Grade 18Ni140
Classification Alloy Steel
Properties High Strength Good Machinability Good Weldability
18Ni140 Chemical Element Composition Content (%)
Component C Ni Mo Ti Co Al
Minimum Value - 17.5 3 0.15 8 0.05
Maximum Value 0.03 18.5 3.5 0.25 9 0.15
18Ni140 Mechanical Properties
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Impact Energy Absorption
KV2
J
1400~1550 1350~1450 14~16 65~70 46~48HRC

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