Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
BS 970 EN46 (BS 970:1955) and IS 3431 50Cr4V2 (IS 3431:1982) are both steel grades.
Both fall under the Spring Steel category.
BS 970 EN46 is typically used for bars for water hardening and tempering. laminated spring plates to this specification shall conform to the dimensional requirements in appendix c., while IS 3431 50Cr4V2 is commonly used for valve springs,high performance automotive springs,aerospace springs,coil springs,torsion bars.
BS 970 EN46 is defined under British Standards (BS), originating from United Kingdom, while IS 3431 50Cr4V2 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, BS 970 EN46 vs IS 3431 50Cr4V2 is a 64.4% 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%.
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 EN46
IS 3431 50Cr4V2
Core Hardness After Quenching
Not specified
>=54 HRC (oil, up to 25 mm round / 16 mm flat)
Elongation (quenched and tempered)
Not specified
>=6%
Hardness, soft annealed
Not specified
<=245 HB
Hardness, untreated (hot rolled)
Not specified
above 310 HB (reference value)
Tensile Strength (quenched and tempered)
Not specified
1370-1620 MPa
Yield Stress (quenched and tempered)
Not specified
>=1180 MPa
Typical Applications
BS 970 EN46
Bars for water hardening and tempering. Laminated spring plates to this specification shall conform to the dimensional requirements in Appendix C.
IS 3431 50Cr4V2 specifies Cr, V which are not specified for BS 970 EN46.
Can BS 970 EN46 Be Substituted With IS 3431 50Cr4V2?
BS 970 EN46 and IS 3431 50Cr4V2 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.
What is the difference between BS 970 EN46 and IS 3431 50Cr4V2?
IS 3431 50Cr4V2 specifies Cr, V which are not specified for BS 970 EN46.
Can BS 970 EN46 be substituted with IS 3431 50Cr4V2?
BS 970 EN46 and IS 3431 50Cr4V2 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.