ASTM A331 Grade 5046 Introduce
The main strength of ASTM A331 Grade 5046 is its high tensile strength and toughness, as well as its excellent wear resistance. The steel has a higher yield strength than most other alloy steels and therefore can withstand a greater amount of stress before reaching its ultimate strength limit. The combination of high tensile strength and good wear resistance make ASTM A331 Grade 5046 a good choice for use in high-stress applications such as automotive components, valves and shafts.
Smelting temperature:1568°C - 1381°C
Application:Cold rolled alloy steel rod
ASTM A331 Grade 5046 Material Chemical Composition
The chemical composition of the ASTM A331 Grade 5046 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Chromium (Cr) | 0.2000 | 0.3500 |
| PhOsphorus (P) | - | 0.0350 |
| Sulfur (S) | - | 0.0400 |
| Manganese (Mn) | 0.7500 | 1.0000 |
| Silicon (Si) | 0.1500 | 0.3500 |
| Carbon (C) | 0.4300 | 0.4800 |
ASTM A331 Grade 5046 Material Mechanical Properties
The mechanical properties of the ASTM A331 Grade 5046 steel are as follows:
| YieldRp0.2 | ≤ 522 (MPa) |
| TeileRm | ≤ 241 (MPa) |
| ImpactKV/Ku | 21(J) |
| ElongationA | 34% |
| Reduction in cross section on fractureZ | 11% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 333 |
ASTM A331 Grade 5046 Material Thermal Properties
The thermal performance parameters of the ASTM A331 Grade 5046 steel are as follows:
| Temperature (°C) | 21 | 942 | 153 |
| Modulus of elasticity (GPa) | - | 693 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 41 |
| Thermal conductivity (W/m·°C) | - | 12.3 | 43.2 |
| Specific thermal capacity (J/kg·°C) | - | 421 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.41 | - | - |
| Deity (kg/dm³) | - | - | 311 |
| Poisson’s coefficient, ν | - | - | 221 |