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BS 970 (Part 3) 637M17 vs IS 11169 (Part 1) 16Ni4Cr3

Strong Match — 93% match based on chemical composition and mechanical property overlap.

BS 970 (Part 3) 637M17 (BS 970 (Part 3):1991) and IS 11169 (Part 1) 16Ni4Cr3 (IS 11169 (Part 1):1984) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 3) 637M17 is typically used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; alloy case hardening steel (table 15), while IS 11169 (Part 1) 16Ni4Cr3 is commonly used for cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1). BS 970 (Part 3) 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 3) 637M17 vs IS 11169 (Part 1) 16Ni4Cr3 is a 93% 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 93%.

Frequently Compared With BS 970 (Part 3) 637M17:
EN 10084 10NiCr5-4 IS 11169 (Part 1) 10Ni5Cr4 GOST 4543 12HN3A IS 4367 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
93%
MECHANICAL MATCH
No shared data
OVERALL
93%
Specifications
Property BS 970 (Part 3) 637M17 IS 11169 (Part 1) 16Ni4Cr3
Standard BS 970 (Part 3):1991 IS 11169 (Part 1):1984
Category Alloy Steel Alloy Steel
C (%) 0.14-0.20 0.12-0.20
Si (%) 0.10-0.40 0.10-0.35
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
P (%) <=0.04 Not specified
S (%) <=0.05 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 BS 970 (Part 3) 637M17 IS 11169 (Part 1) 16Ni4Cr3
Core Tensile Strength Not specified >=850 MPa (30 mm) / >=800 MPa (60 mm) / >=750 MPa (90 mm)
Core Elongation Not specified >=12% (30 mm)
Hardness, annealed Not specified <=180 HB
Typical Applications
BS 970 (Part 3) 637M17
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; alloy case hardening steel (Table 15)
IS 11169 (Part 1) 16Ni4Cr3
Cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1)
Key Differences
Can BS 970 (Part 3) 637M17 Be Substituted With IS 11169 (Part 1) 16Ni4Cr3?
BS 970 (Part 3) 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 3) 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 3) 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 3) 637M17 and IS 11169 (Part 1) 16Ni4Cr3?
BS 970 (Part 3) 637M17 specifies P, S which are not specified for IS 11169 (Part 1) 16Ni4Cr3.
Can BS 970 (Part 3) 637M17 be substituted with IS 11169 (Part 1) 16Ni4Cr3?
BS 970 (Part 3) 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 3) 637M17 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.