Type: Carbon steel pipe, Seamless carbon steel pipe, Seamless pressure pipe
Specification: OD:1/2-20 inch(21.3-1219mm). WT: 1.24-25.4mm or Customized.
Standard: ASTM A106, ASME SA106 (Nace MR0175 also applicable for H2S environment).
Grades: A, B, C
End: Plain end, Beveled, Threaded
Coating: Black paint, Varnished, Epoxy Coating, Polyethylene Coating, FBE, 3PE, CRA Clad and Lined.
What is ASTM A106 steel pipe?
ASTM A106 Seamless Pressure Pipe (also known as ASME SA106 pipe) covers seamless carbon steel nominal wall pipe for high-temperature service. Suitable for bending, flagging, and similar forming operations. This specification covers seamless carbon steel pipe for high-temperature service. A106 seamless carbon steel pipe shall be suitable for bending, flanging, and similar forming operations, and for welding. When the steel is to be welded, it is presupposed that a welding procedure suitable to the grade of steel and intended use or service will be utilized. Supplementary requirements of an optional nature are provided for seamless pipe intended for use in applications where a superior grade of pipe is required. Applications include high-pressure vessels, nozzles, and critical applications requiring the highest material integrity. A106 seamless carbon steel pipe is easily weldable using various welding procedures. This makes it a preferred choice for pressure piping associated with various Oil, Gas, and Industrial applications. Seamless pipe is also very common in petrochemical industries for carrying high-pressure fluid.
Chemical Requirements
| Grado | Grade A | Grade B | Grade C |
| Carbon max. % | 0.25 | 0.30* | 0.35* |
| *Manganese % | 0.27 to 0.93 | *0.29 to 1.06 | *0.29 to 1.06 |
| Phosphorous, max. % | 0.035 | 0.035 | 0.035 |
| Sulfur, max. % | 0.035 | 0.035 | 0.035 |
| Silicon, min.% | 0.1 | 0.1 | 0.1 |
| Chrome, max. % | 0.4 | 0.4 | 0.4 |
| Copper, max. % | 0.4 | 0.4 | 0.4 |
| Molybdenum, max. % | 0.15 | 0.15 | 0.15 |
| Nickel, max. % | 0.4 | 0.4 | 0.4 |
| Vanadium, max.% | 0.08 | 0.08 | 0.08 |
Note: Total of Cr, Cu, Mo, Ni, and V shall not exceed 1%
Tensile Requirements
| Seamless | |||
| Grade A | Grade B | Grade C | |
| Tensile Strength, min., psi | 48,000 | 60,000 | 70,000 |
| Yield Strength, min., psi | 30,000 | 35,000 | 40,000 |
