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X 8 CrNiMoBNb 16 16

Germany DIN X8CrNiMoBNb1616 Heat Resisting and Highly Heat Resisting Materials for Bolts and Nuts; Quality Specifications and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals X 8 CrNiMoBNb 16 16 DIN 17240 Germany Heat Resisting and Highly Heat Resisting Materials for Bolts and Nuts; Quality Specifications

Chemical composition(mass fraction)(wt.%) of the X 8 CrNiMoBNb 16 16

Element Min Max Similar
Si 0.3000 0.6000 -
S - 0.0300 -
P - 0.0450 -
Ni 15.5000 17.5000 -
Nb - 1.2000 -
Mo 1.6000 2.0000 -
Mn - 1.5000 -
Cr 15.5000 17.5000 -
C 0.0400 0.1000 -
B 0.0500 0.1000 -

Mechanical Properties of steel grade X 8 CrNiMoBNb 16 16

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)
825 (≥) 285 (≥) 13 21 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade X 8 CrNiMoBNb 16 16

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 - -     0.34 -  
493 156 - 22.3 423   -  
824 - 24 22.2   414 412

Heat Treatment of steel grade X 8 CrNiMoBNb 16 16

Heat treated : 1692°C - 1154°C

Technological Curves of steel grade X 8 CrNiMoBNb 16 16

Cross Reference Table (Equivalent Grade) of X 8 CrNiMoBNb 16 16

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