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SNi6686(NiCr21Mo16W4)

China GB SNi6686(NiCr21Mo16W4) Nickel and nickel alloy welding wires and rodes and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals SNi6686(NiCr21Mo16W4) GB/T 15620 China Nickel and nickel alloy welding wires and rodes

Chemical composition(mass fraction)(wt.%) of the SNi6686(NiCr21Mo16W4)

Element Min Max Similar
W 3.0000 4.4000 -
Mo 15.0000 17.0000 -
Cr 19.0000 23.0000 -
Ti - 0.2500 -
Al - 0.5000 -
Ni 49.0000 - -
Cu - 0.5000 -
Si - 0.0800 -
Fe - 5.0000 -
Mn - 1.0000 -
C - 0.0100 -

Mechanical Properties of steel grade SNi6686(NiCr21Mo16W4)

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)
912 (≥) 497 (≥) 44 12 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical Properties of steel grade SNi6686(NiCr21Mo16W4)

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
22 - -     0.42 -  
694 583 - 13.3 312   -  
892 - 13 34.2   423 333

Heat Treatment of steel grade SNi6686(NiCr21Mo16W4)

Heat treated : 1717°C - 1244°C

Technological Curves of steel grade SNi6686(NiCr21Mo16W4)

Cross Reference Table (Equivalent Grade) of SNi6686(NiCr21Mo16W4)

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