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BS 970 EN47 vs EN 10089 55Cr3

Close Alternative — 71.5% match based on chemical composition and mechanical property overlap.

BS 970 EN47 (BS 970:1955) and EN 10089 55Cr3 (EN 10089:2002) are both steel grades. Both fall under the Spring Steel category. BS 970 EN47 is typically used for coil springs, leaf springs, torsion bars, valve springs, suspension springs, industrial springs requiring high fatigue life., while EN 10089 55Cr3 is commonly used for automotive leaf springs, heavy coil springs. BS 970 EN47 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 EN47 vs EN 10089 55Cr3 is a 71.5% 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 71.5%.

Frequently Compared With BS 970 EN47:
IS 5517 55Cr3 EN 10083-3 51CrV4 IS 3431 50Cr4V2 EN 10089 50CrV4 EN 10083-1 51CrV4 EN 10083-1 51CrV4 IS 3195 50Cr4V2 GB/T 1222 55CrMnA IS 3195 113C6 IS 1570 (Part 4) 55Si7 IS 3431 60Cr4V2 IS 3195 60Cr4V2
Match Breakdown
CHEMISTRY MATCH
71.5%
MECHANICAL MATCH
No shared data
OVERALL
71.5%
Specifications
Property BS 970 EN47 EN 10089 55Cr3
Standard BS 970:1955 EN 10089:2002
Category Spring Steel Spring Steel
C (%) 0.45-0.55 0.52–0.59
Si (%) <=0.50 0.15–0.35
Mn (%) 0.50-0.80 0.70–1.00
Cr (%) 0.80-1.20 0.60–0.90
V (%) >=0.15 Not specified
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 EN47 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 EN47
Coil springs, leaf springs, torsion bars, valve springs, suspension springs, industrial springs requiring high fatigue life.
EN 10089 55Cr3
Automotive leaf springs, heavy coil springs
Key Differences
Can BS 970 EN47 Be Substituted With EN 10089 55Cr3?
BS 970 EN47 and EN 10089 55Cr3 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.
Forms & Sizes Available on M-EX
BS 970 EN47
Round Bar → (4 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 5700–6400 mm (224.41–251.97 in)
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 EN47
4 active listings and RFQs →
EN 10089 55Cr3
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN47 and EN 10089 55Cr3?
BS 970 EN47 specifies V, S, P which are not specified for EN 10089 55Cr3.
Can BS 970 EN47 be substituted with EN 10089 55Cr3?
BS 970 EN47 and EN 10089 55Cr3 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.