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IS 1570 (Part 2/Sec 1) 50C4 vs BS 970 (Part 1) 055M15

Related Material — 58.6% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 2/Sec 1) 50C4 (IS 1570 (Part 2/Sec 1):1979) and BS 970 (Part 1) 055M15 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Carbon Steel category. IS 1570 (Part 2/Sec 1) 50C4 is typically used for springs, wear parts, hand tools, shafts, gears, agricultural implements, while BS 970 (Part 1) 055M15 is commonly used for as-rolled, or as-rolled and softened, steel (section two). IS 1570 (Part 2/Sec 1) 50C4 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 055M15 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 1570 (Part 2/Sec 1) 50C4 vs BS 970 (Part 1) 055M15 is a 87.9% match. As per mechanical properties, the match is 0%. Combined, this makes them a related material overall at 58.6%.

Frequently Compared With IS 1570 (Part 2/Sec 1) 50C4:
BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A10 BS 970 (Part 1) 080A20 BS 970 (Part 3) 045M10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 040A12 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045M10 BS 970 (Part 1) 060A32
Match Breakdown
CHEMISTRY MATCH
87.9%
MECHANICAL MATCH
0%
OVERALL
58.6%
Specifications
Property IS 1570 (Part 2/Sec 1) 50C4 BS 970 (Part 1) 055M15
Standard IS 1570 (Part 2/Sec 1):1979 BS 970 (Part 1):1991
Category Carbon Steel Carbon Steel
C (%) 0.45-0.55 <=0.20
Mn (%) 0.30-0.60 <=0.80
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) 50C4 BS 970 (Part 1) 055M15
Tensile Strength 660-780 MPa 310 MPa min
Elongation >=13% 25 % min
Condition Not specified As-rolled
Hardness Not specified 121 HB min
Typical Applications
IS 1570 (Part 2/Sec 1) 50C4
springs, wear parts, hand tools, shafts, gears, agricultural implements
BS 970 (Part 1) 055M15
As-rolled, or as-rolled and softened, steel (section two)
Can IS 1570 (Part 2/Sec 1) 50C4 Be Substituted With BS 970 (Part 1) 055M15?
IS 1570 (Part 2/Sec 1) 50C4 and BS 970 (Part 1) 055M15 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.
Forms & Sizes Available on M-EX
IS 1570 (Part 2/Sec 1) 50C4
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 5600–6900 mm (220.47–271.65 in)
BS 970 (Part 1) 055M15
No active listings currently.
On M-EX Right Now
IS 1570 (Part 2/Sec 1) 50C4
2 active listings and RFQs →
BS 970 (Part 1) 055M15
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 2/Sec 1) 50C4 and BS 970 (Part 1) 055M15?
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) 50C4 be substituted with BS 970 (Part 1) 055M15?
IS 1570 (Part 2/Sec 1) 50C4 and BS 970 (Part 1) 055M15 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.