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Global 企业标准 18Ni300 低碳马氏体模具钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 18Ni300 / 18Ni300
Category Grade Standard Region/Area Standard Content
Metals 18Ni300 -- Global 低碳马氏体模具钢

Chemical composition(mass fraction)(wt.%) of the 18Ni300

Element Min Max Similar
Ni 18.0000 19.0000 -
Mo 4.6000 5.2000 -
Co 8.5000 9.5000 -
S - 0.0100 -
P - 0.0100 -
Mn - 0.1000 -
Ti 0.5000 0.8000 -
C - 0.0300 -

Mechanical Properties of steel grade 18Ni300

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)
999 (≥) 323 (≥) 22 21 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade 18Ni300

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
23 - -     0.22 -  
471 288 - 14.3 222   -  
584 - 34 32.2   433 332

Heat Treatment of steel grade 18Ni300

Heat treated : 1294°C - 1921°C

Technological Curves of steel grade 18Ni300

Cross Reference Table (Equivalent Grade) of 18Ni300

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