ASTM A106 Grade B (A106 Gr.B) seamless pipes are widely used for high-temperature and high-pressure applications in oil, gas, petrochemical, and power generation industries. These carbon steel pipes are known for their excellent mechanical strength, weldability, and reliability, making them the industry standard for boiler, pipeline, and process piping systems.

Key Features

Withstands high temperatures and pressure
Excellent machinability and weldability
Seamless construction ensures leak-proof flow
Compatible with flanging, bending, and forming operations
Supplied with full test certification
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Technical Specifications

Standard: ASTM A106 / ASME SA106
Grade: B
Type: Seamless
Material: Carbon Steel
Wall Thickness: SCH 10 to SCH XXS
Tensile Strength: ≥ 415 MPa (60,000 psi)
Yield Strength: ≥ 240 MPa (35,000 psi)
Manufacturing Process: Hot-finished or cold-drawn
Size Range: OD: 1/2" to 36" (21.3 mm to 914 mm)
Length: Random, fixed, or custom (up to 12 meters)

Applications

Oil & gas refineries
Petrochemical and chemical plants
Power plants and boilers
Heat exchangers and condensers
Structural applications (in select cases)

Supply Condition

Surface Finish: Black-painted, bare, oiled, or galvanized
Ends: Plain, beveled, or threaded
Heat Treatment: Normalized, stress-relieved, or as per customer requirement
Certifications: EN 10204 3.1 / 3.2, NACE compliance (optional)
Testing: Hydrostatic, UT, hardness, impact, chemical & mechanical analysis

Why Choose A106 Gr.B?

Ideal for elevated temperature service (up to 750°F / 400°C)
Meets or exceeds ASME B31.3 and B31.1 piping standards
Globally accepted for critical pipeline and process systems