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20MnMoNi5-5

Germany SEW 20MnMoNi5-5 Non-alloy and alloy steels with specified properties at moderately elevated and elevated temperatures for pressure vessel purposes; Technical delivery conditions for flat products and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20MnMoNi5-5 / 20MnMoNi5-5
Category Grade Standard Region/Area Standard Content
Metals 20MnMoNi5-5 SEW 028 Germany Non-alloy and alloy steels with specified properties at moderately elevated and elevated temperatures for pressure vessel purposes; Technical delivery conditions for flat products

Chemical composition(mass fraction)(wt.%) of the 20MnMoNi5-5

Element Min Max Similar

Mechanical Properties of steel grade 20MnMoNi5-5

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)
627 (≥) 278 (≥) 13 22 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade 20MnMoNi5-5

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
42 - -     0.31 -  
125 773 - 23.3 132   -  
713 - 14 42.2   234 221

Heat Treatment of steel grade 20MnMoNi5-5

Heat treated : 1272°C - 1714°C

Technological Curves of steel grade 20MnMoNi5-5

Cross Reference Table (Equivalent Grade) of 20MnMoNi5-5

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