A204 Grade C material is a molybdenum-alloy steel plate, intended particularly for welded boilers and other pressure vessels.
ASTM A285 Grade C steel is a kind of carbon steel plates of low- and intermediate-tensile strengths which may be made by killed, semi-killed, capped, or rimmed steel.
Material |
C |
Si |
Mn |
P |
S |
Mo |
A204 Grade C |
0.23-0.28 |
0.15-0.40 |
0.90 max. |
0.025 max. |
0.025 max. |
0.45–0.60 |
A285 Grade C |
0.28 max. |
- |
0.90 max |
0.025 max. |
0.025 max. |
- |
ASTM A204 Grade C steel mechanical properties
Item |
A204 Grade C |
Tensile strength, kis [MPa] |
75-95 [515-655] |
Yield strength, min, kis [MPa] |
43 [295] |
Elongation in 8 in. [200 mm], min, % |
16 |
Elongation in 2 in. [50 mm], min, % |
20 |
ASTM A285 Grade C steel mechanical properties
Material |
Tensile strength ,MPa |
Yield strength, MPa |
Elongation in 8 in. [200 mm],A% |
Elongation in 2 in. [50 mm], A% |
A285 GrC |
380-515 |
≥205 |
≥23 |
≥27 |
Katalor as a pressure vessel plates supplier, can supply carbon steel and A204 Grade C alloy steel for LNG tanks, pressure vessels, boilers and heat exchangers.