Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
IS 5517 15Cr13Mo6 (IS 5517:1993) and IS 1570 (Part 4) 103Cr4 (IS 1570 (Part 4):1988) are both steel grades.
Both fall under the Alloy Steel category.
IS 5517 15Cr13Mo6 is defined under Bureau of Indian Standards (IS), originating from India, while IS 1570 (Part 4) 103Cr4 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, IS 5517 15Cr13Mo6 vs IS 1570 (Part 4) 103Cr4 is a 67.5% 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 5517 15Cr13Mo6
IS 1570 (Part 4) 103Cr4
Tensile Strength
700-850 MPa
Not specified
Yield Strength (0.2% proof)
540 MPa min
Not specified
Elongation
>=18%
Not specified
Izod Impact
55 J min
Not specified
Hardness (annealed)
<=200 HB
Not specified
Condition
Hardened and tempered, ruling section up to 150 mm
Not specified
Key Differences
IS 5517 15Cr13Mo6 specifies Mo, S, P which are not specified for IS 1570 (Part 4) 103Cr4.
Can IS 5517 15Cr13Mo6 Be Substituted With IS 1570 (Part 4) 103Cr4?
IS 5517 15Cr13Mo6 and IS 1570 (Part 4) 103Cr4 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 5517 15Cr13Mo6 and IS 1570 (Part 4) 103Cr4?
IS 5517 15Cr13Mo6 specifies Mo, S, P which are not specified for IS 1570 (Part 4) 103Cr4.
Can IS 5517 15Cr13Mo6 be substituted with IS 1570 (Part 4) 103Cr4?
IS 5517 15Cr13Mo6 and IS 1570 (Part 4) 103Cr4 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.