ASTM A479/A479M N08811 Introduce
{stadard} is a standard specification for stainless steel bars and shapes used in the manufacturing of boilers. The ASTM A479/A479M N08811 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:1925°C - 1117°C
Application:Stainless steel and heat-resistant steel bars and profiles for boilers and pressure vessels
ASTM A479/A479M N08811 Material Chemical Composition
The chemical composition of the ASTM A479/A479M N08811 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Carbon (C) | 0.0600 | 0.1000 |
| Manganese (Mn) | - | 1.5000 |
| PhOsphorus (P) | - | 0.0450 |
| Sulfur (S) | - | 0.0150 |
| Silicon (Si) | - | 1.0000 |
| Nickel (Ni) | 30.0000 | 35.0000 |
| Chromium (Cr) | 19.0000 | 23.0000 |
| Copper (Cu) | - | 0.7500 |
| Titanium (Ti) | 0.2500 | 0.6000 |
| Aluminum (Al) | 0.2500 | 0.6000 |
| Iron (Fe) | 39.5000 | - |
| (Al+Ti) | 0.8500 | 1.2000 |
ASTM A479/A479M N08811 Material Mechanical Properties
The mechanical properties of the ASTM A479/A479M N08811 steel are as follows:
| YieldRp0.2 | ≤ 152 (MPa) |
| TeileRm | ≤ 886 (MPa) |
| ImpactKV/Ku | 11(J) |
| ElongationA | 21% |
| Reduction in cross section on fractureZ | 34% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 332 |
ASTM A479/A479M N08811 Material Thermal Properties
The thermal performance parameters of the ASTM A479/A479M N08811 steel are as follows:
| Temperature (°C) | 32 | 793 | 585 |
| Modulus of elasticity (GPa) | - | 252 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 22 |
| Thermal conductivity (W/m·°C) | - | 12.3 | 14.2 |
| Specific thermal capacity (J/kg·°C) | - | 141 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.33 | - | - |
| Deity (kg/dm³) | - | - | 432 |
| Poisson’s coefficient, ν | - | - | 442 |