A53B ERW Steel Pipe manufactured by JS FITTINGS meets ASTM A53/A53M standards with precise Electric Resistance Welding technology. Our Grade B carbon steel pipes deliver minimum yield strength of 240 MPa and tensile strength of 415 MPa for reliable performance in water transmission, plumbing, and structural applications. With 42 years of manufacturing expertise, our 30,000-ton annual capacity ensures consistent supply for large-scale projects. Available in NPS 1/8 to NPS 26 with Schedule 40/80 options in black or hot-dipped galvanized finishes.

Dual-Standard Compliance
Your projects benefit from ASTM A53 and API 5L certified pipes that meet international quality requirements for oil & gas applications.
Precision ERW Manufacturing
High-Frequency Welding technology creates minimal Heat Affected Zone (HAZ), delivering uniform wall thickness and superior dimensional accuracy compared to traditional welding methods.
Enhanced Weldability
Controlled Chemical composition with Carbon max 0.30% and optimized Manganese content ensures excellent welding characteristics for field installation.
Ready-to-Install Processing
Precision cutting services and beveled pipe ends reduce your on-site preparation time and installation costs.
Reliable Supply Chain
30,000-ton production capacity with dedicated logistics network covering Central Asia and Middle East markets ensures timely project deliveries.
|
Parameter |
Specification |
|
Standard |
ASTM A53/A53M, API 5L |
|
Grade |
Grade B |
|
Manufacturing Method |
Electric Resistance Welding (ERW) |
|
Size Range |
NPS 1/8 to NPS 26 |
|
Schedule |
Schedule 40, Schedule 80 |
|
Wall Thickness |
2.77mm - 25.4mm |
|
Length |
6m, 12m, or Custom |
|
End Finish |
Plain End, Beveled End |
|
Surface |
Black, Hot-Dipped Galvanized |
Standards & Certifications
· ASTM A53/A53M - Standard Specification for Pipe, Steel, Black and Hot-Dipped
· API 5L - Line Pipe Specification
· ISO 9001 - Quality Management System
· CE Marking - European Conformity
· GOST-R - Russian Technical Regulations
|
Chemical Element |
Maximum % |
|
Carbon (C) |
0.30 |
|
Manganese (Mn) |
1.20 |
|
Phosphorus (P) |
0.05 |
|
Sulfur (S) |
0.045 |
|
Mechanical Property |
Minimum Value |
|
Yield Strength |
240 MPa (35,000 psi) |
|
Tensile Strength |
415 MPa (60,000 psi) |
|
Elongation |
23% |
Our product meets stringent international standards:
These certifications demonstrate our commitment to delivering high-quality products that meet global industry requirements.








Manufacturing Process
Black Finish: Mill-scale surface suitable for painting or threading applications
Hot-Dipped Galvanized: Zinc coating providing corrosion resistance for outdoor and marine environments
Custom Coatings: Epoxy, polyethylene, or specialized coatings available upon request
· Water transmission and distribution systems
· Plumbing and fire protection systems
· Structural framework and construction
· Industrial process piping
· Oil & gas gathering lines
· Steam and condensate systems
· Mechanical and electrical conduit
Pipes are bundled with steel strapping and protected with waterproof covers. Standard packaging includes pipe caps and detailed material certificates. Our logistics network ensures efficient delivery to Central Asia, Middle East, and global destinations with specialized handling for oil & gas projects.
We provide tailored solutions including custom lengths, special end preparations, threading services, and coating applications. Our engineering team works with your specifications to deliver pipes that meet exact project requirements.
Each production batch undergoes comprehensive testing including chemical analysis, tensile testing, flattening tests, and hydrostatic pressure testing. Our ISO 9001 certified quality system ensures consistent performance across all deliveries.
"The dimensional accuracy of the ERW pipes from JS FITTINGS exceeded our expectations. The beveled ends were precise, making our field welding significantly faster. A reliable partner for our infrastructure projects."
"I am thoroughly impressed with the quality of the seamless pipe fittings provided by JS FITTINGS. Each piece we've received has been meticulously crafted, displaying a standard of workmanship that is truly top-notch."
"JS FITTINGS completed the production ahead of schedule. The delivery was equally impressive – it arrived earlier than anticipated, which greatly helped in keeping our project timeline on track."
Q: What's the difference between Grade A and Grade B pipes?
A: Grade B A53B ERW Steel Pipe offers higher strength with 240 MPa yield strength compared to Grade A's 205 MPa, making it suitable for higher pressure applications.
Q: Can you provide custom lengths?
A: Yes, we manufacture pipes in standard 6m/12m lengths and custom lengths based on your project requirements.
Q: What testing certificates do you provide?
A: We supply Mill Test Certificates, chemical analysis reports, and mechanical property test results with each shipment.
Q: Do you offer threading services?
A: Yes, we provide NPT, BSP, and custom threading services along with precision beveling for welding applications.
Ready to discuss your A53B ERW Steel Pipe requirements? Contact our technical team at admin@jsfittings.com mailto:admin@jsfittings.com for quotes and specifications.

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