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BS 970 EN36A vs IS 1570 (Part 4) 103Cr6

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

BS 970 EN36A (BS 970:1955) and IS 1570 (Part 4) 103Cr6 (IS 1570 (Part 4):1988) are both steel grades. Both fall under the Alloy Steel category. BS 970 EN36A is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 4) 103Cr6 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 EN36A vs IS 1570 (Part 4) 103Cr6 is a 71% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With BS 970 EN36A:
IS 4367 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H NF A35-565 100C6 UNI 11234 100Cr6 IS 11169 (Part 1) 10Ni5Cr4
Match Breakdown
CHEMISTRY MATCH
71%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property BS 970 EN36A IS 1570 (Part 4) 103Cr6
Standard BS 970:1955 IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) <=0.15 0.95-1.10
Si (%) 0.10-0.35 0.10-0.35
Mn (%) 0.30-0.60 0.25-0.45
Ni (%) 3.00-3.75 Not specified
Cr (%) 0.60-1.10 1.40-1.60
S (%) <=0.050 Not specified
P (%) <=0.050 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 EN36A IS 1570 (Part 4) 103Cr6
Tensile Strength ≥849 MPa (55 tons/sq in, converted) Not specified
Elongation ≥15% Not specified
Condition Core, after heat treatment (lowest-strength condition of the standard) Not specified
Typical Applications
BS 970 EN36A
Bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. Suitable for tensile strengths of 55 (En 36A) and 65 (En 36B, En 36C) tons/sq in min.
IS 1570 (Part 4) 103Cr6
Not documented
Key Differences
Can BS 970 EN36A Be Substituted With IS 1570 (Part 4) 103Cr6?
BS 970 EN36A and IS 1570 (Part 4) 103Cr6 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
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BS 970 EN36A
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IS 1570 (Part 4) 103Cr6
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Frequently Asked Questions
What is the difference between BS 970 EN36A and IS 1570 (Part 4) 103Cr6?
BS 970 EN36A specifies Ni, S, P which are not specified for IS 1570 (Part 4) 103Cr6.
Can BS 970 EN36A be substituted with IS 1570 (Part 4) 103Cr6?
BS 970 EN36A and IS 1570 (Part 4) 103Cr6 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.