Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
IS 4367 37Mn5Si5 (IS 4367:1991) and IS 1570 (Part 4) 103Cr6 (IS 1570 (Part 4):1988) are both steel grades.
Both fall under the Alloy Steel category.
IS 4367 37Mn5Si5 is defined under Bureau of Indian Standards (IS), originating from India, while IS 1570 (Part 4) 103Cr6 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, IS 4367 37Mn5Si5 vs IS 1570 (Part 4) 103Cr6 is a 69.7% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a minimal match overall at 35%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 4367 37Mn5Si5
IS 1570 (Part 4) 103Cr6
Tensile Strength
780-930 MPa
Not specified
Yield Strength
590 MPa min
Not specified
Elongation
>=14%
Not specified
Hardness (soft annealed)
<=217 HB
Not specified
Condition
Hardened and tempered
Not specified
Key Differences
IS 4367 37Mn5Si5 specifies S, P which are not specified for IS 1570 (Part 4) 103Cr6.
IS 1570 (Part 4) 103Cr6 specifies Cr which is not specified for IS 4367 37Mn5Si5.
Can IS 4367 37Mn5Si5 Be Substituted With IS 1570 (Part 4) 103Cr6?
IS 4367 37Mn5Si5 and IS 1570 (Part 4) 103Cr6 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 IS 4367 37Mn5Si5 and IS 1570 (Part 4) 103Cr6?
IS 4367 37Mn5Si5 specifies S, P which are not specified for IS 1570 (Part 4) 103Cr6. IS 1570 (Part 4) 103Cr6 specifies Cr which is not specified for IS 4367 37Mn5Si5.
Can IS 4367 37Mn5Si5 be substituted with IS 1570 (Part 4) 103Cr6?
IS 4367 37Mn5Si5 and IS 1570 (Part 4) 103Cr6 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.