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BS 970 (Part 1) 635H15 vs IS 1570 (Part 4) 16Ni3Cr2

Strong Match — 85.9% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 635H15 (BS 970 (Part 1):1983) 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 1) 635H15 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 1) 635H15 vs IS 1570 (Part 4) 16Ni3Cr2 is a 85.9% 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 85.9%.

Frequently Compared With BS 970 (Part 1) 635H15:
IS 11169 (Part 1) 10Ni5Cr4 UNI 11234 100Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 105Cr5 IS 11169 (Part 1) 12Ni3Cr2 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H IS 4367 07Cr4Mo6 NF A35-565 100C6
Match Breakdown
CHEMISTRY MATCH
85.9%
MECHANICAL MATCH
No shared data
OVERALL
85.9%
Specifications
Property BS 970 (Part 1) 635H15 IS 1570 (Part 4) 16Ni3Cr2
Standard BS 970 (Part 1):1983 IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) 0.12-0.18 0.12-0.20
Mn (%) 0.60-0.90 0.60-1.00
Cr (%) 0.40-0.80 0.40-0.80
Ni (%) 0.70-1.10 0.60-1.00
P (%) <=0.035 Not specified
S (%) <=0.040 Not specified
Si (%) Not specified 0.15-0.35
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 1) 635H15 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 1) 635H15
Case hardening steel supplied to specified hardenability limits (end quench test, Table 10).
IS 1570 (Part 4) 16Ni3Cr2
Not documented
Key Differences
Can BS 970 (Part 1) 635H15 Be Substituted With IS 1570 (Part 4) 16Ni3Cr2?
BS 970 (Part 1) 635H15 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 1) 635H15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
On M-EX Right Now
BS 970 (Part 1) 635H15
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IS 1570 (Part 4) 16Ni3Cr2
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 635H15 and IS 1570 (Part 4) 16Ni3Cr2?
BS 970 (Part 1) 635H15 specifies P, S which are not specified for IS 1570 (Part 4) 16Ni3Cr2. IS 1570 (Part 4) 16Ni3Cr2 specifies Si which is not specified for BS 970 (Part 1) 635H15.
Can BS 970 (Part 1) 635H15 be substituted with IS 1570 (Part 4) 16Ni3Cr2?
BS 970 (Part 1) 635H15 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 1) 635H15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.