ASTM A335 P12 comprises 0.3-0.5% carbon content and 1-2% manganese content with trace amounts of other elements such as chromium and vanadium. The composition can vary slightly depending on the application or manufacturer’s desired outcome.
C, % | Mn, % | P, % | S, % | Si, % | Cr, % | Mo, % |
0.015 max | 0.30-0.61 | 0.025 max | 0.025 max | 0.50 max | 0.80-1.25 | 0.44-0.65 |
ASTM A335 P12 includes corrosion resistance due to its high chromium content (13%) and good weldability due to its low carbon content (0.3-0.5%). It also has good creep resistance at high temperatures because of its high manganese content (1-2%).
The mechanical properties of ASTM A335 P12 include a yield strength range between 200MPa and 600MPa with an ultimate tensile strength of 650MPa to 800MPa. Additionally, it has good abrasion resistance due to its hardness range between 28 HRC and 32 HRC.
Tensile Strength, MPa | Yield Strength, MPa | Elongation, % |
415 min | 205 min | 30 min |