IS 3195 65Si7 vs BS 970 EN42B

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

IS 3195 65Si7 (IS 3195:1992) and BS 970 EN42B (BS 970:1955) are both steel grades. Both fall under the Spring Steel category. IS 3195 65Si7 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 EN42B is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 3195 65Si7 vs BS 970 EN42B is a 83.9% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 69.9%.

Frequently Compared With IS 3195 65Si7:
IS 1570 (Part 4) 65Si7 IS 3431 65Si7 EN 10083-1 51CrV4 EN 10083-1 51CrV4 IS 1570 (Part 4) 60Si7 IS 3195 60Si7 IS 3431 50Cr4V2 EN 10083-3 51CrV4 IS 3195 52Cr4Mo2V IS 1570 (Part 4) 55Si7 IS 3195 113C6 IS 3195 50Cr4V2
Match Breakdown
CHEMISTRY MATCH
83.9%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property IS 3195 65Si7 BS 970 EN42B
Standard IS 3195:1992 BS 970:1955
Category Spring Steel Spring Steel
C (%) 0.60-0.70 0.60-0.70
Mn (%) 0.80-1.00 0.55-0.80
P (%) <=0.030 <=0.050
S (%) <=0.030 <=0.050
Si (%) 1.50-2.00 <=0.35
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 3195 65Si7 BS 970 EN42B
Hardness, annealed <=245 HB Not specified
Hardness, untreated (hot rolled) about 255 HB (for guidance only) Not specified
Typical Applications
IS 3195 65Si7
Volute and helical springs for railway rolling stock; flats and rounds, springs worked hot and heat-treated (clause 1.1, foreword)
BS 970 EN42B
Not documented
Can IS 3195 65Si7 Be Substituted With BS 970 EN42B?
IS 3195 65Si7 and BS 970 EN42B 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 3195 65Si7
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BS 970 EN42B
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Frequently Asked Questions
What is the difference between IS 3195 65Si7 and BS 970 EN42B?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 3195 65Si7 be substituted with BS 970 EN42B?
IS 3195 65Si7 and BS 970 EN42B 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.