JIS C2553 30G120 Introduce
JIS C2553 30G120 has good corrosion resistance due to its high levels of silicon and chromium. The silicon helps to form a protective rust which prevents surface corrosion. The chromium helps to form a hard outer layer that prevents rust from forming beneath the surface. Additionally, JIS C2553 30G120 is anodized, which further improves its corrosion resistance by creating an additional layer of protection.
Smelting temperature:1828°C - 1918°C
Application:Fully processed state to deliver cold rolled grain oriented electrical steel strips and sheets
JIS C2553 30G120 Material Mechanical Properties
The mechanical properties of the JIS C2553 30G120 steel are as follows:
| YieldRp0.2 | ≤ 992 (MPa) |
| TeileRm | ≤ 285 (MPa) |
| ImpactKV/Ku | 32(J) |
| ElongationA | 31% |
| Reduction in cross section on fractureZ | 22% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 131 |
JIS C2553 30G120 Material Thermal Properties
The thermal performance parameters of the JIS C2553 30G120 steel are as follows:
| Temperature (°C) | 11 | 733 | 165 |
| Modulus of elasticity (GPa) | - | 575 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 12 |
| Thermal conductivity (W/m·°C) | - | 31.3 | 32.2 |
| Specific thermal capacity (J/kg·°C) | - | 423 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.34 | - | - |
| Deity (kg/dm³) | - | - | 243 |
| Poisson’s coefficient, ν | - | - | 233 |