ASTM A533/A533M A533 Grade B Class 3 Introduce
There are nine grades of ASTM A533/A533M steel plate, namely: A533 GRADE A, A533 GRADE B, A533 GRADE C, A533 GRADE D, A533 GRADE E, A533 GRADE F, A533 GRADE H, A533 GRADE J, and A533 GRADE K. Each grade can only be used in the specific pressure vessel service environment.
Smelting temperature:1758°C - 1564°C
Application:Pressure vessel plates, alloy steel, quenched and tempered, manganese, molybdenum and manganese molybdenum nickel
ASTM A533/A533M A533 Grade B Class 3 Material Chemical Composition
The chemical composition of the ASTM A533/A533M A533 Grade B Class 3 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Molybdenum (Mo) | 0.4500 | 0.6000 |
| Nickel (Ni) | 0.4000 | 0.7000 |
| PhOsphorus (P) | - | 0.0350 |
| Sulfur (S) | - | 0.0350 |
| Manganese (Mn) | 1.1500 | 1.5000 |
| Silicon (Si) | 0.1500 | 0.4000 |
| Carbon (C) | - | 0.2500 |
| Silicon (Si) | 0.1300 | 0.4500 |
| Sulfur (S) | - | 0.0250 |
| PhOsphorus (P) | - | 0.0250 |
| Nickel (Ni) | 0.3700 | 0.7300 |
| Molybdenum (Mo) | 0.4100 | 0.6400 |
| Manganese (Mn) | 1.0700 | 1.5000 |
ASTM A533/A533M A533 Grade B Class 3 Material Mechanical Properties
The ASTM A533/A533M steel standard is a set of specifications that define the various requirements and properties of steel used in the construction and manufacturing industry. Developed by the American Society for Testing and Materials (ASTM), the ASTM A533/A533M standard provides valuable guidance for the selection and use of the right steel for the right purpose. The standard applies to both Grade A and Grade B steel, and covers all aspects of their production, use, and performance in order to ensure quality and long-term performance.
The mechanical properties of the ASTM A533/A533M A533 Grade B Class 3 steel are as follows:
| YieldRp0.2 | ≤ 911 (MPa) |
| TeileRm | ≤ 923 (MPa) |
| ImpactKV/Ku | 31(J) |
| ElongationA | 31% |
| Reduction in cross section on fractureZ | 33% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 232 |
ASTM A533/A533M A533 Grade B Class 3 Material Thermal Properties
The thermal performance parameters of the ASTM A533/A533M A533 Grade B Class 3 steel are as follows:
| Temperature (°C) | 13 | 148 | 521 |
| Modulus of elasticity (GPa) | - | 488 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 42 |
| Thermal conductivity (W/m·°C) | - | 24.3 | 42.2 |
| Specific thermal capacity (J/kg·°C) | - | 413 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.24 | - | - |
| Deity (kg/dm³) | - | - | 423 |
| Poisson’s coefficient, ν | - | - | 211 |
ASTM A533/A533M A533 Grade B Class 3 Material Machining Technology
The machinability of ASTM A533/A533M A533 Grade B Class 3 steel is considerably dependent on its composition. Generally, this type of steel can be machined with good results. It can be machined with relative ease using conventional cutting tools, and its machinability can be enhanced by proper selection of tooling and machining parameters. When machining ASTM A533/A533M A533 Grade B Class 3 steel, it is best to use high-speed steel tools that are specifically designed for steels with similar compositions. This will help to ensure that the resulting cuts are clean and accurate.