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EU EN 20MnNb6 压力钢- 交货技术条件 - 第2部分:规定高温性能的非合金和合金钢管无缝钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20MnNb6 / 20MnNb6
Category Grade Standard Region/Area Standard Content
Metals 20MnNb6 EN 10216-2 EU 压力钢- 交货技术条件 - 第2部分:规定高温性能的非合金和合金钢管无缝钢管

Chemical composition(mass fraction)(wt.%) of the 20MnNb6

Element Min Max Similar
Cu - 0.3000 -
Nb 0.0150 0.1000 -
P - 0.0250 -
S - 0.0200 -
Mn 1.0000 1.5000 -
Si 0.1500 0.3500 -
C - 0.2200 -

Mechanical Properties of steel grade 20MnNb6

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)
921 (≥) 884 (≥) 34 34 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade 20MnNb6

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
34 - -     0.14 -  
683 672 - 42.3 134   -  
921 - 12 42.2   314 113

Heat Treatment of steel grade 20MnNb6

Heat treated : 1248°C - 1838°C

Technological Curves of steel grade 20MnNb6

Cross Reference Table (Equivalent Grade) of 20MnNb6

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