JIS G4303 SUS 430 Introduce
JIS G4303 SUS 430 is one of the most popular and widely used types of steel in the world. It is known for its excellent thermal properties, These properties include thermal conductivity, thermal diffusivity, Specific Heat Capacity, and Thermal Shock Resistance. Thermal conductivity measures the ability of a material to dissipate heat, while thermal diffusivity measures how quickly heat is conducted through the material. Specific Heat Capacity is the measure of thermal energy required to change the temperature of a given material. Lastly, Thermal Shock Resistance denotes how resistant a material is when exposed to rapid changes in temperature.
Smelting temperature:1738°C - 1169°C
Application:Stainless steel rod
JIS G4303 SUS 430 Material Chemical Composition
The chemical composition of the JIS G4303 SUS 430 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | - | 0.7500 |
| Sulfur (S) | - | 0.0300 |
| PhOsphorus (P) | - | 0.0400 |
| Nickel (Ni) | - | 0.6000 |
| Manganese (Mn) | - | 1.0000 |
| Chromium (Cr) | 16.0000 | 18.0000 |
| Carbon (C) | - | 0.1200 |
| Nickel (Ni) | - | 0.6000 |
| Nickel (Ni) | - | 0.6000 |
JIS G4303 SUS 430 Material Mechanical Properties
The mechanical properties of the JIS G4303 SUS 430 steel are as follows:
| YieldRp0.2 | ≤ 772 (MPa) |
| TeileRm | ≤ 326 (MPa) |
| ImpactKV/Ku | 44(J) |
| ElongationA | 41% |
| Reduction in cross section on fractureZ | 34% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 234 |
JIS G4303 SUS 430 Material Thermal Properties
The thermal performance parameters of the JIS G4303 SUS 430 steel are as follows:
| Temperature (°C) | 13 | 883 | 936 |
| Modulus of elasticity (GPa) | - | 755 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 23 |
| Thermal conductivity (W/m·°C) | - | 42.3 | 21.2 |
| Specific thermal capacity (J/kg·°C) | - | 444 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.41 | - | - |
| Deity (kg/dm³) | - | - | 441 |
| Poisson’s coefficient, ν | - | - | 122 |