A533 Pressure Vessel Steel Plate DescriptionASTM A533 Boiler vessel plates are manganese-molybdenum and manganese-molybdenum-nickel alloy steel plates suitable for welding pressure vessels. Often with quenching and tempering heat treatment, that is, quenching and tempering state supply. ASTM A533 bo
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Description
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A533 Pressure Vessel Steel Plate Description
ASTM A533 Boiler vessel plates are manganese-molybdenum and manganese-molybdenum-nickel alloy steel plates suitable for welding pressure vessels. Often with quenching and tempering heat treatment, that is, quenching and tempering state supply. ASTM A533 boiler vessel steel is available in five different strength grades: Class A, Class B, Class C, Class D, and Class E. There are three levels of each category: level 1, level 2 and level 3.
Rolling, Annealing, Quenching, Tempered or Standard
Surface Process
Ordinary, Wire Drawing, Laminated Film
Chemical Composition
A533
Class A
Class B
Class C
Class D
Class E
C
0.25
0.25
0.25
0.25
0.20
Mn
Smelting Analysis
1.15-1.50
1.15-1.50
1.15-1.50
1.15-1.50
1.15-1.70
Finished Product Analysis
1.07-1.62
1.07-1.62
1.07-1.62
1.07-1.62
1.04-1.84
P
0.025
0.025
0.025
0.025
0.020
S
0.025
0.025
0.025
0.025
0.015
Si
Smelting Analysis
0.15-0.40
0.15-0.40
0.15-0.40
0.15-0.40
0.15-0.40
Finished Product Analysis
0.13-0.45
0.13-0.45
0.13-0.45
0.13-0.45
0.13-0.45
Mo
Smelting Analysis
0.45-0.60
0.45-0.60
0.45-0.60
0.45-0.60
0.25-0.60
Finished Product Analysis
0.41-0.64
0.41-0.64
0.41-0.64
0.41-0.64
0.21-0.64
Ni
Smelting Analysis
-
0.40-0.70
0.70-1.00
0.20-0.40
0.60-1.00
Finished Product Analysis
-
0.37-0.73
0.67-1.03
0.17-0.43
0.57-1.03
Cr
Smelting Analysis
-
-
-
-
0.60
Finished Product Analysis
-
-
-
-
0.64
Mechanical Properties
A533
Tensile Strength Ksi(MPa)
Yield Strength Ksi(MPa)
Elongation Gauge Length 2in.[50mm],%
Grade1
80-100[550-690]
50[345]
18
Grade2
90-115[620-795]
70[485]
16
Grade3
100-125[690-860]
83[570]
16
Physical Performance
Physical Performance
Metric
Imperial
Density
7.7-8.03 g/cm3
0.278-0.290 lb/in3
Scope of Application
ASTM A533 boiler vessel plate has excellent low temperature impact toughness and mechanical properties, and is usually used under low temperature conditions. ASTM A533 boiler vessel plate is widely used in low temperature separation processing, liquefied gas storage and other fields, such as large vacuum low temperature liquefied natural gas (LNG) storage equipment.
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