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BS 970 EN54A vs IS 1570 (Part 4) 40Cr5Mo6

Related Material — 55% match based on chemical composition and mechanical property overlap.

BS 970 EN54A (BS 970:1955) and IS 1570 (Part 4) 40Cr5Mo6 (IS 1570 (Part 4):1988) are both steel grades. BS 970 EN54A is classified under Stainless Steel, while IS 1570 (Part 4) 40Cr5Mo6 is classified under Alloy Steel — a different category, which is worth noting alongside the chemistry match below. BS 970 EN54A is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 4) 40Cr5Mo6 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 EN54A vs IS 1570 (Part 4) 40Cr5Mo6 is a 55% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 55%.

Frequently Compared With BS 970 EN54A:
ASTM A959 .- GB/T 3280 06Cr19Ni10 GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4401 EN 10088-1 1.4845 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo GOST 5632 06Kh23N28 EN 10088-1 1.4301
Match Breakdown
CHEMISTRY MATCH
55%
MECHANICAL MATCH
No shared data
OVERALL
55%
Specifications
Property BS 970 EN54A IS 1570 (Part 4) 40Cr5Mo6
Standard BS 970:1955 IS 1570 (Part 4):1988
Category Stainless Steel Alloy Steel
C (%) 0.37-0.47 0.35-0.45
Si (%) 1.00-2.00 0.10-0.35
Mn (%) 0.50-0.80 0.40-0.70
Ni (%) 13.0-15.0 <=0.40
Cr (%) 13.0-15.0 1.00-1.50
W (%) 2.2-3.0 Not specified
Mo (%) 0.40-0.60 0.50-0.70
Nb (%) 0.16-0.22 Not specified
S (%) <=0.045 Not specified
P (%) <=0.045 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Key Differences
Can BS 970 EN54A Be Substituted With IS 1570 (Part 4) 40Cr5Mo6?
BS 970 EN54A and IS 1570 (Part 4) 40Cr5Mo6 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 EN54A
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Frequently Asked Questions
What is the difference between BS 970 EN54A and IS 1570 (Part 4) 40Cr5Mo6?
Different category: BS 970 EN54A is Stainless Steel, IS 1570 (Part 4) 40Cr5Mo6 is Alloy Steel. BS 970 EN54A specifies W, Nb, S, P which are not specified for IS 1570 (Part 4) 40Cr5Mo6.
Can BS 970 EN54A be substituted with IS 1570 (Part 4) 40Cr5Mo6?
BS 970 EN54A and IS 1570 (Part 4) 40Cr5Mo6 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.