ASTM A204 Grade B ASTM A204/A204M Boiler Steel Plate
vessel steel plate Product Introduction
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Application: Molybdenum alloy steel plate for pressure vessel.
Heat treated: 1985°C - 1749°C.
pressure vessel plate Product Details
ASTM A204 Grade B ASTM A204/A204M Chemical Element
ASTM A204 Grade B ASTM A204/A204M is an alloy of iron and carbon and other elements. Because of its high tensile strength and low cost, it is a major component used in buildings, infrastructure, tools, ships, automobiles, machines, appliances. The ASTM A204 Grade B ASTM A204/A204M chemical composition determined by ladle analysis shall comply with the specified values of the following table.
| Element | Min | Max | Similar |
|---|---|---|---|
| Mo | 0.4500 | 0.6000 | - |
| P | - | 0.0350 | - |
| S | - | 0.0350 | - |
| Mn | - | 0.9000 | - |
| Si | 0.1500 | 0.4000 | - |
| C | - | 0.2700 | - |
| Si | 0.1300 | 0.4500 | - |
| S | - | 0.0250 | - |
| P | - | 0.0250 | - |
| Mo | 0.4100 | 0.6400 | - |
| Mn | - | 0.9800 | - |
| C | - | 0.2000 | - |
ASTM A204 Grade B ASTM A204/A204M Mechanical Properties
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 534 (≥) | 523 (≥) | 42 | 13 | 21 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 113 |
ASTM A204 Grade B ASTM A204/A204M Physical Properties
The ASTM A204 Grade B ASTM A204/A204M material physical properties shall comply with the values given in the following table.
| Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson's coefficient, ν |
|---|---|---|---|---|---|---|---|
| 41 | - | - | 0.21 | - | |||
| 598 | 259 | - | 42.3 | 434 | - | ||
| 363 | - | 11 | 13.2 | 444 | 412 |
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