Germany DIN DIN EN 10085, V820 Specialsteel Al-alloyed nitriding steel grade for large cross-sections. Suitable for piston rods, extruders, cylinders, gear wheels, and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Standard | Country | Application | 
|---|---|---|---|---|---|
| Steel Grades | Specialsteel | V820 | DIN | Germany | Al-alloyed nitriding steel grade for large cross-sections. Suitable for piston rods, extruders, cylinders, gear wheels, | 
| C | Si | Mn | P | S | Al | Cr | Mo | Ni | 
|---|---|---|---|---|---|---|---|---|
| 0.30 -0.37 | ≤0.40 | 0.40 -0.70 | ≤0.025 | ≤0.035 | 0.80 -1.20 | 1.50 -1.80 | 0.15 -0.25 | 0.85 -1.15 | 
| Yield Rp0.2 (MPa) | Tensile Rm (MPa) | Impact KV/Ku (J) | Elongation A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | Brinell hardness (HBW) | 
|---|---|---|---|---|---|---|
| 451 (≥) | 351 (≥) | 21 | 11 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 122 | 
| Temperature (°C) | Modulus of elasticity (GPa) | Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) | Specific thermal capacity (J/kg·°C) | Specific electrical resistivity (Ω mm²/m) | Density (kg/dm³) | Poisson’s coefficient, ν | 
|---|---|---|---|---|---|---|---|
| 23 | - | - | 0.14 | - | |||
| 623 | 974 | - | 34.3 | 413 | - | ||
| 946 | - | 22 | 13.2 | 323 | 314 | 
Heat treated : 1146°C - 1611°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| 34CrAlNi7-10 | 
| DIN EN 10085 | Al-alloyed nitriding steel grade for large cross-sections. Suitable for piston rods, extruders, cylinders, gear wheels, | DIN-EN-10085.pdf | 
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