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X2CrNi18-9

China GB X2CrNi18-9 制造医疗器械用不锈钢针管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: X2CrNi18-9 / X2CrNi18-9
Category Grade Standard Region/Area Standard Content
Metals X2CrNi18-9 GB/T 18457 China 制造医疗器械用不锈钢针管

Chemical composition(mass fraction)(wt.%) of the X2CrNi18-9

Element Min Max Similar
Ni 9.0000 12.0000 -
Cr 17.0000 19.0000 -
S - 0.0300 -
P - 0.0450 -
Mn - 2.0000 -
Si - 1.0000 -
C - 0.0300 -

Mechanical Properties of steel grade X2CrNi18-9

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)
474 (≥) 869 (≥) 14 31 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 433

Physical Properties of steel grade X2CrNi18-9

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
41 - -     0.14 -  
594 275 - 13.3 141   -  
861 - 42 41.2   431 334

Heat Treatment of steel grade X2CrNi18-9

Heat treated : 1238°C - 1643°C

Technological Curves of steel grade X2CrNi18-9

Cross Reference Table (Equivalent Grade) of X2CrNi18-9

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