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6 CuNb 15 5

Germany DIN 6CuNb155 Low alloyed CuNb steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 6CuNb155 / 6 CuNb 15 5
Category Grade Standard Region/Area Standard Content
Metals 6 CuNb 15 5 -- Germany Low alloyed CuNb steel

Chemical composition(mass fraction)(wt.%) of the 6 CuNb 15 5

Element Min Max Similar
Si 0.4500 0.6500 -
Nb - - -
Mn 0.6000 0.8000 -
Cu 1.5000 1.7000 -
C 0.0400 0.0700 -

Mechanical Properties of steel grade 6 CuNb 15 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)
673 (≥) 174 (≥) 33 32 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 412

Physical Properties of steel grade 6 CuNb 15 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
41 - -     0.42 -  
159 211 - 14.3 344   -  
343 - 43 44.2   122 132

Heat Treatment of steel grade 6 CuNb 15 5

Heat treated : 1845°C - 1453°C

Technological Curves of steel grade 6 CuNb 15 5

Cross Reference Table (Equivalent Grade) of 6 CuNb 15 5

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