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BS 970 (Part 1) 665M17 vs IS 4367 10Cr9Mo10

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 665M17 (BS 970 (Part 1):1991) and IS 4367 10Cr9Mo10 (IS 4367:1991) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 665M17 is defined under British Standards (BS), originating from United Kingdom, while IS 4367 10Cr9Mo10 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 (Part 1) 665M17 vs IS 4367 10Cr9Mo10 is a 57.9% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With BS 970 (Part 1) 665M17:
IS 1570 (Part 7) 10Mo6H UNI 11234 100Cr6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Mo6 IS 11169 (Part 1) 10Ni5Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
57.9%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property BS 970 (Part 1) 665M17 IS 4367 10Cr9Mo10
Standard BS 970 (Part 1):1991 IS 4367:1991
Category Alloy Steel Alloy Steel
C (%) 0.14-0.20 <=0.15
Mn (%) 0.35-0.75 0.40-0.70
Mo (%) 0.20-0.30 0.90-1.10
Ni (%) 1.50-2.00 <=0.30
Si (%) Not specified <=0.50
Cr (%) Not specified 2.00-2.50
S (%) Not specified <=0.035
P (%) Not specified <=0.035
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) 665M17 IS 4367 10Cr9Mo10
Condition Case hardened, 19 mm test bar Normalised and tempered, ruling section up to 50 mm
Tensile Strength 770 MPa min 410-590 MPa
Elongation 12 % min >=18%
Yield Strength Not specified 245 MPa min
Izod Impact Not specified 55 J min
Hardness (soft annealed) Not specified <=187 HB
Typical Applications
BS 970 (Part 1) 665M17
Case hardening steel (section four)
IS 4367 10Cr9Mo10
Not documented
Key Differences
Can BS 970 (Part 1) 665M17 Be Substituted With IS 4367 10Cr9Mo10?
BS 970 (Part 1) 665M17 and IS 4367 10Cr9Mo10 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.
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BS 970 (Part 1) 665M17
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IS 4367 10Cr9Mo10
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 665M17 and IS 4367 10Cr9Mo10?
IS 4367 10Cr9Mo10 specifies Si, Cr, S, P which are not specified for BS 970 (Part 1) 665M17.
Can BS 970 (Part 1) 665M17 be substituted with IS 4367 10Cr9Mo10?
BS 970 (Part 1) 665M17 and IS 4367 10Cr9Mo10 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.