JIS G3114 SMA570P Introduce
The JIS G3114 steel standard is a comprehensive and beneficial standard for steel products. It provides important guidelines for the quality of steel products, as well as a framework for classifying different types of steel. The standard also covers a range of materials from different categories, including hot-rolled, cold-rolled and alloy steel, as well as specialized steel products like welded wire mesh and universal plates. As such, JIS G3114 is an invaluable resource for the steel industry in Japan and worldwide.
Smelting temperature:1761°C - 1111°C
Application:Hot rolled atmospheric corrosion resistant welded structural steel
JIS G3114 SMA570P Material Chemical Composition
The chemical composition of the JIS G3114 SMA570P steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | - | 0.5500 |
| Sulfur (S) | - | 0.0350 |
| PhOsphorus (P) | - | 0.0350 |
| Manganese (Mn) | - | 1.4000 |
| Copper (Cu) | 0.2000 | 0.3500 |
| Chromium (Cr) | 0.3000 | 0.5500 |
| (CEV) | - | 0.4400 |
| Carbon (C) | - | 0.1800 |
JIS G3114 SMA570P Material Mechanical Properties
JIS G3114 SMA570P steel has a wide range of chemical compositions depending on grade, ranging from very low carbon contents to high-manganese contents. Low-carbon grades have poor weldability, but are tougher and more resistant to corrosion. High-manganese grades have improved weldability in addition to enhanced strength and corrosion resistance.
The mechanical properties of the JIS G3114 SMA570P steel are as follows:
| YieldRp0.2 | ≤ 279 (MPa) |
| TeileRm | ≤ 673 (MPa) |
| ImpactKV/Ku | 23(J) |
| ElongationA | 21% |
| Reduction in cross section on fractureZ | 24% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 423 |
JIS G3114 SMA570P Material Thermal Properties
The thermal performance parameters of the JIS G3114 SMA570P steel are as follows:
| Temperature (°C) | 43 | 723 | 937 |
| Modulus of elasticity (GPa) | - | 784 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 11 |
| Thermal conductivity (W/m·°C) | - | 11.3 | 32.2 |
| Specific thermal capacity (J/kg·°C) | - | 143 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.31 | - | - |
| Deity (kg/dm³) | - | - | 412 |
| Poisson’s coefficient, ν | - | - | 122 |
JIS G3114 SMA570P Material Machining Technology
For good machining results with JIS G3114 SMA570P steel, it is important to use a high cutting speed. The cutting speed should be at least 50 m/min when machining JIS G3114 SMA570P steel in the normalized condition and at least 70 m/min when machining it in the annealed condition. It is important to note that the cutting speed should be gradually increased in small increments to prevent thermal shock and rapid tool deterioration.