Chrome Moly Pipe & Tube

Chrome moly steel is a family of low- and intermediate-alloy steels in which chromium and molybdenum are used to improve performance under elevated-temperature service.

Chromium contributes to oxidation and scaling resistance and influences hardenability and high-temperature material stability.

Molybdenum contributes to elevated-temperature strength and resistance to time-dependent creep deformation.

Advanced creep-strength-enhanced grades such as P91, P92, T91 and T92 use additional alloying and carefully controlled heat treatment to achieve the microstructure required for demanding long-term high-temperature service.

Chrome moly materials are therefore widely used where equipment operates under combinations of:

Temperature + Pressure + Long Service Life + Thermal Cycling + Creep Loading

Typical industries include thermal power generation, boilers, refineries, petrochemical plants and high-temperature process equipment.

Procurement Item	Supply Scope
Material Family	Chromium-Molybdenum / Cr-Mo Alloy Steel
ASTM Pipe	ASTM A335 / ASME SA335
ASTM EFW Pipe	ASTM A691 / ASME SA691
ASTM Boiler Tube	ASTM A213 / ASME SA213
European Tube	EN 10216-2
A335 Grades	P5, P9, P11, P12, P22, P91, P92
A213 Grades	T5, T9, T11, T12, T22, T91, T92
A691 Alloy Families	1¼Cr, 2¼Cr, 5Cr, 9Cr
EN Cr-Mo Grades	13CrMo4-5, 10CrMo5-5, 10CrMo9-10, X10CrMoVNb9-1, X10CrWMoVNb9-2
Manufacturing	Seamless / Hot Finished / Cold Finished / EFW
Pipe Dimensions	NPS + Schedule or OD × WT
Tube Dimensions	OD × Wall Thickness
Length	SRL, DRL, 6 m, 12 m, Fixed Length, Cut-to-Length
Ends	PE / BE / Machined End
Inspection	Chemistry, Mechanical Test, PMI, Hardness, NDT, Hydro/Pressure Test
Certification	MTC / EN 10204 3.1; project-specific documentation available
Third Party	SGS / BV / TÜV / Customer-Nominated Inspector
Applications	Power · Boiler · Refinery · Petrochemical · Steam · Hydrogen Service

 

 

ASTM A335 covers seamless ferritic alloy-steel pipe intended for high-temperature service. Current ASTM requirements include chemical, tensile, hardness, hydrostatic and nondestructive examination requirements.

ASTM A335 is the core standard when buyers search for:

Chrome Moly Pipe

Cr-Mo Seamless Pipe

High Temperature Alloy Steel Pipe

P11 Pipe

P22 Pipe

P91 Pipe

ASTM A335 Grade Range

Grade	General Alloy Family	Typical Procurement Applications
P5	Approx. 5Cr-0.5Mo	Refinery and petrochemical process piping
P9	Approx. 9Cr-1Mo	High-temperature refinery piping
P11	Approx. 1.25Cr-0.5Mo	Steam, boiler and process piping
P12	Approx. 1Cr-0.5Mo	Elevated-temperature pressure piping
P22	Approx. 2.25Cr-1Mo	Power, refinery and steam systems
P91	Modified 9Cr-1Mo-V-Nb	High-energy and high-efficiency power piping
P92	Advanced 9Cr creep-resistant family	Advanced high-temperature steam piping

Nominal alloy descriptions are provided for procurement orientation only. Actual chemistry must be checked against the ordered ASTM/ASME specification and MTC.

P11 belongs to the conventional lower-chromium Cr-Mo family and is widely specified for elevated-temperature pressure service.

Typical applications include steam systems, refinery process lines, boiler-related piping and petrochemical systems.

P11 offers a practical balance between high-temperature properties, availability and fabrication requirements.

P11 must not automatically be replaced by P22 or another grade because the correct material must follow the project piping material specification.

P22 belongs to the approximately 2.25Cr-1Mo family and is one of the most important traditional Chrome Moly piping grades.

It is widely used in power plants, steam systems, boiler connections, refinery process piping and petrochemical installations.

For fabricated P22 systems, the WPS/PQR should control welding consumables, preheat, interpass temperature, heat input and PWHT according to the governing construction code.

P5 belongs to the approximately 5Cr-0.5Mo alloy family.

Its higher chromium content makes it important for selected refinery and petrochemical services where more alloying is required than conventional P11/P22 materials.

P5 is particularly relevant to refinery-oriented Chrome Moly product clusters.

P9 belongs to the approximately 9Cr-1Mo alloy family.

It should not be confused with P91.

Although both are often described as 9% chromium materials, P91 is a creep-strength-enhanced steel with additional controlled alloying and significantly different heat-treatment and fabrication requirements.

P91 is a creep-strength-enhanced ferritic steel commonly described as modified 9Cr-1Mo-V-Nb material.

Its procurement requires substantially greater attention to:

Material Identity → Heat Treatment → Microstructure → Hardness → Welding → PWHT → Inspection

For critical P91 projects, Dongmeng Group can coordinate material traceability, PMI, hardness testing, MTC review and project-specific inspection documentation.

P91 should not be described merely as an “upgraded P22.”

Changing from P22 to P91 can affect pipe-wall design, fittings, flanges, welding consumables, WPS/PQR, PWHT and inspection requirements.

P92 is an advanced creep-strength-enhanced ferritic alloy used primarily in severe high-temperature power-generation applications.

Its long-term performance depends strongly on correct manufacturing, heat treatment and downstream fabrication.

For P92 RFQs, buyers should clearly specify the required material standard, dimensions, wall thickness, heat-treatment requirements, inspection level and certification package

 

 

ASTM A691 is an important Chrome Moly standard for electric-fusion-welded alloy steel pipe manufactured from pressure-vessel-quality plate for high-pressure service at elevated temperature. The specification nominally covers pipe 16 in. / 400 mm OD and larger, although other dimensions may be supplied when they satisfy the standard.

A691 is therefore especially important for:

Large Diameter

Heavy Wall

High-Pressure

Project-Specific Chrome Moly Piping

Common ASTM A691 Chrome Moly Families

A691 Grade Family	Typical Plate Family	General Description
1¼Cr	A387 Grade 11 family	Approx. 1.25Cr-0.5Mo
2¼Cr	A387 Grade 22 family	Approx. 2.25Cr-1Mo
5Cr	A387 Grade 5 family	Approx. 5Cr-0.5Mo
9Cr	A387 Grade 9 family	Approx. 9Cr-1Mo

The exact plate specification, grade, class and project requirements must be verified during quotation.

This is one of the most important procurement points on the entire Chrome Moly page.

For ASTM A691:

Grade = identifies the plate material

Class = identifies important manufacturing and inspection conditions

ASTM states that Class identifies pipe heat treatment, whether the weld is radiographically examined and whether the pipe is pressure tested.

ASTM A691 Class System

Class Family	Pipe Heat Treatment
10–13	None
20–23	Stress Relieved
30–33	Normalized
40–43	Normalized + Tempered
50–53	Quenched + Tempered

The final class digit then distinguishes radiography and pressure-test combinations.

For example:

Class 22 = Stress Relieved + Radiography + Pressure Test

Class 42 = Normalized & Tempered + Radiography + Pressure Test

Class 52 = Quenched & Tempered + Radiography + Pressure Test

ASTM's current Class table confirms these combinations.

Therefore:

“ASTM A691 2¼Cr Pipe” is not a complete procurement specification.

A stronger RFQ is:

ASTM A691 / 2¼Cr / Class 42 / OD × WT / Length / Ends / Quantity / Inspection / MTC

Requirement	ASTM A335	ASTM A691
Product	Pipe	Pipe
Manufacturing	Seamless	EFW
Base Material	Alloy steel billet/tube hollow	Pressure-vessel-quality plate
Main Service	High-temperature piping	High-pressure, high-temperature piping
Longitudinal Weld	No	Yes
Large Diameter	Possible depending on production	Major application area
Main Procurement Control	Grade	Grade + Class
Weld RT	Not Applicable	Class dependent
Pipe Heat Treatment	Grade/specification dependent	Class/grade dependent
Main RFQ Format	Grade + Size + Schedule	Grade + Class + OD + WT

Neither standard should be described as universally better.

The correct manufacturing route depends on diameter, wall thickness, grade, code requirements, availability, inspection and project economics.

 

 

ASTM A213 is essential to a complete Chrome Moly product system.

The current ASTM A213/A213M specification covers seamless ferritic and austenitic alloy-steel boiler, superheater and heat-exchanger tubes. The tubes may be hot finished or cold finished as specified and are subject to product-specific testing requirements.

This product family should therefore be separated from A335 pipe rather than mixed into the same grade list.

ASTM A213 Chrome Moly Grades

Grade	General Alloy Family	Typical Application
T5	Approx. 5Cr-0.5Mo	Refinery heaters and high-temperature equipment
T9	Approx. 9Cr-1Mo	High-temperature boiler/process equipment
T11	Cr-Mo low-alloy family	Boiler and superheater tube
T12	Cr-Mo low-alloy family	Boiler service
T22	Approx. 2.25Cr-1Mo	Boiler, superheater and reheater
T91	Modified 9Cr creep-resistant alloy	High-temperature power boiler
T92	Advanced creep-resistant alloy	Ultra/high-temperature power boiler

 

ASTM A213 T11 Boiler Tube

T11 is widely used in boiler, superheater and heat-transfer applications requiring Cr-Mo elevated-temperature properties.

Unlike P11 pipe, T11 tube is normally purchased using:

OD × Wall Thickness

rather than primarily using NPS + Schedule.

ASTM A213 T22 Boiler Tube

T22 belongs to the approximately 2.25Cr-1Mo material family and is a major Chrome Moly boiler tube grade.

Typical applications include superheaters, reheaters, boiler pressure parts and other high-temperature heat-transfer equipment.

ASTM A213 T91 Boiler Tube

T91 is a creep-strength-enhanced boiler and superheater tube material associated with demanding modern power-generation equipment.

As with P91, chemistry alone is not enough.

Material condition, heat treatment, hardness, welding and PWHT control are important to final service performance.

ASTM A213 T92 Boiler Tube

T92 is used in advanced high-temperature boiler systems requiring stronger long-term creep performance.

T92 procurement normally requires close control of material certification, heat treatment, fabrication procedures and inspection documentation.

 

Pipe Grade	Related Tube Grade	Main Difference
A335 P5	A213 T5	Pipe vs boiler/superheater tube
A335 P9	A213 T9	Pipe vs boiler/superheater tube
A335 P11	A213 T11	Pressure piping vs heat-transfer tube
A335 P12	A213 T12	Pressure piping vs boiler tube
A335 P22	A213 T22	Pressure piping vs boiler/superheater tube
A335 P91	A213 T91	High-energy pipe vs advanced boiler tube
A335 P92	A213 T92	Advanced pipe vs advanced boiler tube

Same Alloy Family Does Not Mean Same Product

A common procurement mistake is assuming:

P11 = T11

or

P22 = T22

because the chemistry appears related.

That is incorrect from a product-specification perspective.

A335 controls pipe.

A213 controls boiler, superheater and heat-exchanger tube.

Therefore an equipment specification calling for T22 should not automatically be quoted as P22 simply because both belong to a similar 2.25Cr-1Mo family.

For European projects, EN 10216-2 is another major high-temperature alloy tube specification.

EN 10216-2:2024 specifies technical delivery conditions for seamless non-alloy and alloy steel tubes with specified elevated-temperature properties.

Important EN 10216-2 Cr-Mo Grades

Grade	Material No.	General Material Family
13CrMo4-5	1.7335	Cr-Mo
10CrMo5-5	1.7338	Cr-Mo
10CrMo9-10	1.738	Approx. 2.25Cr-1Mo
11CrMo9-10	1.7383	Cr-Mo
X10CrMoVNb9-1	1.4903	Creep-resistant Cr-Mo-V-Nb
X10CrWMoVNb9-2	1.4901	Advanced creep-resistant Cr-W-Mo-V-Nb

Current EN 10216-2 data includes these conventional and advanced Cr-Mo families.

EN 10216-2 13CrMo4-5

13CrMo4-5 / 1.7335 is widely used for elevated-temperature pressure applications including boiler and industrial pressure equipment.

EN 10216-2 10CrMo5-5

10CrMo5-5 / 1.7338 is another European Cr-Mo alloy grade used for pressure applications with specified elevated-temperature properties.

EN 10216-2 10CrMo9-10

10CrMo9-10 / 1.7380 belongs to the approximately 2.25Cr-1Mo family and is widely recognized in European boiler and pressure-equipment applications.

EN 10216-2 X10CrMoVNb9-1

X10CrMoVNb9-1 / 1.4903 is a creep-resistant Cr-Mo-V-Nb material associated with demanding elevated-temperature service.

Its alloy concept is closer to advanced Grade 91 material families than conventional 13CrMo4-5 or 10CrMo9-10.

Buyers frequently search for relationships such as:

P22 equivalent to 10CrMo9-10

or

P91 equivalent to X10CrMoVNb9-1

Such comparisons can be useful for understanding material families, but they should not be presented as automatic substitutions.

Two grades may have broadly similar metallurgy while differing in:

Chemical limits, mechanical properties, heat-treatment requirements, dimensions, tolerances, testing, inspection category and code acceptance.

Any ASTM-to-EN substitution should therefore be approved by the responsible engineer or project specification authority.

There should not be a simple website table stating:

“Use P11 below X°C and P22 above X°C.”

Pressure material selection requires more information.

Design Temperature

As temperature rises, allowable stress, oxidation behavior and creep become increasingly important.

Design Pressure

Pressure affects required wall thickness and the allowable design stress used by the engineering code.

Required Design Life

High-temperature systems operating for many years must consider creep and long-term degradation.

Process Medium

Steam, hydrocarbons, hydrogen-containing fluids and other process environments create different material-selection problems.

Construction Code

The applicable code controls material acceptance, allowable stresses, fabrication and inspection requirements.

Welding Requirements

P11, P22, P91 and P92 do not have identical welding procedures.

Component Compatibility

Pipe, tube, fittings, flanges, valves and welding consumables must be evaluated as part of the complete system.

Grade	Alloy Concept	Procurement Consideration
P11	Conventional lower-alloy Cr-Mo	Common high-temperature piping grade
P22	Approx. 2.25Cr-1Mo	Higher-alloy conventional Cr-Mo
P91	Modified 9Cr creep-strength-enhanced	Much stricter fabrication control

P91 should not be viewed simply as the next grade above P22.

Moving from P22 to P91 can affect the entire piping design and fabrication route.

Chrome Moly materials are widely encountered in refinery and petrochemical equipment operating with hydrogen-containing fluids at elevated temperatures and pressures.

However:

Chrome Moly ≠ automatically suitable for every hydrogen service condition.

Material selection must consider temperature, hydrogen partial pressure, stress, metallurgy, heat treatment and project-specific requirements.

API RP 941 addresses carbon and low-alloy steels in elevated-temperature, elevated-pressure hydrogen service and is an important engineering reference for refinery and petrochemical material selection.

The material engineer should therefore evaluate hydrogen-service suitability rather than selecting a grade only from chromium content.

The ordering method differs between product families.

ASTM A335 Pipe

Normally ordered as:

NPS + Schedule

or

OD × Wall Thickness

Common wall descriptions include:

SCH 40 · SCH 80 · SCH 120 · SCH 160 · STD · XS · XXS · Heavy Wall

ASTM A691 Pipe

Often project-specific:

OD × Wall Thickness

especially for large-diameter EFW construction.

ASTM A213 Tube

Normally ordered as:

OD × Wall Thickness

Tube tolerances and dimensional requirements should be confirmed against the applicable product specification.

EN 10216-2 Tube

Normally ordered based on metric OD × wall thickness together with steel grade, delivery condition and inspection requirements.

Heat treatment is one of the most important controls in Chrome Moly material performance.

Depending on the grade and product standard, material may involve routes such as annealing, normalizing, normalizing and tempering, stress relieving, quenching and tempering, or specification-defined heat-treatment cycles.

For P91, P92, T91 and T92, heat treatment is particularly important because the required creep-resistant properties depend strongly on the final microstructure.

Critical project RFQs should define whether additional heat-treatment records are required.

Chrome Moly material is weldable, but there is no single welding procedure suitable for every Cr-Mo grade.

A qualified WPS/PQR should control relevant parameters according to:

Material grade, thickness, joint design, filler metal, service condition and governing construction code.

These controls can include preheat, interpass temperature, low-hydrogen practice, heat input, controlled cooling and PWHT.

Grade 91 and Grade 92 materials require particularly disciplined fabrication control.

 

Inspection	Procurement Purpose
Chemical Analysis	Verify alloy composition
Mechanical Testing	Verify required properties
PMI	Prevent alloy-grade mix-up
Hardness	Verify material/heat-treatment condition where applicable
Dimensional Inspection	Verify OD, WT, length, straightness and tolerance
Visual Inspection	Check surface and workmanship
UT / NDE	Detect relevant imperfections
Hydrostatic / Pressure Test	Standard/project verification
Radiography	Particularly relevant to A691 EFW Class requirements
Heat Number Verification	Maintain material traceability
Marking Inspection	Confirm grade, standard and heat identity
Third-Party Inspection	Independent project verification

P5, P9, P11, P22 and P91 can look almost identical.

The same applies to many Cr-Mo boiler tube grades.

Visual identification is not sufficient for a mixed-alloy project.

A professional traceability route should follow:

Mill → Heat Number → MTC → Pipe/Tube Marking → PMI → Cutting Traceability → Fabrication → Final Documentation

Where a pipe is cut into shorter pieces, the heat identification should remain traceable according to the applicable project material-control procedure.

MTC Item	Buyer Check
Standard	Matches purchase order
Grade	Correct P/T/EN grade
Heat Number	Matches physical material
Chemistry	Meets specified limits
Mechanical Properties	Meets required specification
Heat Treatment	Correct condition
Dimensions	Matches PO
NDE	Required examination completed
Hydro/Pressure Test	Completed where applicable
Certification	Required document level
Traceability	Physical material can be linked to certificate

For EPC purchasing, the documentation package should be treated as part of the material itself.

Chrome Moly projects normally require more than straight pipe.

Depending on the piping material class, related materials can include:

ASTM A234 Cr-Mo Butt-Weld Fittings

ASTM A182 Cr-Mo Forged Fittings and Flanges

Elbows · Tees · Reducers · Caps · Flanges

For example, P11-family pipe may be combined with appropriately specified WP11 and F11-family components where permitted by the piping class.

Component selection must follow the project specification rather than simply matching similar alloy trade names.

Power Generation

P22, P91, P92, T22, T91 and T92 materials are important in elevated-temperature steam and boiler systems.

Applications can include main steam lines, hot reheat systems, boiler connections, superheaters and reheaters.

Oil Refinery

P5, P9, P11, P22 and related Cr-Mo materials are widely encountered in elevated-temperature refinery piping and equipment.

Material selection depends on the specific process environment and piping class.

Petrochemical Processing

Cr-Mo alloys are used in thermal-processing systems and elevated-temperature pressure equipment where conventional carbon steel does not provide the required service properties.

Boiler Manufacturing

ASTM A213 T11, T22, T91 and T92 are particularly important for boiler, superheater and reheater construction.

EPC Projects

Large projects may combine A335 seamless pipe, A691 large-diameter EFW pipe and A213 boiler tube within the same facility.

A category page should therefore allow procurement teams to identify the correct product standard before submitting an RFQ.

Dongmeng Group can coordinate Chrome Moly pipe and tube orders with project-specific preparation.

Available services can include fixed-length cutting, end beveling, machining, identification marking, grade segregation, heat-number control, inspection coordination, protective treatment and seaworthy export packing.

Materials can be organized according to:

Grade · Heat Number · Size · Piping Item · PO Line · Project Package

This is particularly useful for EPC and fabrication orders involving multiple Cr-Mo grades.

Documentation requirements should be agreed before order confirmation.

Available documentation can include:

MTC / EN 10204 3.1

Chemical and Mechanical Test Results

Heat Number Traceability

PMI Report

Hardness Report

NDT Report

Hydrostatic / Pressure Test Report

A691 Weld RT Documentation where applicable

Dimensional Inspection Report

Heat-Treatment Records where specified

Third-Party Inspection Release

Packing List and Shipping Documentation

Project-specific MDR requirements can be reviewed during quotation.

 

Four Product Systems from One Supplier

Dongmeng Group covers:

A335 Pipe + A691 EFW Pipe + A213 Boiler Tube + EN 10216-2 Tube

This allows procurement teams to source several Chrome Moly product families through one project supply channel.

Conventional and Advanced Cr-Mo Grades

Supply covers traditional P11/P22/T11/T22 materials together with advanced P91/P92/T91/T92 and European Cr-Mo grades.

Seamless + EFW Capability

Both conventional seamless pressure pipe and large-diameter project-specific EFW pipe can be evaluated.

Material Traceability

Heat-number traceability, MTC verification, PMI and project marking can be incorporated into the order.

Inspection Support

PMI, hardness, NDE, pressure testing and third-party inspection can be arranged according to the PO and ITP.

EPC Documentation Support

Inspection and documentation requirements can be defined before production to reduce approval problems before shipment.

 

For faster technical review, send:

Standard + Grade + Product Type + NPS/OD + Wall/Schedule + Length + Quantity + Heat Treatment + Ends + Inspection + Certification + Delivery Destination

A335 Example

ASTM A335 P22 / NPS 8 / SCH 80 / BE / 12 m / 30 MT / EN 10204 3.1 / PMI Required

A691 Example

ASTM A691 2¼Cr / Class 42 / OD 610 mm × WT 30 mm / 12 m / RT + Pressure Test / MTC 3.1

A213 Example

ASTM A213 T22 / OD 50.8 × WT 5.0 mm / 12 m / 10 MT / NDE / MTC 3.1

EN Example

EN 10216-2 10CrMo9-10 / OD × WT / +NT or project-required delivery condition / EN 10204 3.1

For EPC projects, customers can send the MTO, BOM, Piping Material Specification, Data Sheet or Technical Requisition for review.

What is Chrome Moly Pipe?

Chrome Moly pipe is chromium-molybdenum alloy steel pipe used mainly in elevated-temperature pressure service where improved high-temperature strength, creep properties and oxidation behavior are required.

What are the most common ASTM A335 grades?

Common commercial grades include P5, P9, P11, P12, P22, P91 and P92.

What is the difference between ASTM A335 and ASTM A213?

ASTM A335 covers seamless high-temperature alloy-steel pipe.

ASTM A213 covers seamless boiler, superheater and heat-exchanger tube.

Is P22 the same as T22?

No.

They belong to a related alloy family, but P22 is an A335 pipe grade while T22 is an A213 tube grade.

Is P91 the same as T91?

No.

Both belong to modified 9Cr creep-strength-enhanced material families, but they are controlled by different product specifications and used in different product forms.

What is the difference between P9 and P91?

P9 is a conventional approximately 9Cr-1Mo grade.

P91 is a modified creep-strength-enhanced 9Cr alloy with additional controlled alloying and different heat-treatment requirements.

What is ASTM A691 used for?

ASTM A691 covers EFW carbon and alloy steel pipe manufactured from pressure-vessel-quality plate for high-pressure service at elevated temperatures.

It is particularly important for large-diameter Chrome Moly piping.

Why does ASTM A691 need a Class?

The Class defines important requirements involving pipe heat treatment, weld radiography and pressure testing.

Therefore Grade alone is not a complete A691 purchase description.

What is ASTM A213 T22 used for?

T22 is commonly used in boiler, superheater, reheater and other elevated-temperature heat-transfer equipment.

Which EN standard covers Chrome Moly seamless pressure tube?

EN 10216-2 covers seamless non-alloy and alloy steel tubes with specified elevated-temperature properties.

Is 10CrMo9-10 equivalent to P22?

They belong to broadly comparable Cr-Mo material families, but they should not be treated as automatically interchangeable.

The applicable material standard, chemistry, mechanical requirements, heat treatment, testing and code acceptance must be reviewed.

Does Chrome Moly pipe require PWHT?

There is no universal answer.

Requirements depend on grade, thickness, construction code, service conditions and qualified welding procedure.

Why is PMI recommended?

Different Cr-Mo grades can look physically identical.

PMI helps verify alloy identity and reduce the risk of material mix-up.

Can Chrome Moly material be used in hydrogen service?

Applicable Cr-Mo materials are widely used in elevated-temperature hydrogen-containing refinery service, but suitability depends on temperature, hydrogen partial pressure and engineering requirements.

API RP 941 is an important reference for this type of evaluation.

Can third-party inspection be arranged?

Yes. Inspection by SGS, BV, TÜV or another agreed inspection organization can be coordinated when specified in the purchase order.

Can Dongmeng Group supply MTC 3.1?

Yes. MTC / EN 10204 3.1 and additional project documentation can be supplied according to the agreed purchase specification.

 

Need ASTM A335 P5, P9, P11, P12, P22, P91 or P92 pipe, ASTM A213 T11, T22, T91 or T92 boiler tube, ASTM A691 EFW Chrome Moly pipe, or EN 10216-2 Cr-Mo seamless tube?

Send your technical requirement or project MTO to Dongmeng Group.

We can review:

Standard · Grade · Size · Wall Thickness · Quantity · Inspection · MTC · Processing · Delivery

Xi'an Dongmeng Group Co., Ltd.

Phone: +86 157 6921 4734

WhatsApp: Dong, +86 157 6921 4734

Email: office@dongmjd.com

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

Request Price · MTC Sample · Size Availability · Inspection Plan · Delivery Schedule

 

Xi'an Dongmeng Group Co., Ltd. is one of the leading chrome moly pipe (astm a335) manufacturers and suppliers in China. We warmly welcome you to buy or wholesale cheap chrome moly pipe (astm a335) in stock here from our factory. All customized products are with high quality and competitive price. For free sample, contact us now.

ASTM A335 P5 Pipe, ASTM A335 P22 Pipe, ASTM A691 1 1 4CR Pipe