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Description

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.

Datasheet for: Steel Grades:Specialsteel: V820
Category Class Grade Standard Country Application
Steel GradesSpecialsteel V820 DIN Germany Al-alloyed nitriding steel grade for large cross-sections. Suitable for piston rods, extruders, cylinders, gear wheels,

Chemical composition(mass fraction)(wt.%) of the V820

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

Mechanical Properties of steel grade V820

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)
732 (≥) 439 (≥) 31 12 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade V820

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
44 - -     0.11 -  
226 987 - 22.3 341   -  
771 - 33 44.2   411 222

Heat Treatment of steel grade V820

Heat treated : 1986°C - 1479°C

Technological Curves of steel grade V820

Cross Reference Table (Equivalent Grade) of V820

Grade Standard Country Application
34CrAlNi7-10

Relevant standard of V820

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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