JIS G3463 SUS 312 LTB Introduce
The development of JIS G3463 SUS 312 LTB has enabled the production of high quality, durable and cost-effective pressure vessels, which have improved performance and safety. It is a popular choice for many industries as its high strength is reliable and its fabrication is economical. The excellent weldability and corrosion resistance of this steel further make it a great choice for use in a wide range of applications.
Smelting temperature:1991°C - 1487°C
Application:stainless steel pipe
JIS G3463 SUS 312 LTB Material Chemical Composition
The chemical composition of the JIS G3463 SUS 312 LTB steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | - | 0.8000 |
| Sulfur (S) | - | 0.0150 |
| PhOsphorus (P) | - | 0.0300 |
| Nickel (Ni) | 17.5000 | 19.5000 |
| Nitrogen (N) | 0.1600 | 0.2500 |
| Molybdenum (Mo) | 6.0000 | 7.0000 |
| Manganese (Mn) | - | 1.0000 |
| Copper (Cu) | 0.5000 | 1.0000 |
| Chromium (Cr) | 19.0000 | 21.0000 |
| Carbon (C) | - | 0.0200 |
JIS G3463 SUS 312 LTB Material Mechanical Properties
The mechanical properties of the JIS G3463 SUS 312 LTB steel are as follows:
| YieldRp0.2 | ≤ 294 (MPa) |
| TeileRm | ≤ 761 (MPa) |
| ImpactKV/Ku | 21(J) |
| ElongationA | 34% |
| Reduction in cross section on fractureZ | 11% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 331 |
JIS G3463 SUS 312 LTB Material Thermal Properties
The thermal performance parameters of the JIS G3463 SUS 312 LTB steel are as follows:
| Temperature (°C) | 44 | 166 | 477 |
| Modulus of elasticity (GPa) | - | 976 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 31 |
| Thermal conductivity (W/m·°C) | - | 44.3 | 41.2 |
| Specific thermal capacity (J/kg·°C) | - | 432 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.34 | - | - |
| Deity (kg/dm³) | - | - | 432 |
| Poisson’s coefficient, ν | - | - | 411 |