ASME SA-556M Grade C2 seamless cold drawn pipe is a seamless steel pipe produced in accordance with the American Society of Mechanical Engineers (ASME) standard SA-556M. This steel pipe is classified as C2, meaning it is suitable for high-temperature service under moderate pressure.
The ASME SA-556M standard specifies the requirements for steel pipe materials, manufacturing, inspection and acceptance to ensure that the quality and performance of steel pipes meet the standards.
ASME SA-556M C2 grade seamless cold drawn pipe is widely used in petrochemical, electric power, metallurgy, shipbuilding and other fields, especially in equipment and pipeline systems that need to withstand high temperatures and pressures.
Technical standard requirements
Chemical composition of SA-556M Grade C2 steel tubes
| Grade | C | Si | Mn | P | S |
| SA-556M C2 | ≤0.30 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 |
Mechanical properties of SA-556M Grade C2 steel tubes
| Mechanical properties | Grade C2 |
| Tensile strength, min, ksi [MPa] | 70 [480] |
| Yield strength, min, ksi [MPa] | 40 [280] |
| Elongation in 2 in. or 50 mm, min, % (longitudinal) | 30 |
| Hardness | HR B 89 |
Manufacture
SA-556M Grade C2 Tubes shall be made by the seamless process and shall be cold drawn.
