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Description: Pressure Vessel Plate of ASTM A533 covers one type od manganese-molybdenum and four types of manganese-molybdenun-nickel alloy steel for use in the quenched and tenpered condition for the construction of welded pressure vesslels. ASTM A533 Steel Plates is ...
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Pressure Vessel Plate of ASTM A533 covers one type od manganese-molybdenum and four types of manganese-molybdenun-nickel alloy steel for use in the quenched and tenpered condition for the construction of welded pressure vesslels. ASTM A533 Steel Plates is available in 5 grades: Grade A , Grade B, Grade C，Grade D and Grade E, the material is also available in three classes: Class 1, Class2, Class3. The minimum nominal thickness of plates of all classes is 0.25 in.[6.5mm].
The maximum thickness of Class 1 and Class 2 plates is limited only by the capacity of the composition to meet the specified mechanical property requirement; however, current practice normally limits the maximum thickness to 12 in.[300mm] for Types A through D and to 7 in.[180mm] for Type E.
The maximum nominal thickness of plates of Class 3 plates is 2 1/2 in. [65mm] for Types A through D and 2 in.[50mm] for Type [E].
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.
ASTM A533 steel chemical components:
| Composition | heat analysis/ product analysis |
Grade A | Grade B | Grade C | Grade D | Grade E |
|---|---|---|---|---|---|---|
| C | 0.25 | 0.25 | 0.25 | 0.25 | 0.2 | |
| Mn | heat analysis | 1.15~1.50 | 1.15~1.50 | 1.15~1.50 | 1.15~1.50 | 1.15~1.07 |
| 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 | 0.02 | |
| S | 0.025 | 0.025 | 0.025 | 0.025 | 0.015 | |
| Si | heat analysis | 0.15~0.40 | 0.15~0.40 | 0.15~0.40 | 0.15~0.40 | 0.15~0.40 |
| product analysis | 0.13~0.45 | 0.13~0.45 | 0.13~0.45 | 0.13~0.45 | 0.13~0.45 | |
| Mo | heat analysis | 0.45~0.60 | 0.45~0.60 | 0.45~0.60 | 0.45~0.60 | 0.45~0.60 |
| product analysis | 0.41~0.64 | 0.41~0.64 | 0.41~0.64 | 0.41~0.64 | 0.41~0.64 | |
| Ni | heat analysis | - | 0.40~0.70 | 0.70~1.00 | 0.20~0.40 | 0.60~1.00 |
| product analysis | - | 0.37~0.73 | 0.67~1.03 | 0.17~0.43 | 0.57~1.03 | |
| Cr | heat analysis | - | - | - | - | 0.6 |
| product analysis | - | - | - | - | 0.64 |
ASTM A533 steel mechanical property:
| ASTM A533 | Class 1 | Class 2 | Class 3 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| ksi (Mpa) | ksi (Mpa) | ksi (Mpa) | |||||||
| Yield strength (Mpa) | 80-100 [550~690] | 90-115 [620~795] | 100-125 [690~860] | ||||||
| Tensile strength （Mpa） | 50 [345] | 70 [485] | 83 [570] | ||||||
| Elongation minimum gauge length 2in.[50mm]（%） | 18 | 16 | 16 | ||||||
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