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BS 970 (Part 1) 635M15 vs IS 11169 (Part 1) 12Ni3Cr2

Close Alternative — 70.4% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 635M15 (BS 970 (Part 1):1983) and IS 11169 (Part 1) 12Ni3Cr2 (IS 11169 (Part 1):2022) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 635M15 is typically used for case hardening steel for mechanical and allied engineering purposes (table 11 mechanical properties)., while IS 11169 (Part 1) 12Ni3Cr2 is commonly used for cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex b). BS 970 (Part 1) 635M15 is defined under British Standards (BS), originating from United Kingdom, while IS 11169 (Part 1) 12Ni3Cr2 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 (Part 1) 635M15 vs IS 11169 (Part 1) 12Ni3Cr2 is a 70.4% 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 70.4%.

Frequently Compared With BS 970 (Part 1) 635M15:
IS 11169 (Part 1) 10Ni5Cr4 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 NF A35-565 100C6 IS 1570 (Part 4) 105Cr5 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10 UNI 11234 100Cr6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 10Mo6
Match Breakdown
CHEMISTRY MATCH
70.4%
MECHANICAL MATCH
No shared data
OVERALL
70.4%
Specifications
Property BS 970 (Part 1) 635M15 IS 11169 (Part 1) 12Ni3Cr2
Standard BS 970 (Part 1):1983 IS 11169 (Part 1):2022
Category Alloy Steel Alloy Steel
C (%) 0.12-0.18 0.09-0.15
Mn (%) 0.60-0.90 0.30-0.60
Cr (%) 0.40-0.80 0.40-0.70
Ni (%) 0.70-1.10 0.50-0.80
P (%) <=0.035 <=0.025
S (%) <=0.040 <=0.025
Cu (%) Not specified <=0.25
Si (%) Not specified <=0.30
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) 635M15 IS 11169 (Part 1) 12Ni3Cr2
Hardness, ferrite-pearlite (+FP) Not specified 130-180 HB
Tensile Strength, annealed (+AC) Not specified <=500 MPa (over 5 to 40 mm)
Typical Applications
BS 970 (Part 1) 635M15
Case hardening steel for mechanical and allied engineering purposes (Table 11 mechanical properties).
IS 11169 (Part 1) 12Ni3Cr2
Cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex B)
Key Differences
Can BS 970 (Part 1) 635M15 Be Substituted With IS 11169 (Part 1) 12Ni3Cr2?
BS 970 (Part 1) 635M15 and IS 11169 (Part 1) 12Ni3Cr2 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.
On M-EX Right Now
BS 970 (Part 1) 635M15
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IS 11169 (Part 1) 12Ni3Cr2
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 635M15 and IS 11169 (Part 1) 12Ni3Cr2?
IS 11169 (Part 1) 12Ni3Cr2 specifies Cu, Si which are not specified for BS 970 (Part 1) 635M15.
Can BS 970 (Part 1) 635M15 be substituted with IS 11169 (Part 1) 12Ni3Cr2?
BS 970 (Part 1) 635M15 and IS 11169 (Part 1) 12Ni3Cr2 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.