Post Stock Login Register

BS 970 EN49A vs EN 10083-1 51CrV4

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

BS 970 EN49A (BS 970:1955) and EN 10083-1 51CrV4 (EN 10083-1:1991) are both steel grades. Both fall under the Spring Steel category. BS 970 EN49A is defined under British Standards (BS), originating from United Kingdom, while EN 10083-1 51CrV4 is defined under European Standard (EN), originating from Europe.

As per chemical composition, BS 970 EN49A vs EN 10083-1 51CrV4 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 minimal match overall at 35%.

Frequently Compared With BS 970 EN49A:
BS 970 EN42F IS 3195 113C6 EN 10089 50CrV4 IS 5517 55Cr3 IS 3195 50Cr4V2 EN 10083-3 51CrV4 EN 10083-1 51CrV4 EN 10089 55Cr3 BS 970 EN42B IS 3431 50Cr4V2 IS 3195 52Cr4Mo2V BS 970 EN42E
Match Breakdown
CHEMISTRY MATCH
71.5%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property BS 970 EN49A EN 10083-1 51CrV4
Standard BS 970:1955 EN 10083-1:1991
Category Spring Steel Spring Steel
C (%) 0.40-0.85 0.47-0.55
Si (%) <=0.30 <=0.40
Mn (%) <=1.00 0.70-1.10
S (%) <=0.050 <=0.035
P (%) <=0.050 <=0.035
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 EN49A EN 10083-1 51CrV4
Condition Not specified Quenched and tempered, ruling section d <= 16 mm
Elongation Not specified 9% min
Hardness Not specified Soft annealed: 248 HB max
Tensile Strength Not specified 1100 to 1300 MPa
Yield Strength Not specified 900 MPa min
Typical Applications
BS 970 EN49A
Not documented
EN 10083-1 51CrV4
Quenched and tempered machine parts; non alloy steels also normalized (clause 1)
Key Differences
Can BS 970 EN49A Be Substituted With EN 10083-1 51CrV4?
BS 970 EN49A and EN 10083-1 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.
On M-EX Right Now
BS 970 EN49A
0 active listings and RFQs →
EN 10083-1 51CrV4
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN49A and EN 10083-1 51CrV4?
EN 10083-1 51CrV4 specifies Cr, V which are not specified for BS 970 EN49A.
Can BS 970 EN49A be substituted with EN 10083-1 51CrV4?
BS 970 EN49A and EN 10083-1 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.