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Switzerland SNV 20Mn5 Steels for forged pieces and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20Mn5 / 20 Mn 5
Category Grade Standard Region/Area Standard Content
Metals 20 Mn 5 SNV 210610 Switzerland Steels for forged pieces

Chemical composition(mass fraction)(wt.%) of the 20 Mn 5

Element Min Max Similar
Si - 0.4000 -
S - 0.0350 -
P - 0.0350 -
Ni - 0.4000 -
Mo - 0.1000 -
Mn 1.0000 1.5000 -
Cr+Mo+Ni - 0.6300 -
Cr - 0.4000 -
C 0.1700 0.2300 -
Al 0.0200 - -

Mechanical Properties of steel grade 20 Mn 5

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)
827 (≥) 498 (≥) 23 42 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical Properties of steel grade 20 Mn 5

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
14 - -     0.22 -  
751 425 - 14.3 442   -  
827 - 12 23.2   331 114

Heat Treatment of steel grade 20 Mn 5

Heat treated : 1311°C - 1839°C

Technological Curves of steel grade 20 Mn 5

Cross Reference Table (Equivalent Grade) of 20 Mn 5

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