Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of Carbon Steel Round Pipe Manufacturer & Supplier | ASTM A53, A106, API 5L Carbon Steel Pipe in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
Leading carbon steel round pipe manufacturer and exporter supplying ASTM A53, ASTM A106, API 5L, EN, DIN and JIS carbon steel pipes. Available in seamless and welded types with custom sizes, cutting services, third-party inspection, and global delivery. Request a quote today.
01
High Quality
02
Advanced Equipment
03
Professional Team
04
Custom Service
Carbon Steel Round Pipe Overview
Carbon Steel Round Pipe is one of the most widely used industrial piping materials for fluid transportation, structural engineering, mechanical fabrication, energy infrastructure, and construction projects.
Manufactured from premium carbon steel billets and coils, carbon steel pipes offer an outstanding combination of mechanical strength, weldability, pressure resistance, and economic efficiency.
As a professional carbon steel pipe manufacturer, Xi'an Dongmeng Group Co., Ltd supplies seamless carbon steel pipes, ERW pipes, LSAW pipes, and SSAW pipes in accordance with ASTM A53, ASTM A106, API 5L, EN 10219, and EN 10210 standards.
Our products are extensively exported to North America, South America, Europe, the Middle East, Southeast Asia, and Africa for oil and gas transmission systems, water pipelines, industrial plants, structural steel projects, and infrastructure developments.
Chemical Composition
ASTM A53 Grade B
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤0.30 |
| Manganese (Mn) | ≤1.20 |
| Phosphorus (P) | ≤0.05 |
| Sulfur (S) | ≤0.045 |
| Copper (Cu) | ≤0.40 |
ASTM A106 Grade B
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤0.30 |
| Manganese (Mn) | 0.29–1.06 |
| Phosphorus (P) | ≤0.035 |
| Sulfur (S) | ≤0.035 |
| Silicon (Si) | ≥0.10 |
Mechanical Properties
| Grade | Yield Strength | Tensile Strength | Elongation |
|---|---|---|---|
| ASTM A53 Gr.B | 240 MPa | 415 MPa | ≥20% |
| ASTM A106 Gr.B | 240 MPa | 415 MPa | ≥20% |
| API 5L Gr.B | 245 MPa | 415 MPa | ≥22% |
| API 5L X52 | 360 MPa | 460 MPa | ≥21% |
| API 5L X65 | 450 MPa | 535 MPa | ≥20% |
Physical Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting Point | 1425-1540°C |
| Thermal Conductivity | 45-60 W/m·K |
| Elastic Modulus | 200 GPa |
| Electrical Resistivity | 1.43×10⁻⁷ Ω·m |
Processing Performance Analysis
Excellent Fabrication Capability
Carbon steel round pipes provide exceptional processing flexibility including:
CNC machining
Cutting
Drilling
Bending
Threading
Grooving
Laser processing
Structural fabrication
The material exhibits stable dimensional performance and low processing costs, making it ideal for large-volume engineering projects.
Welding Performance Analysis
Outstanding Weldability for Industrial Fabrication
Carbon steel pipes are highly suitable for:
TIG Welding
MIG Welding
SMAW Welding
SAW Welding
Automatic Welding Systems
Benefits include:
Low cracking tendency
Strong weld joints
Easy field installation
Reduced fabrication costs
Excellent structural integrity
Corrosion Resistance Analysis
Reliable Protection with Surface Treatments
While carbon steel naturally oxidizes in aggressive environments, corrosion resistance can be significantly improved through:
Available Surface Finishes
Black Painted
Varnished
Oiled
Hot Dip Galvanized
3PE Coating
FBE Coating
Epoxy Coating
Coal Tar Epoxy
These solutions extend service life in:
Offshore environments
Underground pipelines
Municipal water systems
Chemical facilities
Applications by Industry
Oil & Gas Industry
Transmission pipelines
Gathering systems
Refineries
Petrochemical facilities
Construction Industry
Structural columns
Building frameworks
Scaffolding systems
Steel structures
Water Treatment Industry
Water transportation
Irrigation systems
Municipal pipelines
Pump stations
Power Generation Industry
Boiler systems
Steam transportation
Cooling water systems
Energy infrastructure
Mechanical Engineering
Machinery frames
Equipment supports
Fabricated assemblies
Industrial platforms
Infrastructure Projects
Bridges
Airports
Highways
Tunnels
Urban development
Carbon Steel Round Pipe Specifications
| OD (mm) | Wall Thickness (mm) | Standard |
|---|---|---|
| 10.3 | 1.24-3.73 | ASTM A53 |
| 21.3 | 1.65-5.54 | ASTM A53 |
| 33.4 | 2.77-7.11 | ASTM A53 |
| 60.3 | 2.77-11.07 | ASTM A53 |
| 114.3 | 3.05-17.12 | ASTM A106 |
| 168.3 | 4.78-21.95 | API 5L |
| 219.1 | 5.54-23.01 | API 5L |
| 323.9 | 6.35-25.40 | API 5L |
| 406.4 | 6.35-31.75 | API 5L |
| 3048 | Custom | Project Pipe |
Available Schedules
SCH10
SCH20
SCH30
SCH40
SCH60
SCH80
SCH100
SCH120
SCH140
SCH160
XXS
Standards & Specifications
ASTM Standards
ASTM A53
ASTM A106
ASTM A333
ASTM A500
API Standards
API 5L
API 5CT
European Standards
EN 10210
EN 10219
DIN Standards
DIN 1629
DIN 17175
JIS Standards
JIS G3454
JIS G3455
JIS G3456
Manufacturing Capability
Xi'an Dongmeng Group Co., Ltd maintains advanced production facilities for carbon steel pipe manufacturing.
Production Capacity
Seamless Pipe Production Line
ERW Pipe Production Line
LSAW Pipe Production Line
SSAW Pipe Production Line
Automatic Hydrostatic Testing
Ultrasonic Testing Systems
Annual Production Capacity
More than 500,000 metric tons.
Export Markets
USA
Canada
Mexico
Brazil
Chile
UAE
Saudi Arabia
Vietnam
Australia
South Africa
Inspection & Quality Assurance
Every batch of carbon steel round pipe undergoes strict inspection procedures.
Incoming Raw Material Inspection
Chemical Analysis
Spectrometer Testing
Material Traceability
Production Inspection
Dimension Inspection
Wall Thickness Inspection
Straightness Inspection
Final Inspection
Hydrostatic Test
Ultrasonic Test (UT)
Eddy Current Test (ET)
PMI Testing
Third-Party Inspection
Certificates Available
EN 10204 3.1
Mill Test Certificate (MTC)
SGS
BV
TUV
ABS
DNV
Packaging & Shipping
Export Packaging
Steel Strapping
Waterproof Wrapping
Plastic End Caps
Wooden Cases
Steel Frames
Seaworthy Packaging
Shipping Methods
Container Loading
Bulk Vessel
Break Bulk Shipment
Project Cargo
Delivery Time
Stock Sizes: 3-7 Days
Production Orders: 10-25 Days
Why Choose Us
Professional Carbon Steel Pipe Manufacturer
Factory Direct Supply
Competitive pricing without trading intermediaries.
Full Range of Standards
ASTM, API, EN, DIN, and JIS compliance.
Custom Processing Services
Cutting, beveling, threading, coating, and fabrication.
Strict Quality Control
100% traceability and comprehensive testing.
Global Export Experience
Supplying industrial projects in over 80 countries.
Fast Response
Professional engineering and sales support within 24 hours.
FAQ
What is the difference between ASTM A53 and ASTM A106 pipe?
ASTM A53 is commonly used for structural and low-pressure applications, while ASTM A106 is designed for high-temperature and high-pressure service.
Can you supply seamless and welded pipes?
Yes. We supply seamless, ERW, LSAW, and SSAW carbon steel pipes.
Do you provide Mill Test Certificates?
Yes. EN 10204 3.1 MTC is available for every shipment.
Can you provide third-party inspection?
Yes. SGS, BV, TUV, DNV, and customer-designated inspections are available.
What pipe schedules do you offer?
SCH10, SCH20, SCH30, SCH40, SCH60, SCH80, SCH100, SCH120, SCH140, SCH160, and XXS.
What coatings are available?
Black painting, galvanized, FBE, 3PE, epoxy, and custom coatings.
Can pipes be cut to custom lengths?
Yes. Custom cutting services are available according to project requirements.
What is your MOQ?
Standard sizes can be supplied from small trial orders to full container quantities.
Which countries do you export to?
We export worldwide, including North America, Europe, the Middle East, Southeast Asia, Africa, and South America.
How quickly can you provide a quotation?
Most quotations are provided within 12-24 hours.
Contact Us
Request a Free Quote for Carbon Steel Round Pipe
Xi'an Dongmeng Group Co., Ltd
Phone / WhatsApp / WeChat: +8615769214734
Email: office@dongmjd.com
Products: Seamless Carbon Steel Pipe, ERW Pipe, API 5L Pipe, ASTM A53 Pipe, ASTM A106 Pipe, Structural Steel Pipe
Service: OEM Manufacturing, Custom Sizes, Third-Party Inspection, Global Export
Hot Tags: Carbon Steel Round Pipe Manufacturer & Supplier | ASTM A53, A106, API 5L Carbon Steel Pipe, China Carbon Steel Round Pipe Manufacturer & Supplier | ASTM A53, A106, API 5L Carbon Steel Pipe manufacturers, suppliers, factory, S355 J 2H
