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BS 970 EN39A vs IS 11169 (Part 1) 15Ni5Cr5

Strong Match — 89% match based on chemical composition and mechanical property overlap.

BS 970 EN39A (BS 970:1955) and IS 11169 (Part 1) 15Ni5Cr5 (IS 11169 (Part 1):2022) are both steel grades. Both fall under the Alloy Steel category. BS 970 EN39A is typically used for bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. suitable for tensile strength of 85 tons/sq in min., while IS 11169 (Part 1) 15Ni5Cr5 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 EN39A is defined under British Standards (BS), originating from United Kingdom, while IS 11169 (Part 1) 15Ni5Cr5 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 EN39A vs IS 11169 (Part 1) 15Ni5Cr5 is a 89% 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 89%.

Frequently Compared With BS 970 EN39A:
IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 07Cr4Mo6 IS 4367 10Cr9Mo10 IS 1570 (Part 7) 10Mo6H UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 10Mo6 IS 4367 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
89%
MECHANICAL MATCH
No shared data
OVERALL
89%
Specifications
Property BS 970 EN39A IS 11169 (Part 1) 15Ni5Cr5
Standard BS 970:1955 IS 11169 (Part 1):2022
Category Alloy Steel Alloy Steel
C (%) 0.12-0.18 0.12-0.18
Si (%) 0.10-0.35 0.10-0.35
Mn (%) <=0.50 0.40-0.70
Ni (%) 3.80-4.50 3.80-4.30
Cr (%) 1.00-1.40 1.00-1.40
S (%) <=0.050 <=0.035
P (%) <=0.050 <=0.035
Cu (%) Not specified <=0.15
Mo (%) Not specified <=0.05
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 EN39A IS 11169 (Part 1) 15Ni5Cr5
Tensile Strength ≥1313 MPa (85 tons/sq in, converted) Not specified
Elongation ≥12% Not specified
Condition Core, after heat treatment (lowest-strength condition of the standard) Not specified
Hardness, annealed (+AC) Not specified <=200 HBW
Typical Applications
BS 970 EN39A
Bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. Suitable for tensile strength of 85 tons/sq in min.
IS 11169 (Part 1) 15Ni5Cr5
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 EN39A Be Substituted With IS 11169 (Part 1) 15Ni5Cr5?
BS 970 EN39A and IS 11169 (Part 1) 15Ni5Cr5 overlap closely enough on chemistry and mechanical properties that IS 11169 (Part 1) 15Ni5Cr5 is often considered as a substitute for BS 970 EN39A in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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BS 970 EN39A
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IS 11169 (Part 1) 15Ni5Cr5
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Frequently Asked Questions
What is the difference between BS 970 EN39A and IS 11169 (Part 1) 15Ni5Cr5?
IS 11169 (Part 1) 15Ni5Cr5 specifies Cu, Mo which are not specified for BS 970 EN39A.
Can BS 970 EN39A be substituted with IS 11169 (Part 1) 15Ni5Cr5?
BS 970 EN39A and IS 11169 (Part 1) 15Ni5Cr5 overlap closely enough on chemistry and mechanical properties that IS 11169 (Part 1) 15Ni5Cr5 is often considered as a substitute for BS 970 EN39A in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.