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BS 970 EN48A vs EN 10089 55Cr3

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

BS 970 EN48A (BS 970:1955) and EN 10089 55Cr3 (EN 10089:2002) are both steel grades. Both fall under the Spring Steel category. BS 970 EN48A is typically used for bars for oil hardening and tempering. laminated spring plates to this specification shall conform to the dimensional requirements in appendix c., while EN 10089 55Cr3 is commonly used for automotive leaf springs, heavy coil springs. BS 970 EN48A is defined under British Standards (BS), originating from United Kingdom, while EN 10089 55Cr3 is defined under European Standard (EN), originating from Europe.

As per chemical composition, BS 970 EN48A vs EN 10089 55Cr3 is a 84% 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 69.9%.

Frequently Compared With BS 970 EN48A:
IS 5517 55Cr3 EN 10083-3 51CrV4 GB/T 1222 55CrMnA IS 3195 113C6 IS 3431 50Cr4V2 IS 3195 50Cr4V2 EN 10089 50CrV4 EN 10083-1 51CrV4 EN 10083-1 51CrV4 IS 3195 52Cr4Mo2V IS 1570 (Part 4) 55Si7 IS 4367 55Si7
Match Breakdown
CHEMISTRY MATCH
84%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property BS 970 EN48A EN 10089 55Cr3
Standard BS 970:1955 EN 10089:2002
Category Spring Steel Spring Steel
C (%) 0.50-0.60 0.52–0.59
Si (%) 1.35-1.65 0.15–0.35
Mn (%) 0.60-0.90 0.70–1.00
Cr (%) 0.55-0.85 0.60–0.90
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 EN48A EN 10089 55Cr3
Tensile Strength Not specified 1100–1350 MPa
Yield Strength Not specified ≥1000 MPa
Elongation Not specified ≥6%
Hardness Not specified 321–388 HB
Typical Applications
BS 970 EN48A
Bars for oil hardening and tempering. Laminated spring plates to this specification shall conform to the dimensional requirements in Appendix C.
EN 10089 55Cr3
Automotive leaf springs, heavy coil springs
Key Differences
Can BS 970 EN48A Be Substituted With EN 10089 55Cr3?
BS 970 EN48A and EN 10089 55Cr3 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.
Forms & Sizes Available on M-EX
BS 970 EN48A
No active listings currently.
EN 10089 55Cr3
Round Bar → (3 listings)
Diameter: 30–30 mm (1.18–1.18 in)
Length: 5100–6600 mm (200.79–259.84 in)
On M-EX Right Now
BS 970 EN48A
0 active listings and RFQs →
EN 10089 55Cr3
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN48A and EN 10089 55Cr3?
BS 970 EN48A specifies S, P which are not specified for EN 10089 55Cr3.
Can BS 970 EN48A be substituted with EN 10089 55Cr3?
BS 970 EN48A and EN 10089 55Cr3 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.