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BS 970 EN50 vs EN 10089 50CrV4

Close Alternative — 73.9% match based on chemical composition and mechanical property overlap.

BS 970 EN50 (BS 970:1955) and EN 10089 50CrV4 (EN 10089:2002) are both steel grades. Both fall under the Spring Steel category. BS 970 EN50 is typically used for annealed wire for oil-hardened and tempered springs; covered by bs 1429., while EN 10089 50CrV4 is commonly used for valve springs, high duty coil springs, hand tools. BS 970 EN50 is defined under British Standards (BS), originating from United Kingdom, while EN 10089 50CrV4 is defined under European Standard (EN), originating from Europe.

As per chemical composition, BS 970 EN50 vs EN 10089 50CrV4 is a 73.9% 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 73.9%.

Frequently Compared With BS 970 EN50:
EN 10083-3 51CrV4 EN 10083-1 51CrV4 IS 5517 55Cr3 EN 10089 55Cr3 IS 3431 50Cr4V2 IS 3195 50Cr4V2 EN 10083-1 51CrV4 IS 3431 60Cr4V2 IS 3195 60Cr4V2 IS 3195 113C6 IS 3195 52Cr4Mo2V GB/T 1222 55CrMnA
Match Breakdown
CHEMISTRY MATCH
73.9%
MECHANICAL MATCH
No shared data
OVERALL
73.9%
Specifications
Property BS 970 EN50 EN 10089 50CrV4
Standard BS 970:1955 EN 10089:2002
Category Spring Steel Spring Steel
C (%) 0.40-0.50 0.47–0.55
Si (%) 0.10-0.35 0.15–0.35
Mn (%) 0.50-0.70 0.70–1.10
Cr (%) 1.00-1.50 0.90–1.20
V (%) >=0.15 0.10–0.20
S (%) <=0.040 Not specified
P (%) <=0.040 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 EN50 EN 10089 50CrV4
Tensile Strength Not specified 1100–1300 MPa
Yield Strength Not specified ≥1000 MPa
Elongation Not specified ≥8%
Hardness Not specified 321–375 HB
Typical Applications
BS 970 EN50
Annealed wire for oil-hardened and tempered springs; covered by BS 1429.
EN 10089 50CrV4
Valve springs, high duty coil springs, hand tools
Key Differences
Can BS 970 EN50 Be Substituted With EN 10089 50CrV4?
BS 970 EN50 and EN 10089 50CrV4 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 EN50
No active listings currently.
EN 10089 50CrV4
Round Bar → (3 listings)
Diameter: 30–30 mm (1.18–1.18 in)
Length: 5000–6500 mm (196.85–255.91 in)
On M-EX Right Now
BS 970 EN50
0 active listings and RFQs →
EN 10089 50CrV4
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN50 and EN 10089 50CrV4?
BS 970 EN50 specifies S, P which are not specified for EN 10089 50CrV4.
Can BS 970 EN50 be substituted with EN 10089 50CrV4?
BS 970 EN50 and EN 10089 50CrV4 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.