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IS 3431 60Cr4V2 vs BS 970 EN50

Close Alternative — 78.3% match based on chemical composition and mechanical property overlap.

IS 3431 60Cr4V2 (IS 3431:1982) and BS 970 EN50 (BS 970:1955) are both steel grades. Both fall under the Spring Steel category. IS 3431 60Cr4V2 is typically used for volute, helical and laminated springs for automotive suspension; hot-rolled (also centreless ground or precision) bars and flats (clause 1.1), while BS 970 EN50 is commonly used for annealed wire for oil-hardened and tempered springs; covered by bs 1429.. IS 3431 60Cr4V2 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 EN50 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 3431 60Cr4V2 vs BS 970 EN50 is a 78.3% 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 78.3%.

Frequently Compared With IS 3431 60Cr4V2:
IS 3195 50Cr4V2 IS 3431 50Cr4V2 IS 3195 60Cr4V2 EN 10083-1 51CrV4 EN 10089 50CrV4 IS 3195 52Cr4Mo2V IS 5517 55Cr3 GB/T 1222 55CrMnA EN 10083-3 51CrV4 IS 3195 113C6 IS 1570 (Part 4) 55Si7
Other Spring Steel Grades to Compare With IS 3431 60Cr4V2:
EN 10083-1 51CrV4
Match Breakdown
CHEMISTRY MATCH
78.3%
MECHANICAL MATCH
No shared data
OVERALL
78.3%
Specifications
Property IS 3431 60Cr4V2 BS 970 EN50
Standard IS 3431:1982 BS 970:1955
Category Spring Steel Spring Steel
C (%) 0.55-0.65 0.40-0.50
Cr (%) 0.90-1.20 1.00-1.50
Mn (%) 0.80-1.00 0.50-0.70
P (%) <=0.045 <=0.040
S (%) <=0.045 <=0.040
Si (%) 0.15-0.35 0.10-0.35
V (%) >=0.15 >=0.15
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 3431 60Cr4V2 BS 970 EN50
Core Hardness After Quenching >=54 HRC (oil, up to 40 mm round / 25 mm flat) Not specified
Elongation (quenched and tempered) >=6% Not specified
Hardness, soft annealed <=255 HB Not specified
Hardness, untreated (hot rolled) above 310 HB (reference value) Not specified
Tensile Strength (quenched and tempered) 1370-1620 MPa Not specified
Yield Stress (quenched and tempered) >=1180 MPa Not specified
Typical Applications
IS 3431 60Cr4V2
Volute, helical and laminated springs for automotive suspension; hot-rolled (also centreless ground or precision) bars and flats (clause 1.1)
BS 970 EN50
Annealed wire for oil-hardened and tempered springs; covered by BS 1429.
Can IS 3431 60Cr4V2 Be Substituted With BS 970 EN50?
IS 3431 60Cr4V2 and BS 970 EN50 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.
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IS 3431 60Cr4V2
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BS 970 EN50
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Frequently Asked Questions
What is the difference between IS 3431 60Cr4V2 and BS 970 EN50?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 3431 60Cr4V2 be substituted with BS 970 EN50?
IS 3431 60Cr4V2 and BS 970 EN50 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.