JIS G3114 SMA490CW Introduce
Steel as a material can be roughly divided into two major types, ferrous and non-ferrous. Ferrous materials include steel, iron, and alloys. The JIS G3114 SMA490CW mainly defines the requirements for steel plates, but it also covers other steel products, including cold-rolled steel returns, structural steel, welded wire mesh and universal plates.
Smelting temperature:1911°C - 1595°C
Application:Hot rolled atmospheric corrosion resistant welded structural steel
JIS G3114 SMA490CW Material Mechanical Properties
JIS G3114 SMA490CW steel is known for its unique chemical and physical properties, which give it enhanced mechanical properties such as high tensile strength, yield strength, impact strength and hardness. Each grade has different properties and applications, so it is important to select the right grade for the specific application.
The mechanical properties of the JIS G3114 SMA490CW steel are as follows:
| YieldRp0.2 | ≤ 977 (MPa) |
| TeileRm | ≤ 136 (MPa) |
| ImpactKV/Ku | 13(J) |
| ElongationA | 11% |
| Reduction in cross section on fractureZ | 44% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 213 |
JIS G3114 SMA490CW Material Thermal Properties
The thermal performance parameters of the JIS G3114 SMA490CW steel are as follows:
| Temperature (°C) | 33 | 942 | 897 |
| Modulus of elasticity (GPa) | - | 258 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 11 |
| Thermal conductivity (W/m·°C) | - | 42.3 | 14.2 |
| Specific thermal capacity (J/kg·°C) | - | 444 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.32 | - | - |
| Deity (kg/dm³) | - | - | 321 |
| Poisson’s coefficient, ν | - | - | 332 |
JIS G3114 SMA490CW Material Machining Technology
JIS G3114 SMA490CW steel is relatively easy to machine with the aid of good cutting tools and high cutting speeds. The machinability of JIS G3114 SMA490CW steel is highly dependent on its heat-treatment and can be improved by pre-heat-treating the steel prior to machining. JIS G3114 SMA490CW steel can be machined in both the normalized and annealed condition although the annealed condition yields better machinability as it allows for softer chips which breaks off more easily.