GOST 4543-2016 40XH: Nickel-chromium alloy structural steel with improved toughness, hardenability and fatigue resistance. Used in demanding engineering and transmission applications.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C
Si
Mn
S
P
Cr
Ni
Cu
0.36-0.44
0.17-0.37
0.50-0.80
<=0.035
<=0.035
0.45-0.75
1.00-1.40
<=0.30
Mechanical Properties
Tensile Strength
980-1180 MPa
Yield Strength
>=785 MPa
Elongation
>=10%
Hardness
241-285 HB
Typical Available Sizes
Round Bar
16-300 mm dia
Flat Bar
20-250 mm width
Sizes are indicative. Contact seller for exact availability.