ASTM A106 Seamless Steel Pipe Specifications
ASTM A106 pipe (also covered in ASME specifications as S/A 106) is the standard specification for seamless carbon steel pipe for high-temperature service. Most common uses are in refineries and plants when gasses or fluids are transported at high temperatures and pressures. Federal Steel Supply is a world leader in the supply of A106 / SA 106 pipe and stocks a full range of grades B/C in a size rage of NPS 1/8″ to NPS 48″, with nominal (average) wall thickness as given in ANSI B36.10. Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification*. Pipe ordered under this specification shall be suitable for bending, for flanging, for welding, and for similar forming operations. A full range of A106 stock is available in Schedules 10 through 160, STD, XS, XXS. Unscheduled wall thicknesses available up to 4 inches.
Federal Steel Supply stocks a full range of A106 seamless carbon steel pipe.
Grades B/C
Sizes
NPS 1/8″ to NPS 48”
Wall thickness: Schedules 10 through 160, STD, XS, XXS.
*Commonly requested unscheduled walls up to 4” and certified minimum wall items
Chemical Properties %
| | C, max. | Mn | P, max | S, max | Si, min | Cr, max | Cu, max | Mo, max | Ni, max | V, max |
| Grade A * | 0.25 | 0.27 – 0.93 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
| Grade B | 0.30 | 0.29 – 1.06 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
| Grade C | 0.35 | 0.29 – 1.06 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
*For each reduction of 0.01% below the specified carbon maximum, an increase of 0.06% manganese above the specified maximum will be permitted up to a maximum of 1.35%.
Mechanical Properties
| | Grade A | Grade B | Grade C |
| Tensile Strength, min., psi, (MPa) | 48,000 (330) | 60,000 (415) | 70,000 (485) |
| Yield Strength, min., psi, (MPa) | 30,000 (205) | 35,000 (240) | 40,000 (275) |
(Note: This is summarized information from ASME Specification A106. Please refer to the specific Standard or Specification or contact us for more details.)
