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BS 970 (Part 1) 637M17 vs IS 11169 (Part 1) 16Ni4Cr3

Strong Match — 85.2% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 637M17 (BS 970 (Part 1):1991) and IS 11169 (Part 1) 16Ni4Cr3 (IS 11169 (Part 1):2022) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 637M17 is typically used for case hardening steel (section four), while IS 11169 (Part 1) 16Ni4Cr3 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) 637M17 is defined under British Standards (BS), originating from United Kingdom, while IS 11169 (Part 1) 16Ni4Cr3 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 (Part 1) 637M17 vs IS 11169 (Part 1) 16Ni4Cr3 is a 85.2% 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 85.2%.

Frequently Compared With BS 970 (Part 1) 637M17:
EN 10084 10NiCr5-4 IS 1570 (Part 4) 103Cr4 IS 4367 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H IS 11169 (Part 1) 10Ni5Cr4
Match Breakdown
CHEMISTRY MATCH
85.2%
MECHANICAL MATCH
No shared data
OVERALL
85.2%
Specifications
Property BS 970 (Part 1) 637M17 IS 11169 (Part 1) 16Ni4Cr3
Standard BS 970 (Part 1):1991 IS 11169 (Part 1):2022
Category Alloy Steel Alloy Steel
C (%) 0.14-0.20 0.12-0.20
Mn (%) 0.60-0.90 0.60-1.00
Cr (%) 0.60-1.00 0.60-1.00
Ni (%) 0.85-1.25 0.80-1.20
Cu (%) Not specified <=0.15
Mo (%) Not specified <=0.05
P (%) Not specified <=0.035
S (%) Not specified <=0.035
Si (%) Not specified 0.10-0.35
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) 637M17 IS 11169 (Part 1) 16Ni4Cr3
Condition Case hardened, 19 mm test bar Not specified
Tensile Strength 930 MPa min Not specified
Elongation 10 % min Not specified
Hardness, annealed (+AC) Not specified <=180 HBW
Typical Applications
BS 970 (Part 1) 637M17
Case hardening steel (section four)
IS 11169 (Part 1) 16Ni4Cr3
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) 637M17 Be Substituted With IS 11169 (Part 1) 16Ni4Cr3?
BS 970 (Part 1) 637M17 and IS 11169 (Part 1) 16Ni4Cr3 overlap closely enough on chemistry and mechanical properties that IS 11169 (Part 1) 16Ni4Cr3 is often considered as a substitute for BS 970 (Part 1) 637M17 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) 637M17
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IS 11169 (Part 1) 16Ni4Cr3
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 637M17 and IS 11169 (Part 1) 16Ni4Cr3?
IS 11169 (Part 1) 16Ni4Cr3 specifies Cu, Mo, P, S which are not specified for BS 970 (Part 1) 637M17.
Can BS 970 (Part 1) 637M17 be substituted with IS 11169 (Part 1) 16Ni4Cr3?
BS 970 (Part 1) 637M17 and IS 11169 (Part 1) 16Ni4Cr3 overlap closely enough on chemistry and mechanical properties that IS 11169 (Part 1) 16Ni4Cr3 is often considered as a substitute for BS 970 (Part 1) 637M17 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.