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BS 970 EN47 vs BS 970 EN48

Strong Match — 87.2% match based on chemical composition and mechanical property overlap.

BS 970 EN47 (BS 970:1955) and BS 970 EN48 (BS 970:1955) 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 BS 970 EN48 is commonly used for high duty springs, valve springs. BS 970 EN47 is defined under British Standards (BS), originating from United Kingdom, while BS 970 EN48 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 EN47 vs BS 970 EN48 is a 87.2% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 87.2%.

Frequently Compared With BS 970 EN47:
IS 5517 55Cr3 EN 10089 55Cr3 IS 3431 50Cr4V2 EN 10083-3 51CrV4 EN 10089 50CrV4 EN 10083-1 51CrV4 EN 10083-1 51CrV4 GB/T 1222 55CrMnA IS 3195 50Cr4V2 IS 3195 113C6 IS 1570 (Part 4) 55Si7 IS 3431 60Cr4V2
Match Breakdown
CHEMISTRY MATCH
87.2%
MECHANICAL MATCH
No shared data
OVERALL
87.2%
Specifications
Property BS 970 EN47 BS 970 EN48
Standard BS 970:1955 BS 970:1955
Category Spring Steel Spring Steel
C (%) 0.45-0.55 0.45-0.55
Si (%) <=0.50 0.10-0.50
Mn (%) 0.50-0.80 0.50-0.80
Cr (%) 0.80-1.20 1.00-1.40
V (%) >=0.15 Not specified
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 EN47
Coil springs, leaf springs, torsion bars, valve springs, suspension springs, industrial springs requiring high fatigue life.
BS 970 EN48
High duty springs, valve springs
Key Differences
Can BS 970 EN47 Be Substituted With BS 970 EN48?
BS 970 EN47 and BS 970 EN48 overlap closely enough on chemistry and mechanical properties that BS 970 EN48 is often considered as a substitute for BS 970 EN47 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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)
BS 970 EN48
Flat Bar → (3 listings)
Thickness: 30–30 mm (1.18–1.18 in)
Width: 150–150 mm (5.91–5.91 in)
Length: 2500–2800 mm (98.43–110.24 in)
On M-EX Right Now
BS 970 EN47
4 active listings and RFQs →
BS 970 EN48
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN47 and BS 970 EN48?
BS 970 EN47 specifies V which is not specified for BS 970 EN48.
Can BS 970 EN47 be substituted with BS 970 EN48?
BS 970 EN47 and BS 970 EN48 overlap closely enough on chemistry and mechanical properties that BS 970 EN48 is often considered as a substitute for BS 970 EN47 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.