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BS 970 EN42C vs EN 10083-3 51CrV4

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

BS 970 EN42C (BS 970:1955) and EN 10083-3 51CrV4 (EN 10083-3:2006) are both steel grades. Both fall under the Spring Steel category. BS 970 EN42C is defined under British Standards (BS), originating from United Kingdom, while EN 10083-3 51CrV4 is defined under European Standard (EN), originating from Europe.

As per chemical composition, BS 970 EN42C vs EN 10083-3 51CrV4 is a 69.4% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With BS 970 EN42C:
BS 970 EN42 BS 970 EN42D BS 970 EN42F BS 970 EN42G BS 970 EN42B BS 970 EN42E IS 3195 50Cr4V2 IS 3195 113C6 IS 3431 50Cr4V2 EN 10089 50CrV4 EN 10083-1 51CrV4 EN 10083-1 51CrV4
Match Breakdown
CHEMISTRY MATCH
69.4%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property BS 970 EN42C EN 10083-3 51CrV4
Standard BS 970:1955 EN 10083-3:2006
Category Spring Steel Spring Steel
C (%) 0.70-0.80 0.47-0.55
Si (%) <=0.35 <=0.40
Mn (%) 0.55-0.80 0.70-1.10
S (%) <=0.050 <=0.025
P (%) <=0.050 <=0.025
Cr (%) Not specified 0.90-1.20
V (%) Not specified 0.10-0.25
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 EN42C EN 10083-3 51CrV4
Condition Not specified Quenched and tempered (+QT), ruling section d <= 16 mm
Elongation Not specified 9% min
Hardness Not specified Soft annealed (+A): 248 HBW max
Tensile Strength Not specified 1100 to 1300 MPa
Yield Strength Not specified 900 MPa min
Typical Applications
BS 970 EN42C
Not documented
EN 10083-3 51CrV4
Valve springs, clutch springs, high duty coil springs
Key Differences
Can BS 970 EN42C Be Substituted With EN 10083-3 51CrV4?
BS 970 EN42C and EN 10083-3 51CrV4 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 EN42C
No active listings currently.
EN 10083-3 51CrV4
Round Bar → (3 listings)
Diameter: 30–30 mm (1.18–1.18 in)
Length: 6300–7000 mm (248.03–275.59 in)
On M-EX Right Now
BS 970 EN42C
0 active listings and RFQs →
EN 10083-3 51CrV4
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN42C and EN 10083-3 51CrV4?
EN 10083-3 51CrV4 specifies Cr, V which are not specified for BS 970 EN42C.
Can BS 970 EN42C be substituted with EN 10083-3 51CrV4?
BS 970 EN42C and EN 10083-3 51CrV4 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.