ASTM A479/A479M S31803 Introduce
{stadard} is a standard specification for stainless steel bars and shapes used in the manufacturing of boilers. The ASTM A479/A479M S31803 boiler steel is a type of high-strength, corrosion-resistant steel that is designed to withstand high temperatures and pressures while retaining its structural integrity.
Smelting temperature:1714°C - 1895°C
Application:Stainless steel and heat-resistant steel bars and profiles for boilers and pressure vessels
ASTM A479/A479M S31803 Material Mechanical Properties
The mechanical properties of the ASTM A479/A479M S31803 steel are as follows:
| YieldRp0.2 | ≤ 371 (MPa) |
| TeileRm | ≤ 669 (MPa) |
| ImpactKV/Ku | 42(J) |
| ElongationA | 31% |
| Reduction in cross section on fractureZ | 12% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 143 |
ASTM A479/A479M S31803 Material Thermal Properties
The thermal performance parameters of the ASTM A479/A479M S31803 steel are as follows:
| Temperature (°C) | 31 | 645 | 615 |
| Modulus of elasticity (GPa) | - | 458 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 41 |
| Thermal conductivity (W/m·°C) | - | 34.3 | 21.2 |
| Specific thermal capacity (J/kg·°C) | - | 442 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.12 | - | - |
| Deity (kg/dm³) | - | - | 143 |
| Poisson’s coefficient, ν | - | - | 244 |