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BS 970 EN43 vs BS 970 EN42C

Close Alternative — 84.9% match based on chemical composition and mechanical property overlap.

BS 970 EN43 (BS 970:1955) and BS 970 EN42C (BS 970:1955) are both steel grades. Both fall under the Spring Steel category. BS 970 EN43 is defined under British Standards (BS), originating from United Kingdom, while BS 970 EN42C is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 EN43 vs BS 970 EN42C is a 87.4% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 84.9%.

Frequently Compared With BS 970 EN43:
EN 10083-1 51CrV4 IS 3195 113C6 IS 3195 50Cr4V2 EN 10089 50CrV4 EN 10083-3 51CrV4 EN 10083-1 51CrV4 IS 5517 55Cr3 BS 970 EN42B BS 970 EN42F IS 3431 50Cr4V2 IS 3195 52Cr4Mo2V EN 10089 55Cr3
Match Breakdown
CHEMISTRY MATCH
87.4%
MECHANICAL MATCH
No shared data
OVERALL
84.9%
Specifications
Property BS 970 EN43 BS 970 EN42C
Standard BS 970:1955 BS 970:1955
Category Spring Steel Spring Steel
C (%) 0.45-0.60 0.70-0.80
Si (%) 0.10-0.40 <=0.35
Mn (%) 0.60-0.80 0.55-0.80
S (%) <=0.050 <=0.050
P (%) <=0.050 <=0.050
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
BS 970 EN43
Bars for water hardening and tempering. Laminated spring plates to conform to dimensional requirements of Appendix C.
BS 970 EN42C
Not documented
Can BS 970 EN43 Be Substituted With BS 970 EN42C?
BS 970 EN43 and BS 970 EN42C are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
On M-EX Right Now
BS 970 EN43
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BS 970 EN42C
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Frequently Asked Questions
What is the difference between BS 970 EN43 and BS 970 EN42C?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN43 be substituted with BS 970 EN42C?
BS 970 EN43 and BS 970 EN42C are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.