ASTM A479/A479M XM-11 Introduce
ASTM A479/A479M XM-11 pressure vessel steel is preferred in these industries because of its high strength and corrosion resistance. This steel has a higher yield and tensile strength than other types of steel, making it more resistant to deformation and structural failure under high pressure. Additionally, the steel's resistance to corrosion makes it highly durable and long-lasting, even in harsh environments.
Smelting temperature:1955°C - 1815°C
Application:Stainless steel and heat-resistant steel bars and profiles for boilers and pressure vessels
ASTM A479/A479M XM-11 Material Chemical Composition
The chemical composition of the ASTM A479/A479M XM-11 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Carbon (C) | - | 0.0400 |
| Manganese (Mn) | 8.0000 | 10.0000 |
| PhOsphorus (P) | - | 0.0450 |
| Sulfur (S) | - | 0.0300 |
| Silicon (Si) | - | 1.0000 |
| Nickel (Ni) | 5.5000 | 7.5000 |
| Chromium (Cr) | 19.0000 | 21.5000 |
| Nitrogen (N) | 0.1500 | 0.4000 |
ASTM A479/A479M XM-11 Material Mechanical Properties
The mechanical properties of the ASTM A479/A479M XM-11 steel are as follows:
| YieldRp0.2 | ≤ 264 (MPa) |
| TeileRm | ≤ 225 (MPa) |
| ImpactKV/Ku | 34(J) |
| ElongationA | 32% |
| Reduction in cross section on fractureZ | 14% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 331 |
ASTM A479/A479M XM-11 Material Thermal Properties
The thermal performance parameters of the ASTM A479/A479M XM-11 steel are as follows:
| Temperature (°C) | 13 | 295 | 678 |
| Modulus of elasticity (GPa) | - | 595 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 24 |
| Thermal conductivity (W/m·°C) | - | 42.3 | 13.2 |
| Specific thermal capacity (J/kg·°C) | - | 212 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.44 | - | - |
| Deity (kg/dm³) | - | - | 424 |
| Poisson’s coefficient, ν | - | - | 214 |