Strong Match — 85.8% match
based on chemical composition and mechanical property overlap.
IS 1570 (Part 4) 36Si7 (IS 1570 (Part 4):1988) and IS 5517 37Mn5Si5 (IS 5517:1993) are both steel grades.
Both fall under the Alloy Steel category.
IS 1570 (Part 4) 36Si7 is defined under Bureau of Indian Standards (IS), originating from India, while IS 5517 37Mn5Si5 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, IS 1570 (Part 4) 36Si7 vs IS 5517 37Mn5Si5 is a 85.8% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a strong match overall at 85.8%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 1570 (Part 4) 36Si7
IS 5517 37Mn5Si5
Tensile Strength
Not specified
800-950 MPa
Yield Strength (0.2% proof)
Not specified
550 MPa min
Elongation
Not specified
>=14%
Izod Impact
Not specified
34 J min
Hardness (annealed)
Not specified
<=220 HB
Condition
Not specified
Hardened and tempered, ruling section up to 100 mm
Key Differences
IS 5517 37Mn5Si5 specifies S, P which are not specified for IS 1570 (Part 4) 36Si7.
Can IS 1570 (Part 4) 36Si7 Be Substituted With IS 5517 37Mn5Si5?
IS 1570 (Part 4) 36Si7 and IS 5517 37Mn5Si5 overlap closely enough on chemistry and mechanical properties that IS 5517 37Mn5Si5 is often considered as a substitute for IS 1570 (Part 4) 36Si7 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between IS 1570 (Part 4) 36Si7 and IS 5517 37Mn5Si5?
IS 5517 37Mn5Si5 specifies S, P which are not specified for IS 1570 (Part 4) 36Si7.
Can IS 1570 (Part 4) 36Si7 be substituted with IS 5517 37Mn5Si5?
IS 1570 (Part 4) 36Si7 and IS 5517 37Mn5Si5 overlap closely enough on chemistry and mechanical properties that IS 5517 37Mn5Si5 is often considered as a substitute for IS 1570 (Part 4) 36Si7 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.