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X9CrNi18-8

Favorite Datasheet
X2CrNiMoN17-13 X12CrNi17-7
#X9CrNi18-8

Description

International ISO ISO 6931-1, X9CrNi18-8 Specialsteel Stainless steels for springs - Part 1: Wire and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: X9CrNi18-8
Category Class Grade Standard Country Application
Steel GradesSpecialsteel X9CrNi18-8 ISO International Stainless steels for springs - Part 1: Wire

Chemical composition(mass fraction)(wt.%) of the X9CrNi18-8

C Si Mn P S Cr Mo Ni
≤0.12 ≤1.50 ≤2.00 ≤0.045 ≤0.030 16.00 -19.00 ≤ ≥ 6.50 -9.50

Mechanical Properties of steel grade X9CrNi18-8

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)
747 (≥) 225 (≥) 44 22 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade X9CrNi18-8

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
13 - -     0.32 -  
194 164 - 24.3 133   -  
838 - 42 42.2   121 221

Heat Treatment of steel grade X9CrNi18-8

Heat treated : 1483°C - 1889°C

Technological Curves of steel grade X9CrNi18-8

Relevant standard of X9CrNi18-8

ISO 6931-1 Stainless steels for springs - Part 1: Wire ISO-6931-1.pdf
X2CrNiMoN17-13 X12CrNi17-7
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