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BS 970 (Part 3) 665M17 vs IS 11169 (Part 1) 20Ni7Mo2

Strong Match — 88.4% match based on chemical composition and mechanical property overlap.

BS 970 (Part 3) 665M17 (BS 970 (Part 3):1991) and IS 11169 (Part 1) 20Ni7Mo2 (IS 11169 (Part 1):1984) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 3) 665M17 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) 20Ni7Mo2 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) 665M17 is defined under British Standards (BS), originating from United Kingdom, while IS 11169 (Part 1) 20Ni7Mo2 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 (Part 3) 665M17 vs IS 11169 (Part 1) 20Ni7Mo2 is a 88.4% 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 88.4%.

Frequently Compared With BS 970 (Part 3) 665M17:
IS 1570 (Part 4) 105Cr5 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10 IS 1570 (Part 7) 10Mo6H IS 11169 (Part 1) 10Ni5Cr4 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
88.4%
MECHANICAL MATCH
No shared data
OVERALL
88.4%
Specifications
Property BS 970 (Part 3) 665M17 IS 11169 (Part 1) 20Ni7Mo2
Standard BS 970 (Part 3):1991 IS 11169 (Part 1):1984
Category Alloy Steel Alloy Steel
C (%) 0.14-0.20 0.17-0.22
Si (%) 0.10-0.40 0.10-0.35
Mn (%) 0.35-0.75 0.45-0.70
Mo (%) 0.20-0.30 0.20-0.30
Ni (%) 1.50-2.00 1.65-2.00
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) 665M17 IS 11169 (Part 1) 20Ni7Mo2
Core Tensile Strength Not specified >=850 MPa (30 mm) / >=700 MPa (60 mm)
Core Elongation Not specified >=12% (30 mm)
Hardness, annealed Not specified <=180 HB
Typical Applications
BS 970 (Part 3) 665M17
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) 20Ni7Mo2
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) 665M17 Be Substituted With IS 11169 (Part 1) 20Ni7Mo2?
BS 970 (Part 3) 665M17 and IS 11169 (Part 1) 20Ni7Mo2 overlap closely enough on chemistry and mechanical properties that IS 11169 (Part 1) 20Ni7Mo2 is often considered as a substitute for BS 970 (Part 3) 665M17 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) 665M17
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IS 11169 (Part 1) 20Ni7Mo2
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Frequently Asked Questions
What is the difference between BS 970 (Part 3) 665M17 and IS 11169 (Part 1) 20Ni7Mo2?
BS 970 (Part 3) 665M17 specifies P, S which are not specified for IS 11169 (Part 1) 20Ni7Mo2.
Can BS 970 (Part 3) 665M17 be substituted with IS 11169 (Part 1) 20Ni7Mo2?
BS 970 (Part 3) 665M17 and IS 11169 (Part 1) 20Ni7Mo2 overlap closely enough on chemistry and mechanical properties that IS 11169 (Part 1) 20Ni7Mo2 is often considered as a substitute for BS 970 (Part 3) 665M17 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.