Minimal Match — 41% match
based on chemical composition and mechanical property overlap.
GB/T 3077 40CrNiMoA (GB/T 3077-2015) and IS 4367 07Cr4Mo6 (IS 4367:1991) are both steel grades.
Both fall under the Alloy Steel category.
GB/T 3077 40CrNiMoA is defined under Guobiao Standards (GB/T), originating from China, while IS 4367 07Cr4Mo6 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, GB/T 3077 40CrNiMoA vs IS 4367 07Cr4Mo6 is a 61.5% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 41%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
GB/T 3077 40CrNiMoA
IS 4367 07Cr4Mo6
Tensile Strength
1080-1280 MPa
380-550 MPa
Yield Strength
930-1080 MPa
225 MPa min
Elongation
10-14%
>=19%
Hardness
30-38 HRC
Not specified
Izod Impact
Not specified
60 J min
Hardness (soft annealed)
Not specified
<=170 HB
Condition
Not specified
Normalised and tempered, ruling section up to 40 mm
Typical Applications
GB/T 3077 40CrNiMoA
Used for crankshafts, turbine shafts, heavy-duty gears, aircraft landing parts, bolts, and pressure components.
IS 4367 07Cr4Mo6
Not documented
Can GB/T 3077 40CrNiMoA Be Substituted With IS 4367 07Cr4Mo6?
GB/T 3077 40CrNiMoA and IS 4367 07Cr4Mo6 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
What is the difference between GB/T 3077 40CrNiMoA and IS 4367 07Cr4Mo6?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can GB/T 3077 40CrNiMoA be substituted with IS 4367 07Cr4Mo6?
GB/T 3077 40CrNiMoA and IS 4367 07Cr4Mo6 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.