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IS 1570 (Part 2/Sec 1) 25C4 vs BS 970 (Part 1) 045A10

Related Material — 61% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 2/Sec 1) 25C4 (IS 1570 (Part 2/Sec 1):1979) and BS 970 (Part 1) 045A10 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Carbon Steel category. IS 1570 (Part 2/Sec 1) 25C4 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 045A10 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 1570 (Part 2/Sec 1) 25C4 vs BS 970 (Part 1) 045A10 is a 91.4% match. As per mechanical properties, the match is 0%. Combined, this makes them a related material overall at 61%.

Frequently Compared With IS 1570 (Part 2/Sec 1) 25C4:
BS 970 (Part 1) 080A20 BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A32 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A12
Match Breakdown
CHEMISTRY MATCH
91.4%
MECHANICAL MATCH
0%
OVERALL
61%
Specifications
Property IS 1570 (Part 2/Sec 1) 25C4 BS 970 (Part 1) 045A10
Standard IS 1570 (Part 2/Sec 1):1979 BS 970 (Part 1):1991
Category Carbon Steel Carbon Steel
C (%) 0.20-0.30 0.08-0.13
Mn (%) 0.30-0.60 0.30-0.60
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 1570 (Part 2/Sec 1) 25C4 BS 970 (Part 1) 045A10
Tensile Strength 440-540 MPa 430 MPa min
Elongation >=23% 18 % min
Condition Not specified Case hardened, 19 mm test bar
Typical Applications
IS 1570 (Part 2/Sec 1) 25C4
Not documented
BS 970 (Part 1) 045A10
Case hardening steel (section four)
Can IS 1570 (Part 2/Sec 1) 25C4 Be Substituted With BS 970 (Part 1) 045A10?
IS 1570 (Part 2/Sec 1) 25C4 and BS 970 (Part 1) 045A10 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 1570 (Part 2/Sec 1) 25C4
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BS 970 (Part 1) 045A10
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Frequently Asked Questions
What is the difference between IS 1570 (Part 2/Sec 1) 25C4 and BS 970 (Part 1) 045A10?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 1570 (Part 2/Sec 1) 25C4 be substituted with BS 970 (Part 1) 045A10?
IS 1570 (Part 2/Sec 1) 25C4 and BS 970 (Part 1) 045A10 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.