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IS 4367 35Ni5Cr2 vs BS 970 (Part 1) 637H17

Close Alternative — 72.5% match based on chemical composition and mechanical property overlap.

IS 4367 35Ni5Cr2 (IS 4367:1991) and BS 970 (Part 1) 637H17 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Alloy Steel category. IS 4367 35Ni5Cr2 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 637H17 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 4367 35Ni5Cr2 vs BS 970 (Part 1) 637H17 is a 72.5% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 72.5%.

Frequently Compared With IS 4367 35Ni5Cr2:
IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 4367 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H IS 1570 (Part 4) 07Cr4Mo6 UNI 11234 100Cr6 IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
72.5%
MECHANICAL MATCH
No shared data
OVERALL
72.5%
Specifications
Property IS 4367 35Ni5Cr2 BS 970 (Part 1) 637H17
Standard IS 4367:1991 BS 970 (Part 1):1991
Category Alloy Steel Alloy Steel
C (%) 0.30-0.40 0.14-0.20
Si (%) 0.10-0.35 Not specified
Mn (%) 0.60-0.90 0.60-0.90
Ni (%) 1.00-1.50 0.85-1.25
Cr (%) 0.45-0.75 0.60-1.00
S (%) <=0.035 Not specified
P (%) <=0.035 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 IS 4367 35Ni5Cr2 BS 970 (Part 1) 637H17
Tensile Strength 700-850 MPa Not specified
Yield Strength 540 MPa min Not specified
Elongation >=18% Not specified
Izod Impact 55 J min Not specified
Hardness 208-252 HB Not specified
Hardness (soft annealed) <=220 HB Not specified
Condition Hardened and tempered, ruling section up to 150 mm Not specified
Typical Applications
IS 4367 35Ni5Cr2
Not documented
BS 970 (Part 1) 637H17
Case hardening steel (section four)
Key Differences
Can IS 4367 35Ni5Cr2 Be Substituted With BS 970 (Part 1) 637H17?
IS 4367 35Ni5Cr2 and BS 970 (Part 1) 637H17 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
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IS 4367 35Ni5Cr2
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BS 970 (Part 1) 637H17
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Frequently Asked Questions
What is the difference between IS 4367 35Ni5Cr2 and BS 970 (Part 1) 637H17?
IS 4367 35Ni5Cr2 specifies Si, S, P which are not specified for BS 970 (Part 1) 637H17.
Can IS 4367 35Ni5Cr2 be substituted with BS 970 (Part 1) 637H17?
IS 4367 35Ni5Cr2 and BS 970 (Part 1) 637H17 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.