ASTM A276 S31725 Introduce
ASTM A276 S31725 steel is an alloy of iron, chromium and nickel. The alloy is classified as a stainless steel since it contains at least 10.5% chromium. ASTM A276 S31725 steel has a very high corrosion resistance and also possess good mechanical properties. This makes it an ideal choice for applications requiring extreme toughness and strength. ASTM A276 S31725 steel can be heat-treated to obtain the desired hardness and strength.
Smelting temperature:1624°C - 1178°C
Application:Stainless steel bars and profiles
ASTM A276 S31725 Material Chemical Composition
The chemical composition of the ASTM A276 S31725 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Nitrogen (N) | - | 0.2000 |
| Molybdenum (Mo) | 4.0000 | 5.0000 |
| Nickel (Ni) | 13.5000 | 17.5000 |
| Chromium (Cr) | 18.0000 | 20.0000 |
| PhOsphorus (P) | - | 0.0450 |
| Sulfur (S) | - | 0.0300 |
| Manganese (Mn) | - | 2.0000 |
| Silicon (Si) | - | 1.0000 |
| Carbon (C) | - | 0.0300 |
ASTM A276 S31725 Material Mechanical Properties
The mechanical properties of the ASTM A276 S31725 steel are as follows:
| YieldRp0.2 | ≤ 468 (MPa) |
| TeileRm | ≤ 921 (MPa) |
| ImpactKV/Ku | 13(J) |
| ElongationA | 43% |
| Reduction in cross section on fractureZ | 32% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 434 |
ASTM A276 S31725 Material Thermal Properties
The thermal performance parameters of the ASTM A276 S31725 steel are as follows:
| Temperature (°C) | 12 | 736 | 369 |
| Modulus of elasticity (GPa) | - | 246 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 32 |
| Thermal conductivity (W/m·°C) | - | 14.3 | 21.2 |
| Specific thermal capacity (J/kg·°C) | - | 121 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.42 | - | - |
| Deity (kg/dm³) | - | - | 341 |
| Poisson’s coefficient, ν | - | - | 242 |
ASTM A276 S31725 Material Machining Technology
ASTM A276 S31725 also has good formability and weldability. It is heat treatable so it can be hardened and tempered to meet customer needs. It has excellent wear and abrasion resistance, and it has very good smoothness and is strong enough to armor or reinforce many other products. It is aesthetically pleasing, and has a secure response to force, electricity and magnetism.