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X70CrMnNiN21-6

Description

Germany DIN X70CrMnNiN21-6 Valve steel and X70CrMnNiN21-6 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: X70CrMnNiN21-6
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel X70CrMnNiN21-6 DIN Germany Valve steel
X33CrNiMnN23-8
1.4870
X53CrMnNiNbN21-9
X53CrMnNiN21-9
1.4871
1.4873
X45CrNiW18-9
X55CrMnNiN20-8
1.4875
1.4881

Chemical composition(mass fraction)(wt.%) of the X70CrMnNiN21-6

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) N(%)
0.65-0.75 Max 0.80 5.50-7.00 Max 0.050 Max 0.02-0. 20.00-22.00 1.40-1.90 0.18-0.28

Mechanical Properties of steel grade X70CrMnNiN21-6

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)
757 (≥) 862 (≥) 42 43 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical Properties of steel grade X70CrMnNiN21-6

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 - -     0.32 -  
749 426 - 42.3 134   -  
654 - 12 11.2   412 312

Heat Treatment of steel grade X70CrMnNiN21-6

Heat treated : 1693°C - 1238°C

Technological Curves of steel grade X70CrMnNiN21-6

Cross Reference Table (Equivalent Grade) of X70CrMnNiN21-6

Grade Standard Country Application
X70CrMnNiN21-6 DIN Germany Valve steel

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