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Korea KS NR9990 精炼镍 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: NR9990 / NR9990
Category Grade Standard Region/Area Standard Content
Metals NR9990 KS D ISO 6283 Korea 精炼镍

Chemical composition(mass fraction)(wt.%) of the NR9990

Element Min Max Similar
Zn - 0.0015 -
Tl - 0.0001 -
Te - 0.0001 -
Sn - 0.0001 -
Si - 0.0020 -
Se - 0.0010 -
Sb - 0.0005 -
S - 0.0020 -
Pb - 0.0010 -
P - 0.0020 -
Ni 99.9000 - -
Mn - 0.0040 -
Fe - 0.0150 -
Cu - 0.0100 -
Co - 0.0500 -
Cd - 0.0010 -
C - 0.0150 -
Bi - 0.0002 -
As - 0.0040 -
Al - 0.0010 -
Ag - 0.0010 -

Mechanical Properties of steel grade NR9990

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)
183 (≥) 952 (≥) 23 12 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical Properties of steel grade NR9990

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 - -     0.14 -  
685 579 - 41.3 441   -  
469 - 43 13.2   123 211

Heat Treatment of steel grade NR9990

Heat treated : 1587°C - 1468°C

Technological Curves of steel grade NR9990

Cross Reference Table (Equivalent Grade) of NR9990

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