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China YB 6J20 镍铬电阻合金丝 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 6J20 / 6J20
Category Grade Standard Region/Area Standard Content
Metals 6J20 YB/T 5259 China 镍铬电阻合金丝

Chemical composition(mass fraction)(wt.%) of the 6J20

Element Min Max Similar
Fe - 1.5000 -
Al - 0.3000 -
Ni - - -
Cr 20.0000 23.0000 -
S - 0.0100 -
P - 0.0100 -
Mn - 0.7000 -
Si 0.4000 1.3000 -
C - 0.0500 -

Mechanical Properties of steel grade 6J20

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)
284 (≥) 478 (≥) 41 31 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 113

Physical Properties of steel grade 6J20

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
14 - -     0.14 -  
596 723 - 34.3 114   -  
747 - 44 42.2   313 133

Heat Treatment of steel grade 6J20

Heat treated : 1534°C - 1879°C

Technological Curves of steel grade 6J20

Cross Reference Table (Equivalent Grade) of 6J20

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