ASTM A513/A513M Grade MT1020 Introduce
ASTM A513/A513M Grade MT1020 steel is a grade of steel that is widely used for its thermal protection and superior strength. It is known for its ability to resist extreme temperatures and fluctuations that would normally cause more brittle metals to become damaged. Additionally, this grade of steel is commonly used in the automotive industry due to its thermal protection in extreme temperatures, as well as its strength and resistance to warping or bending.
Smelting temperature:1535°C - 1448°C
Application:Resistance welding carbon steel and alloy steel mechanical steel pipe
ASTM A513/A513M Grade MT1020 Material Chemical Composition
The chemical composition of the ASTM A513/A513M Grade MT1020 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Carbon (C) | 0.1500 | 0.2500 |
| Manganese (Mn) | 0.3000 | 0.6000 |
| PhOsphorus (P) | - | 0.0350 |
| Sulfur (S) | - | 0.0350 |
ASTM A513/A513M Grade MT1020 Material Mechanical Properties
The mechanical properties of the ASTM A513/A513M Grade MT1020 steel are as follows:
| YieldRp0.2 | ≤ 869 (MPa) |
| TeileRm | ≤ 292 (MPa) |
| ImpactKV/Ku | 41(J) |
| ElongationA | 13% |
| Reduction in cross section on fractureZ | 21% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 241 |
ASTM A513/A513M Grade MT1020 Material Thermal Properties
The thermal performance parameters of the ASTM A513/A513M Grade MT1020 steel are as follows:
| Temperature (°C) | 43 | 889 | 252 |
| Modulus of elasticity (GPa) | - | 435 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 32 |
| Thermal conductivity (W/m·°C) | - | 22.3 | 11.2 |
| Specific thermal capacity (J/kg·°C) | - | 122 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.24 | - | - |
| Deity (kg/dm³) | - | - | 211 |
| Poisson’s coefficient, ν | - | - | 242 |