What Certificates Are Required For Structural Steel?

1. What Certificates Are Required for Structural Steel?

Structural steel certification is an essential part of international steel procurement, particularly for construction projects, industrial facilities, infrastructure development and engineered steel structures.

For international buyers, the most important document is usually the Mill Test Certificate (MTC) or Material Test Report (MTR), which provides evidence of the steel's chemical composition, mechanical properties and compliance with the specified material standard.

However, a mill certificate alone may not satisfy every project's requirements.

Depending on the product, destination market and structural application, additional documents may include:

EN 10204 Type 3.1 or Type 3.2 inspection certificates.

Material conformity declarations.

Dimensional inspection reports.

Third-party inspection reports.

Welding procedure and personnel qualification records.

Nondestructive testing reports.

Factory Production Control certificates.

CE marking and applicable performance declarations.

ISO 9001 quality management certificates.

Surface coating and galvanizing inspection reports.

There is no single certificate package that is mandatory for every structural steel product worldwide.

The required documentation depends on the applicable material standards, product form, fabrication processes, construction regulations and purchase contract.

For example, the certification requirements for standard hot-rolled H beams may differ considerably from those for welded built-up girders supplied for a European construction project.

Similarly, a commercial steel distributor may require standard mill documentation, while an EPC contractor purchasing critical structural components may specify additional inspection, traceability and fabrication records.

Xi'an Dongmeng Group Co., Ltd. supplies structural steel products for international distributors, EPC contractors, steel fabricators and industrial project buyers.

This guide explains the major structural steel certificates, their technical purposes, the differences between international certification systems and how buyers can verify documentation before accepting a shipment.

Quick Answer: Which Structural Steel Certificates Should Buyers Request?

For many structural steel purchases, buyers should begin with the following documentation requirements.

These documents serve different purposes.

A manufacturer's quality management certificate does not replace a product-specific MTC, and a third-party inspection report does not automatically establish compliance with every applicable structural steel standard.

2. Why Are Structural Steel Certificates Important?

Structural steel is commonly used in load-bearing applications.

Its quality and traceability can influence structural performance, construction safety and project acceptance.

Certificates and inspection records provide documented evidence that the material or manufacturing process has been evaluated against specified requirements.

2.1 Material Grade Verification

Structural steel grades are defined by material standards.

Common examples include:

ASTM A36.

ASTM A572 Grade 50.

ASTM A992.

S235JR.

S355JR.

S355J2.

Q235B.

Q355B.

SS400.

Different grades can have different chemical composition, yield strength, tensile strength and impact toughness requirements.

An inspection certificate helps buyers verify that the delivered material corresponds to the specified grade.

2.2 Mechanical Property Verification

Structural steel may be subject to tensile testing and other specified mechanical tests.

Relevant properties include:

Yield Strength

The stress associated with the onset of yielding under the specified test conditions.

Tensile Strength

The maximum engineering stress reached during a tensile test.

Elongation

A measure of plastic deformation during tensile testing.

Impact Toughness

The energy absorbed during a specified impact test, commonly Charpy V-notch testing.

These values must be compared against the applicable material specification and product thickness.

2.3 Material Traceability

Material traceability connects the delivered steel to its production and inspection records.

A traceability system may connect:

Finished Steel Section → Product Identification → Heat Number → Production Records → Material Test Certificate

This becomes particularly important when the steel is cut, drilled, welded or incorporated into a larger fabricated structure.

2.4 Project Acceptance and Compliance

Structural steel projects may require certificates to demonstrate compliance with:

Contract specifications.

Engineering drawings.

Product standards.

Fabrication requirements.

Applicable construction-product regulations.

Quality assurance plans.

Missing documentation can delay acceptance even when the physical steel appears satisfactory.

3. What Is a Structural Steel Mill Test Certificate (MTC)?

A Mill Test Certificate is a document associated with steel production that identifies material characteristics and relevant inspection results.

The terms MTC, MTR and Mill Test Report are often used in international steel procurement.

However, their exact documentary status depends on the applicable standard and contractual requirements.

3.1 What Information Should an MTC Contain?

A material test certificate commonly includes the following information.

Not every document will contain the same fields.

The actual requirements depend on the material standard, certificate type and order.

3.2 Example: MTC Information for S355JR H Beams

Consider an illustrative procurement requirement.

The MTC should identify the applicable production material and provide the inspection results required by the material standard and order.

For example, relevant tensile and chemical composition results should be evaluated against the specified requirements.

Important: This table illustrates the information required for a purchase. It does not represent an actual mill certificate or actual steel test results.

3.3 Is a Mill Test Certificate Mandatory for Every Steel Product?

Not necessarily.

The required document depends on the product specification, contractual conditions and applicable regulations.

Certain applications may accept a declaration or test report based on nonspecific inspection.

Other applications require specific inspection results or additional independent validation.

For engineered structural steel procurement, requesting traceable material testing documentation is a sound purchasing practice.

However, buyers should specify the required certificate type before placing an order.

4. EN 10204 Certificate Types: 2.1 vs 2.2 vs 3.1 vs 3.2

EN 10204 is an important European standard defining types of inspection documents supplied for metallic products.

It distinguishes between documents based on nonspecific inspection and those based on specific inspection.

The four principal types are:

Type 2.1.

Type 2.2.

Type 3.1.

Type 3.2.

4.1 EN 10204 Certificate Comparison Table

The certificate types should be selected according to the applicable product standard, technical specification and purchase order.

4.2 EN 10204 Type 2.1

Type 2.1 is a declaration of compliance with the order.

The manufacturer declares that the supplied products conform to the purchasing requirements.

However, the document does not include test results.

This type may be acceptable for certain products or applications where specific test data is not required.

It is generally unsuitable where the project requires documented chemical and mechanical test results.

4.3 EN 10204 Type 2.2

Type 2.2 is a test report.

It includes a declaration of compliance and test results based on nonspecific inspection.

Nonspecific inspection means that the results are not necessarily obtained from the particular products supplied in the order.

Therefore, buyers should not treat a Type 2.2 report as equivalent to a Type 3.1 certificate.

4.4 EN 10204 Type 3.1

Type 3.1 is an inspection certificate based on specific inspection.

It is issued by the manufacturer and validated by an authorized inspection representative who is independent of the manufacturing department.

The certificate includes the results of inspections defined by the product specification, applicable requirements and purchase order.

A Type 3.1 certificate is not automatically a third-party inspection certificate.

The required independence relates to the manufacturer's inspection representative and manufacturing department.

4.5 EN 10204 Type 3.2

Type 3.2 involves additional validation.

The document is prepared by the manufacturer's authorized inspection representative, independent of manufacturing, together with either:

The purchaser's authorized inspection representative; or

An inspector designated by applicable official regulations.

The additional validation must follow the requirements of EN 10204.

4.6 Does Type 3.2 Mean Every Steel Beam Must Be Tested Individually?

No.

The inspection and testing unit is determined by the relevant product standard, applicable requirements and purchase specification.

Specific inspection does not automatically mean destructive testing of every finished beam.

For example, a test unit may be defined by the production heat, batch or other specified grouping.

The inspection procedure must follow the applicable requirements.

5. EN 10204 3.1 vs 3.2: Which Certificate Should Buyers Choose?

This is one of the most common questions in international structural steel procurement.

Both certificate types include specific inspection results, but they differ in validation requirements.

Choose Type 3.1 When:

The project specification requires Type 3.1.

Material traceability and specific inspection data are required.

The buyer accepts manufacturer-issued inspection certification.

No additional authorized validation under Type 3.2 is specified.

Choose Type 3.2 When:

The project specification explicitly requires Type 3.2.

Additional authorized validation is required.

The purchaser or applicable regulation requires the designated inspection participation.

The inspection arrangements can be organized according to the standard.

Procurement Considerations

Type 3.2 arrangements may involve additional inspection coordination and costs.

The buyer should clarify the required certificate before production.

It may not be possible to reproduce all required inspection participation retrospectively after the material has been manufactured.

Practical Recommendation: If the project requires EN 10204 Type 3.2, include the requirement in the initial RFQ rather than requesting it after shipment.

6. ASTM Structural Steel Certification Requirements

North American structural steel procurement commonly follows ASTM material specifications.

These specifications define material requirements, test procedures and relevant documentation obligations.

6.1 Common ASTM Structural Steel Standards

The exact standard must be appropriate for the selected product form.

6.2 Material Test Reports for ASTM Structural Steel

For steel supplied under applicable ASTM specifications, buyers should review the relevant material test report and required product documentation.

An MTR commonly provides:

Producing mill information.

Material specification.

Heat identification.

Chemical composition.

Mechanical test results.

Relevant product details.

Required certification information.

The actual reporting requirements depend on the governing specification.

6.3 ASTM A36 Certification

For ASTM A36 structural steel, the buyer should confirm that the material satisfies the specified requirements for the relevant product form and thickness.

The appropriate material documentation should be supplied in accordance with the standard and purchase requirements.

6.4 ASTM A572 Grade 50 Certification

For ASTM A572 Grade 50, purchasers should verify the applicable grade, material properties and documentation.

Where the project requires Charpy testing or other supplementary requirements, these must be specified separately where applicable.

6.5 ASTM A992 Certification

ASTM A992 is commonly used for structural steel shapes, particularly wide-flange members.

It is not a general-purpose steel plate specification.

When purchasing welded built-up beams manufactured from structural plates, buyers should specify an appropriate plate material standard.

Important: ASTM compliance does not automatically produce an EN 10204 Type 3.1 certificate. If both ASTM material compliance and a particular EN inspection document are required, the requirements should be agreed with the supplier and producing mill.

7. CE Marking and EN 1090: Are They Required for Structural Steel?

CE marking is particularly important for structural steel products placed on the European market.

However, not every steel item falls under the same conformity-assessment requirements.

The product's intended use and the applicable harmonized technical specifications must be determined first.

7.1 What Is CE Marking?

CE marking indicates that the manufacturer has fulfilled the applicable conformity obligations for a product covered by relevant European legislation and harmonized technical specifications.

For covered construction products, this involves the applicable performance assessment and declaration requirements.

CE marking is not the same as a mill inspection certificate.

7.2 What Is EN 1090?

The EN 1090 series addresses the execution and conformity assessment of structural metal components.

Two important parts are:

EN 1090-1

Requirements for conformity assessment of structural components within its scope.

EN 1090-2

Technical execution requirements for steel structures.

These standards serve different purposes.

EN 1090-1 relates to conformity assessment, while EN 1090-2 addresses execution requirements such as fabrication, welding and inspection.

7.3 What Is Factory Production Control (FPC)?

Factory Production Control is a system used to control relevant manufacturing activities and maintain the required product performance.

For products covered by the applicable EN 1090-1 conformity-assessment system, an appropriate notified body may be required to certify the manufacturer's FPC.

An FPC certificate concerns the relevant manufacturing-control scope.

It does not replace the material certificates for individual steel heats or products.

7.4 Declaration of Performance (DoP)

A Declaration of Performance provides information about the declared performance of a construction product under the applicable regulatory framework.

For covered products, the required declaration accompanies the relevant conformity process.

7.5 EU Construction Products Regulation: 2026 Update

The European Union has introduced Regulation (EU) 2024/3110, which became fully applicable in January 2026.

The transition from the previous Construction Products Regulation remains product-specific.

Under the applicable framework, documentation may involve:

Declaration of Performance (DoP); or

Declaration of Performance and Conformity (DoPC).

Applicable CE marking.

Relevant technical documentation.

Required notified-body involvement.

Factory Production Control certification where applicable.

The precise requirements depend on the product family, harmonized technical specification and transitional arrangements.

Important: The 2026 regulatory update does not mean every structural steel product automatically requires the same new declaration or certificate.

Buyers should verify the applicable requirements for the specific product being placed on the EU market.

7.6 Does Every Hot-Rolled H Beam Require EN 1090 Certification?

No.

The requirements for constituent rolled steel products and fabricated structural components must be distinguished.

A standard hot-rolled structural section may be subject to applicable material product conformity requirements.

A fabricated load-bearing structural component may fall within the scope of EN 1090-1.

The applicable conformity route depends on the product's intended use and the relevant harmonized technical specification.

Do not assume that all structural steel products must carry an EN 1090 FPC certificate.

8. ISO 9001 Certification for Structural Steel Suppliers

ISO 9001 is one of the most widely recognized quality management system standards.

It provides requirements for establishing, operating and improving a quality management system.

8.1 What Does ISO 9001 Certification Demonstrate?

A valid ISO 9001 certificate indicates that an organization's quality management system has been assessed against the applicable requirements within the stated certification scope.

This can provide buyers with additional confidence in the organization's management processes.

However:

ISO 9001 certification does not prove that a particular H beam, channel or steel plate satisfies ASTM A36, S355JR or Q355B material requirements.

Product-specific compliance must be verified separately.

8.2 ISO 9001:2026 Update

The ISO 9001:2026 edition was published in September 2026.

Organizations transitioning from earlier editions should follow the applicable certification transition arrangements.

When evaluating supplier certificates, buyers should check:

Applicable standard edition.

Certification body.

Accreditation information.

Certificate validity.

Certified company name.

Facility or organizational scope.

Activities covered by certification.

8.3 Is ISO 9001 Mandatory for Structural Steel Suppliers?

ISO 9001 certification is not universally mandatory for all structural steel suppliers.

However, some customers, project specifications and supplier qualification systems require it.

A supplier without ISO 9001 certification may still produce compliant steel products, provided the relevant product and contractual requirements are satisfied.

8.4 How to Verify a Supplier's ISO Certificate

Buyers should verify the certificate directly with the issuing certification body or appropriate verification service.

The scope should cover the activities relevant to the order.

For example, a certificate covering steel trading should not be presented as evidence that the company operates a certified structural steel rolling mill.

9. Welding Certificates Required for Fabricated Structural Steel

For welded built-up H beams and fabricated structural components, material certificates alone may be insufficient.

Welding introduces additional quality-control requirements.

9.1 Welding Procedure Specification (WPS)

A WPS identifies the welding variables and instructions needed to perform a specified welding operation.

Information may include:

Welding process.

Base metal.

Filler metal.

Joint configuration.

Welding position.

Preheat requirements.

Interpass temperature.

Heat-input or electrical parameters.

Welding technique.

The WPS must meet the applicable fabrication code requirements.

9.2 Welding Procedure Qualification Record

A Welding Procedure Qualification Record, commonly called WPQR or PQR depending on the applicable system, documents qualification testing for a welding procedure.

The required qualification tests depend on the relevant welding code.

Some welding procedures may qualify for prequalified status under specific conditions.

Therefore, a PQR is not automatically required for every welded joint.

9.3 Welder Qualification Records

Structural welding may require evidence that the assigned welding personnel are appropriately qualified.

Depending on the project, qualification systems may reference:

AWS D1.1/D1.1M.

ISO 9606-1.

Other applicable welding qualification standards.

The qualification must be appropriate for the relevant process, position, material and applicable limitations.

9.4 AWS D1.1 Structural Welding Requirements

AWS D1.1 is a major structural welding code used in relevant steel construction applications.

It includes requirements addressing:

Welding design.

Procedure requirements.

Welding qualification.

Fabrication.

Inspection.

The applicable edition and project requirements should be specified in the contract.

9.5 ISO 3834 Welding Quality Requirements

The ISO 3834 series addresses quality requirements for fusion welding of metallic materials.

Depending on the required quality level, relevant parts include:

ISO 3834-2: Comprehensive quality requirements.

ISO 3834-3: Standard quality requirements.

ISO 3834-4: Elementary quality requirements.

Certification to an appropriate ISO 3834 part may be required by a customer or project.

However, ISO 3834 certification is not universally mandatory for every welded H beam.

10. Nondestructive Testing Reports for Structural Steel

Nondestructive Testing (NDT) is used to examine products or welds without destroying the inspected component.

The required testing method depends on the product, weld geometry, applicable code and project specification.

10.1 Common Structural Steel NDT Methods

10.2 Are UT Reports Required for All Structural Steel Beams?

No.

A standard hot-rolled H beam does not automatically require ultrasonic testing simply because it is intended for structural use.

Additional ultrasonic inspection may be specified for particular products, material quality requirements or applications.

For welded built-up beams, UT may be required for certain welded joints.

However, not every weld geometry is suitable for the same ultrasonic examination method.

10.3 NDT Report Requirements

An NDT report should identify relevant information such as:

Inspected component.

Inspection location.

Examination method.

Applicable examination procedure.

Acceptance criteria.

Equipment information where relevant.

Inspection results.

Inspector identification and qualification.

Inspection date.

For critical applications, the qualification of NDT personnel may be specified according to recognized systems such as ISO 9712.

10.4 Third-Party Inspection vs NDT

A third-party inspection and an NDT examination are not the same thing.

Third-party inspection describes the participation of an independent inspection organization.

NDT describes a technical examination method.

A third-party inspector may witness or review an NDT activity, but this does not automatically make every NDT report a Type 3.2 inspection certificate.

11. Certificates for Hot-Dip Galvanized Structural Steel

Galvanized structural steel may require additional coating inspection records.

The applicable requirements depend on the galvanizing process and product form.

11.1 ISO 1461

ISO 1461 specifies requirements and test methods for hot-dip galvanized coatings on applicable fabricated iron and steel articles.

Where specified, coating inspection may address:

Coating thickness.

Surface appearance.

Coating continuity.

Applicable acceptance conditions.

11.2 ASTM A123/A123M

ASTM A123/A123M covers hot-dip galvanized coatings on applicable iron and steel products.

It is commonly referenced in North American galvanizing specifications.

11.3 What Coating Records Should Buyers Request?

For galvanized H beams, channels and structural angles, buyers may request:

Galvanizing inspection records.

Coating thickness measurements.

Surface inspection results.

Relevant processing information.

Repair records where applicable.

11.4 Is a Galvanizing Certificate the Same as an MTC?

No.

An MTC provides evidence related to the base steel material.

A galvanizing inspection record addresses the zinc coating.

A project may require both.

Procurement Recommendation: Specify the coating standard and inspection requirements before galvanizing. Do not rely only on a general statement that the product is galvanized.

12. AISC Certification for Structural Steel Fabrication

For projects using North American structural steel practices, AISC certification may be relevant.

AISC operates certification programs for qualifying structural steel fabricators and other covered activities.

12.1 What Does AISC Certification Demonstrate?

AISC certification assesses specified aspects of a participant's quality management and relevant fabrication or erection capability.

The program may be used by project owners and specifiers as part of supplier qualification.

12.2 AISC 207 Certification Standard

The AISC 207-25 certification standard became effective for the relevant program in February 2026.

The requirements apply according to the certification program and scope.

12.3 Is AISC Certification Mandatory?

AISC certification is not automatically required for every structural steel product sold in the United States.

Requirements can depend on:

Project specifications.

Local building requirements.

Owner requirements.

Procurement contracts.

Applicable fabrication scope.

12.4 AISC Certification vs Material Test Report

These documents address different matters.

AISC Certification: Evaluates the certified organization's relevant quality management and operational capability.

Material Test Report: Provides information and test results for a particular steel material or production unit.

Neither document automatically replaces the other.

13. Certificate Requirements by Structural Steel Product Type

Different structural steel products may require different documentation packages.

The following table provides a practical purchasing reference.

The exact requirements must follow the purchase specification.

A simple commercial steel angle order should not automatically be assigned the same documentation requirements as a fatigue-critical fabricated bridge member.

14. Structural Steel Certificates by Destination Market

Certification requirements vary across markets and projects.

14.1 European Union

EU construction-product procurement may involve:

Applicable EN material standards.

Required EN 10204 inspection documents.

Applicable CE marking.

Relevant performance declarations.

Factory Production Control certification where required.

EN 1090 execution requirements for relevant structural components.

Project-specific welding and inspection documentation.

The correct requirements depend on the product and applicable construction-product regulations.

14.2 United States

U.S. structural steel procurement may involve:

Applicable ASTM material specifications.

Material Test Reports.

AISC-related fabrication requirements.

AWS welding requirements.

Project-specific inspection documentation.

Additional regulatory or contractual requirements.

AISC certification may be required for particular projects or qualification programs, but it is not a universal requirement for all imported structural steel.

14.3 Middle East

Industrial projects in the Middle East frequently reference ASTM, EN or project-specific technical requirements.

Depending on the project, documentation may include:

Material certificates.

Third-party inspection reports.

Welding qualification records.

NDT reports.

Approved material submittals.

Other project-required quality documentation.

The EPC contractor or project owner normally defines the applicable requirements.

14.4 Southeast Asia and Africa

Structural steel requirements vary by country, project owner and engineering specification.

Some projects accept multiple international material standards, while others require specific certification systems.

Buyers should obtain written confirmation of the applicable material and inspection requirements before ordering.

15. How to Verify a Structural Steel Certificate Is Authentic

A certificate should not be accepted solely because it contains a company stamp, certificate number or recognizable standard reference.

Buyers should verify both the authenticity of the document and its relevance to the delivered products.

15.1 Check the Issuing Organization

Confirm that the document identifies the responsible issuer.

For an MTC, this should be consistent with the actual manufacturing and inspection arrangements.

For a management-system certificate, verify the certification body and certification scope.

15.2 Verify the Material Grade

Check that the reported material grade matches the purchase order.

For example:

Purchase Order: S355JR - EN 10025-2

Material Certificate: Q355B - GB/T 1591

These are not automatically equivalent documentary specifications.

A grade substitution requires the appropriate technical and contractual approval.

15.3 Verify the Standard and Edition

Confirm that the material certificate refers to the required standard.

Where a specific standard edition is contractually required, the certificate should be consistent with that requirement.

15.4 Match the Heat Number

The material identification should correspond to the certificate.

For example:

These are illustrative identifiers.

The important requirement is consistent traceability between the physical product, production records and certificate.

15.5 Review the Test Results

Buyers should review actual test values rather than relying only on a statement of compliance.

For example:

When reviewing results, consider product thickness, specimen orientation and the applicable testing requirements.

15.6 Verify Certification Bodies

For management-system or factory certification, check the certificate through the issuing body or appropriate official registry.

For EU notified-body activities, confirm that the organization is appropriately notified for the relevant product and assessment scope.

15.7 Identify Common Certificate Problems

Potential warning signs include:

Missing manufacturer identification.

Unverifiable certificate number.

Incorrect material grade.

Inconsistent heat numbers.

Unexplained changes to test results.

Missing authorization.

Expired management-system certificates.

Certificate scope unrelated to the supplied activity.

Misrepresentation of Type 3.1 as independent Type 3.2 certification.

A certificate with correct formatting can still be invalid or irrelevant if it does not correspond to the actual delivered steel.

16. Structural Steel Certificate Verification Checklist

The following checklist can be used during supplier qualification and pre-shipment document review.

This checklist is intended for procurement planning.

The project inspection and test plan should establish the actual acceptance criteria.

17. How to Specify Structural Steel Certificates in an RFQ

The best time to define certificate requirements is before the supplier prepares the final quotation.

A complete RFQ should identify the product, standard and required documentation.

Example 1: European H Beam Procurement

Additional EU conformity documentation must be determined according to the intended product use and applicable requirements.

Example 2: Custom Welded H Beam Procurement

The fabrication requirements should be reviewed and approved before production.

Example 3: Galvanized Structural Steel

The applicable coating standard and acceptance criteria should be agreed before manufacturing.

18. Common Mistakes When Requesting Structural Steel Certificates

Mistake 1: Assuming All Steel Products Require Type 3.2

Type 3.2 is not universally mandatory.

Buyers should request it when required by the project, regulation or contract.

Mistake 2: Treating ISO 9001 as a Product Certificate

ISO 9001 addresses a management system.

It does not replace material-specific inspection results.

Mistake 3: Confusing EN 1090 with EN 10204

EN 1090 relates to applicable structural component conformity and execution requirements.

EN 10204 defines inspection document types for metallic products.

Mistake 4: Requesting Certificates After Production

Some inspection requirements must be arranged before or during manufacturing.

Retrospective certificate requests may be impossible to satisfy correctly.

Mistake 5: Accepting Untraceable Material

A certificate has limited practical value if it cannot be connected to the delivered products.

Mistake 6: Ignoring Weld Inspection Records

For welded structural members, base-material certification alone may not establish fabrication compliance.

Mistake 7: Assuming Third-Party Inspection Guarantees Full Compliance

Third-party inspection is limited to the agreed scope.

It does not automatically verify every design or manufacturing requirement.

Mistake 8: Accepting a Certificate for the Wrong Standard

A material supplied under one national standard should not be represented as certified under another without documented evidence of compliance.

Mistake 9: Ignoring Certificate Scope and Validity

A valid management-system certificate may not cover the relevant manufacturing facility or activity.

Mistake 10: Failing to Define Acceptance Criteria

The contract should identify the required tests, inspection documents, acceptance requirements and document submission process.

19. Frequently Asked Questions About Structural Steel Certificates

Q1. What certificate is required for structural steel?

The required certificate depends on the product standard, structural application, project specification and destination market. Many engineering projects request an MTC or MTR, while additional inspection, fabrication or conformity documents may also be required.

Q2. What is an MTC for structural steel?

An MTC is a material test document that identifies relevant steel material information and inspection results. It is used to verify specified material properties and support traceability.

Q3. What is the difference between an MTC and an MTR?

MTC means Mill Test Certificate, while MTR means Material Test Report or Mill Test Report. The terms are often used interchangeably in steel procurement, but the exact document requirements depend on the relevant specification and contract.

Q4. Is EN 10204 Type 3.1 mandatory for all structural steel?

No. Type 3.1 is commonly requested for many structural steel projects, but it is not universally mandatory for every product or application.

Q5. What is the difference between EN 10204 Type 3.1 and Type 3.2?

Type 3.1 is validated by the manufacturer's authorized inspection representative independent of manufacturing. Type 3.2 includes additional validation by the purchaser's authorized representative or an inspector designated by applicable official regulations.

Q6. Is Type 3.1 a third-party inspection certificate?

No. Type 3.1 is a manufacturer-issued inspection certificate with the specified internal independence.

Q7. Does ASTM A36 structural steel require an MTR?

The required documentation depends on the applicable ASTM specification and purchase requirements. Buyers should request the relevant material test documentation and confirm its content before ordering.

Q8. Does structural steel need CE marking?

Certain structural steel construction products placed on the EU market require CE marking under applicable harmonized technical specifications and regulatory requirements. The obligation is product-specific and should not be assumed for every steel item.

Q9. What is EN 1090 certification?

EN 1090-related certification generally concerns applicable conformity assessment and factory production control requirements for structural metal components. It is different from a material inspection certificate.

Q10. Is ISO 9001 required for structural steel suppliers?

ISO 9001 certification is not universally mandatory. It may be required by a purchaser, supplier qualification system or project specification.

Q11. Are welding certificates required for welded H beams?

Welded H beams may require welding procedures, qualification records, personnel qualification and inspection documentation according to the applicable fabrication code and project requirements.

Q12. Is ultrasonic testing required for every H beam?

No. Ultrasonic testing is required only where specified by the applicable product, fabrication or project requirements.

Q13. How can buyers verify a steel mill certificate?

Verify the issuing manufacturer, material grade, standard, heat number, inspection results and validation information. Confirm that the certificate corresponds to the delivered material.

Q14. Can a supplier provide dual-certified structural steel?

Dual certification may be possible when the actual material satisfies the requirements of both applicable standards and the necessary inspection documentation is properly issued. Similar material grades alone do not establish dual compliance.

Q15. What certificates are needed for galvanized structural steel?

Depending on the project, buyers may require base material certification and galvanizing inspection records according to standards such as ISO 1461 or ASTM A123/A123M.

20. Conclusion: Which Structural Steel Certificates Should Buyers Request?

Structural steel certification is an important part of material quality assurance, project acceptance and international procurement.

However, different certificates serve different technical purposes.

Mill Test Certificates and Material Test Reports provide information about the steel material and relevant inspection results.

EN 10204 Type 3.1 and 3.2 certificates define specific inspection documentation and validation requirements.

CE marking and EN 1090-related documentation address applicable European construction-product and structural execution requirements.

ISO 9001 and AISC certification may provide evidence of a supplier's or fabricator's relevant quality management capability.

Welding qualification records, NDT reports and coating inspection records address specific manufacturing and inspection activities.

For international buyers, the most reliable procurement approach is to:

Identify the applicable material and product standards.

Confirm the intended structural application.

Define the required certificate types before production.

Verify the manufacturer and relevant certification scope.

Maintain material traceability.

Review chemical and mechanical test results.

Confirm fabrication and welding documentation where required.

Verify applicable destination-market compliance.

Review the complete documentation package before shipment.

Ensure that delivered materials correspond to the approved records.

A professional structural steel purchasing process should not focus only on obtaining certificates. It should ensure that every required document provides reliable, traceable evidence of compliance with the actual project specification.

21. Source Certified Structural Steel from Xi'an Dongmeng Group Co., Ltd.

Xi'an Dongmeng Group Co., Ltd. provides structural steel products and international procurement support for steel distributors, EPC contractors, construction companies and industrial fabrication projects.

Our carbon steel product portfolio includes standard and customized structural sections for international B2B applications.

Structural Steel Products

Product categories include:

Carbon Steel H Beams.

Carbon Steel I Beams.

Structural Steel Channels.

Equal and Unequal Steel Angles.

Carbon Steel Flat Bars.

Structural T Sections.

Cold-Formed C Purlins.

Cold-Formed Z Purlins.

Welded Built-Up H Beams.

Custom Structural Steel Profiles.

Material Standards and Procurement Requirements

Structural steel inquiries may involve standards such as:

ASTM A36/A36M.

ASTM A572/A572M.

ASTM A992/A992M.

EN 10025 series.

GB/T 700.

GB/T 1591.

JIS G3101.

Available steel grades, section dimensions, processing methods and inspection documentation depend on the relevant product and manufacturing arrangements.

Inspection and Documentation Support

Depending on product availability and confirmed manufacturing arrangements, project inquiries can address:

Material Documentation

Mill Test Certificates and relevant material inspection records.

Material Traceability

Heat-number identification and related production documentation.

Dimensional Inspection

Verification of required section dimensions and applicable tolerances.

Fabrication Documentation

Drawing-based manufacturing requirements and relevant welding documentation.

Additional Inspection

Third-party inspection, NDT and other testing arrangements where specified and feasible.

Export Coordination

Packing, shipment identification and project-specific documentation requirements.

Request Structural Steel with Project-Specific Documentation

Are you sourcing structural steel beams, channels, angles or customized steel profiles for an international project?

Send your technical requirements to Xi'an Dongmeng Group Co., Ltd.

For an accurate quotation, please provide:

Product type and section designation.

Required steel grade.

Material and dimensional standards.

Length and quantity.

Required inspection certificate type.

Additional testing requirements.

Welding or fabrication requirements.

Destination country and port.

Target delivery schedule.

Our team can review the purchasing specifications, confirm available product and documentation options, and prepare a quotation based on the project requirements.

Contact Xi'an Dongmeng Group Co., Ltd. for structural steel specifications, material documentation inquiries and international B2B procurement support.

Office Information

Completely recapitalize 24/7 communities via standards compliant metrics whereas.

Phone Number & Email

+8615769214734
office@dongmjd.com

WhatsApp

Dong: +8615769214734

Our Office Address

Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province

Technical References

The technical information in this article is based on the following standards and industry references:

EN 10204:2004 - Metallic Products: Types of Inspection Documents.

EN 10025-2 - Hot-Rolled Products of Structural Steels: Technical Delivery Conditions for Non-Alloy Structural Steels.

EN 10365 - Hot-Rolled Steel Channels, I and H Sections: Dimensions and Masses.

ASTM A6/A6M - General Requirements for Rolled Structural Steel Bars, Plates, Shapes and Sheet Piling.

ASTM A36/A36M - Carbon Structural Steel.

ASTM A572/A572M - High-Strength Low-Alloy Columbium-Vanadium Structural Steel.

ASTM A992/A992M - Structural Steel Shapes.

EN 1090-1 - Requirements for Conformity Assessment of Structural Components.

EN 1090-2 - Technical Requirements for Steel Structures.

AWS D1.1/D1.1M - Structural Welding Code-Steel.

ISO 9001:2026 - Quality Management Systems: Requirements.

ISO 3834 - Quality Requirements for Fusion Welding of Metallic Materials.

ISO 9712:2021 - Non-Destructive Testing: Qualification and Certification of NDT Personnel.

ISO 1461:2022 - Hot-Dip Galvanized Coatings on Fabricated Iron and Steel Articles.

ASTM A123/A123M - Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products.

AISC 207-25 - Standard for Certification Programs.

Regulation (EU) 2024/3110 - European Construction Products Regulation.

Technical Disclaimer: This article provides general technical and procurement guidance. Certificate requirements vary by product, contract, intended use and applicable regulation. Final documentation and material acceptance must be verified against the approved project specifications and relevant standards.