Chemical Properties %
/ | Grade | C, max |
Mn, max |
P, max |
S, max |
Cu*, max |
Ni*, max |
Cr*, max |
Mo*, max |
V*, max |
Type S (Seamless) | A | 0.25 | 0.95 | 0.05 | 0.05 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 |
B | 0.3 | 1.2 | 0.05 | 0.05 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 | |
Type E (Electric-resistance Welded) | A | 0.25 | 0.95 | 0.05 | 0.05 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 |
B | 0.3 | 1.2 | 0.05 | 0.05 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 | |
Type F (Furnace-welded) | A | 0.3 | 1.2 | 0.05 | 0.05 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 |
*The total composition for these five elements shall not exceed 1.00%
Mechanical Properties
Grade A | Grade B | |
Tensile Strength, min., psi, (MPa) | 48,000 (330) | 60,000 (415) |
Yield Strength, min., psi, (MPa) | 30,000 (205) | 35,000 (240) |