A533 Grade A is a ASTM standard low-alloy steel plate known for its high strength, excellent low-temperature impact toughness, and good weldability, typically used in the construction of boilers, pressure vessels, and other heavy-duty equipment that operate in cryogenic or high-pressure environments. While the Grade B is more common for higher pressure/temperature applications, Grade A offers a lower strength option suitable for less demanding or low-pressure piping.
ASTM A533 Gr A steel chemical composition :
|
GradeA |
C≤ |
Mn |
P≤ |
S≤ |
Si |
Ni |
Mo |
||||
|
Heat |
Product |
Heat |
Product |
Heat |
Product |
Heat |
Product |
||||
|
A533 Gr A |
0.25 |
1.15~1.50 |
1.07~1.62 |
0.035 |
0.035 |
0.15~0.40 |
0.13~0.45 |
- |
- |
0.45~0.60 |
0.41~0.64 |
ASTM A533 Gr A steel Mechanical properties:
|
Grade A |
Yield strength |
tensile strength |
temperature |
Elongation |
|
quenching and tempering |
690～825 |
≥585 |
-196℃ |
≥0.38 |
|
quenching and tempering |
690～825 |
≥585 |
-170℃ |
≥0.38 |
ASTM A533 Gr A Steel Application
ASTM A533 GRACL2 Pressure Vessel And Boiler Steel Plate are used in Pressure Vessel, Boiler, Storage Tanks and Heat Exchanger in Oil, Gas Project.
