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BS 970 (Part 3) 635M15 vs IS 1570 (Part 4) 16Ni3Cr2

Strong Match — 90.5% match based on chemical composition and mechanical property overlap.

BS 970 (Part 3) 635M15 (BS 970 (Part 3):1991) and IS 1570 (Part 4) 16Ni3Cr2 (IS 1570 (Part 4):1988) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 3) 635M15 is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 4) 16Ni3Cr2 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 (Part 3) 635M15 vs IS 1570 (Part 4) 16Ni3Cr2 is a 90.5% 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 90.5%.

Frequently Compared With BS 970 (Part 3) 635M15:
IS 11169 (Part 1) 12Ni3Cr2 EN 10084 10NiCr5-4 GOST 4543 12HN3A IS 1570 (Part 4) 103Cr4 UNI 11234 100Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5
Match Breakdown
CHEMISTRY MATCH
90.5%
MECHANICAL MATCH
No shared data
OVERALL
90.5%
Specifications
Property BS 970 (Part 3) 635M15 IS 1570 (Part 4) 16Ni3Cr2
Standard BS 970 (Part 3):1991 IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) 0.12-0.18 0.12-0.20
Si (%) 0.10-0.40 0.15-0.35
Mn (%) 0.60-0.90 0.60-1.00
Cr (%) 0.4-0.80 0.40-0.80
Ni (%) 0.70-1.10 0.60-1.00
P (%) <=0.04 Not specified
S (%) <=0.05 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property BS 970 (Part 3) 635M15 IS 1570 (Part 4) 16Ni3Cr2
Tensile Strength Not specified >=690 MPa
Elongation Not specified >=15%
Izod Impact Not specified >=41 J
Condition Not specified Case hardening steel, refined and quenched, core properties
Typical Applications
BS 970 (Part 3) 635M15
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; alloy case hardening steel (Table 15)
IS 1570 (Part 4) 16Ni3Cr2
Not documented
Key Differences
Can BS 970 (Part 3) 635M15 Be Substituted With IS 1570 (Part 4) 16Ni3Cr2?
BS 970 (Part 3) 635M15 and IS 1570 (Part 4) 16Ni3Cr2 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 4) 16Ni3Cr2 is often considered as a substitute for BS 970 (Part 3) 635M15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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BS 970 (Part 3) 635M15
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IS 1570 (Part 4) 16Ni3Cr2
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Frequently Asked Questions
What is the difference between BS 970 (Part 3) 635M15 and IS 1570 (Part 4) 16Ni3Cr2?
BS 970 (Part 3) 635M15 specifies P, S which are not specified for IS 1570 (Part 4) 16Ni3Cr2.
Can BS 970 (Part 3) 635M15 be substituted with IS 1570 (Part 4) 16Ni3Cr2?
BS 970 (Part 3) 635M15 and IS 1570 (Part 4) 16Ni3Cr2 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 4) 16Ni3Cr2 is often considered as a substitute for BS 970 (Part 3) 635M15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.