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Eastern Steel Manufacturing Co.,Ltd is a leading manufacturer and distributor of seamless steel pipe, welded steel pipe, OCTG products and fittings. We supply first-step processing, semi-finished parts and finished parts to help our clients meet fabrication requirements beyond their capacity or to improve operations by moving forward the pre-production processing.
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Eastern Steel Manufacturing Co.,Ltd not only improve product production and sales services, but also provide additional value-added services. As long as you need, we can complete your specific needs together.
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Many years of large-scale project experience in various fields（Oil & Gas, Construction, Power Energy, Marine & Offshore, Water Treatment, Exploration & Drilling Services, Pipeline & Petrochemical etc.）, professional project team is responsible from receiving until the end of the project.
ASTM A53 Grade B seamless steel pipe is a carbon steel pipe covered by ASTM A53/A53M. It is classified as Type S and Grade B, with minimum tensile and yield strengths of 415 MPa (60,000 psi) and 240 MPa (35,000 psi), respectively.
This page summarizes the key specifications, mechanical properties, dimensions and applications of ASTM A53 Grade B seamless steel pipe.
ASTM A53 Grade B seamless pipe is designated as Type S, meaning it is manufactured as seamless pipe under ASTM A53/A53M.
ASTM A53 Grade B Seamless — Technical Parameters
| Technical Parameter | Specification |
|---|---|
| Standard | ASTM A53/A53M |
| Type | Type S (Seamless) |
| Grade | Grade B |
| Product | Seamless carbon steel pipe |
| Tensile Strength, Min. | 415 MPa (60,000 psi) |
| Yield Strength, Min. | 240 MPa (35,000 psi) |
ASTM A106 — Mechanical Property Comparison (Grade B vs. Grade A)
| Mechanical Property | Grade B | Grade A |
|---|---|---|
| Tensile Strength, Min. | 415 MPa (60,000 psi) | 330 MPa (48,000 psi) |
| Yield Strength, Min. | 240 MPa (35,000 psi) | 205 MPa (30,000 psi) |
Elongation According to pipe dimensions and test requirements According to pipe dimensions and test requirements
ASTM A53 Grade B seamless pipe is specified by NPS, outside diameter and wall thickness, with dimensions selected according to the required pipe size and schedule.
For detailed NPS, DN, outside diameter, wall thickness, schedule and weight data, see our Seamless Steel Pipe Size Chart.
ASTM A53 Grade B seamless pipe is specified for mechanical and pressure applications and is also used for ordinary steam, water, gas and air lines.
Common applications include:
The appropriate pipe size, wall thickness and service conditions should be confirmed against the project requirements and applicable codes.
ASTM A53 Grade B and ASTM A106 Grade B are both carbon steel pipe specifications, but they cover different service requirements. ASTM A53 is intended for mechanical and pressure applications and ordinary steam, water, gas and air lines, while ASTM A106 covers seamless carbon steel pipe for high-temperature service.
ASTM A53 Grade B vs. ASTM A106 Grade B — Feature Comparison
| Feature | ASTM A53 Grade B | ASTM A106 Grade B |
|---|---|---|
| Product Type | Seamless and welded pipe | Seamless pipe |
| Primary Service | Mechanical and pressure applications | High-temperature service |
| Common Uses | Water, gas, steam and air lines | High-temperature process piping |
ASTM A106 vs. A53 Seamless Pipe
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