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SNi7069(NiCr15Fe7Nb)

China GB SNi7069(NiCr15Fe7Nb) Nickel and nickel alloy welding wires and rodes and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals SNi7069(NiCr15Fe7Nb) GB/T 15620 China Nickel and nickel alloy welding wires and rodes

Chemical composition(mass fraction)(wt.%) of the SNi7069(NiCr15Fe7Nb)

Element Min Max Similar
Nb 0.7000 1.2000 -
Cr 14.0000 17.0000 -
Ti 2.0000 2.7000 -
Al 0.4000 1.0000 -
Ni 70.0000 - -
Cu - 0.5000 -
Si - 0.5000 -
Fe 5.0000 9.0000 -
Mn - 1.0000 -
C - 0.0800 -

Mechanical Properties of steel grade SNi7069(NiCr15Fe7Nb)

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)
275 (≥) 473 (≥) 23 12 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 412

Physical Properties of steel grade SNi7069(NiCr15Fe7Nb)

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
42 - -     0.12 -  
784 536 - 22.3 314   -  
658 - 44 24.2   431 113

Heat Treatment of steel grade SNi7069(NiCr15Fe7Nb)

Heat treated : 1181°C - 1236°C

Technological Curves of steel grade SNi7069(NiCr15Fe7Nb)

Cross Reference Table (Equivalent Grade) of SNi7069(NiCr15Fe7Nb)

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