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IS 3431 60Cr4V2 vs IS 1570 (Part 4) 55Si7

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

IS 3431 60Cr4V2 (IS 3431:1982) and IS 1570 (Part 4) 55Si7 (IS 1570 (Part 4):1988) are both steel grades. Both fall under the Spring Steel category. IS 3431 60Cr4V2 is defined under Bureau of Indian Standards (IS), originating from India, while IS 1570 (Part 4) 55Si7 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 3431 60Cr4V2 vs IS 1570 (Part 4) 55Si7 is a 71.7% 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 IS 3431 60Cr4V2:
IS 3195 50Cr4V2 IS 3431 50Cr4V2 IS 3195 60Cr4V2 EN 10083-1 51CrV4 IS 5517 55Cr3 EN 10089 50CrV4 IS 3195 52Cr4Mo2V GB/T 1222 55CrMnA EN 10083-3 51CrV4 IS 3195 113C6 EN 10089 55Cr3
Other Spring Steel Grades to Compare With IS 3431 60Cr4V2:
EN 10083-1 51CrV4
Match Breakdown
CHEMISTRY MATCH
71.7%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property IS 3431 60Cr4V2 IS 1570 (Part 4) 55Si7
Standard IS 3431:1982 IS 1570 (Part 4):1988
Category Spring Steel Spring Steel
C (%) 0.55-0.65 0.50-0.60
Cr (%) 0.90-1.20 Not specified
Mn (%) 0.80-1.00 0.80-1.00
P (%) <=0.045 Not specified
S (%) <=0.045 Not specified
Si (%) 0.15-0.35 1.50-2.00
V (%) >=0.15 Not specified
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 IS 1570 (Part 4) 55Si7
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)
IS 1570 (Part 4) 55Si7
Not documented
Key Differences
Can IS 3431 60Cr4V2 Be Substituted With IS 1570 (Part 4) 55Si7?
IS 3431 60Cr4V2 and IS 1570 (Part 4) 55Si7 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.
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IS 3431 60Cr4V2
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IS 1570 (Part 4) 55Si7
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Frequently Asked Questions
What is the difference between IS 3431 60Cr4V2 and IS 1570 (Part 4) 55Si7?
IS 3431 60Cr4V2 specifies Cr, P, S, V which are not specified for IS 1570 (Part 4) 55Si7.
Can IS 3431 60Cr4V2 be substituted with IS 1570 (Part 4) 55Si7?
IS 3431 60Cr4V2 and IS 1570 (Part 4) 55Si7 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.