ASTM A213/A213M Grade 800 Introduce
ASTM A213/A213M Grade 800 steel is a ferritic and austenitic stainless steel that is widely used in many industrial applications including power generation, chemical, desalination and petrochemical plants. ASTM A213/A213M Grade 800 steel is characterised by high strength, excellent corrosion resistance and watertight weldability.
Smelting temperature:1125°C - 1511°C
Application:Seamless ferritic and austenitic alloy steel boilers, superheaters and heat exchanger tubes
ASTM A213/A213M Grade 800 Material Chemical Composition
The chemical composition of the ASTM A213/A213M Grade 800 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Titanium (Ti) | 0.1500 | 0.6000 |
| Silicon (Si) | - | 1.0000 |
| Sulfur (S) | - | 0.0150 |
| PhOsphorus (P) | - | 0.0450 |
| Nickel (Ni) | 30.0000 | 35.0000 |
| Manganese (Mn) | - | 1.5000 |
| Iron (Fe) | 39.5000 | - |
| Copper (Cu) | - | 0.7500 |
| Chromium (Cr) | 19.0000 | 23.0000 |
| Carbon (C) | 0.0500 | 0.1000 |
| Aluminum (Al) | 0.1500 | 0.6000 |
ASTM A213/A213M Grade 800 Material Mechanical Properties
The mechanical properties of the ASTM A213/A213M Grade 800 steel are as follows:
| YieldRp0.2 | ≤ 448 (MPa) |
| TeileRm | ≤ 225 (MPa) |
| ImpactKV/Ku | 32(J) |
| ElongationA | 24% |
| Reduction in cross section on fractureZ | 41% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 443 |
ASTM A213/A213M Grade 800 Material Thermal Properties
The thermal performance parameters of the ASTM A213/A213M Grade 800 steel are as follows:
| Temperature (°C) | 23 | 426 | 276 |
| Modulus of elasticity (GPa) | - | 518 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 32 |
| Thermal conductivity (W/m·°C) | - | 31.3 | 14.2 |
| Specific thermal capacity (J/kg·°C) | - | 422 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.44 | - | - |
| Deity (kg/dm³) | - | - | 434 |
| Poisson’s coefficient, ν | - | - | 143 |