ASTM A533 is Standard Specification for Pressure Vessel Plates, Alloy Steel, Quenched and Tempered, Manganese-Molybdenum and Manganese-Molybdenum-Nickel ASTM A533 specification covers manganese-molybdenum and manganese-molybdenum-nickel alloy steel plates for use in welded pressure vessels.
The maximum thickness of ASTM A533 Grade D Class3 plates is 21/2 in. [65 mm] for Types A through D and 2 in. [50 mm] for Type E.
ASTM A533 the minimum nominal thickness of plates of all classes is 0.25 in. [6.5 mm].
ASTM A533 specification covers manganese-molybdenum and manganese-molybdenum-nickel alloy steel plates for use in welded pressure vessels. The steel materials shall be killed and shall conform to the required values of fine austenitic grain and shall also be heat treated. The steel specimens shall undergo heat analysis and product analysis and shall conform to the chemical requirements for carbon, manganese, phosphorus, sulfur, silicon, molybdenum, and nickel. Tension tests shall be performed wherein the steel specimens shall conform to the required values of tensile strength, yield strength, and elongation.
ASTM A533 Grade D Class3 chemical composition:
|
Grade |
C max |
Mn |
P max |
S max |
Si |
Mo |
Ni |
|
Type D |
0.25 |
1.07-1.62 |
0.025 |
0.025 |
0.13-0.45 |
0.41-0.64 |
0.17-0.43 |
ASTM A533 Grade D Class3 mechanical properties；
|
Grade |
Tensile Strength(MPa) ksi |
Yield Strength(MPa) ksi MIN |
% Elongation 2in. (50mm) MIN |
|
Class3 |
(690-860) 80-100 |
(570) 83 |
16 |
ASTM A533 Grade D Class3 steel plates covered by this specification are often used in the beltline region of nuclear reactor vessels where the material properties may be affected by high levels of radiation. Appendix X1 provides some information pertinent to this usage.
