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IS 1570 C20 vs BS 970 (Part 1) 045A10

Minimal Match — 52.6% match based on chemical composition and mechanical property overlap.

IS 1570 C20 (IS 1570:1961) and BS 970 (Part 1) 045A10 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Carbon Steel category. IS 1570 C20 is typically used for shafts, studs, pins, forged components, machinery parts, carburized parts, while BS 970 (Part 1) 045A10 is commonly used for case hardening steel (section four). IS 1570 C20 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 C20 vs BS 970 (Part 1) 045A10 is a 78.9% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 52.6%.

Frequently Compared With IS 1570 C20:
BS 970 (Part 1) 080A20 BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 3) 070M20 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 070M20 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A12
Match Breakdown
CHEMISTRY MATCH
78.9%
MECHANICAL MATCH
0%
OVERALL
52.6%
Specifications
Property IS 1570 C20 BS 970 (Part 1) 045A10
Standard IS 1570:1961 BS 970 (Part 1):1991
Category Carbon Steel Carbon Steel
C (%) 0.15-0.25 0.08-0.13
Mn (%) 0.60-0.90 0.30-0.60
Si (%) 0.15-0.35 Not specified
S (%) <=0.04 Not specified
P (%) <=0.04 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 1570 C20 BS 970 (Part 1) 045A10
Tensile Strength 440-520 MPa 430 MPa min
Yield Strength >=242 MPa Not specified
Elongation >=24% 18 % min
Hardness 121-156 HB Not specified
Condition Not specified Case hardened, 19 mm test bar
Typical Applications
IS 1570 C20
shafts, studs, pins, forged components, machinery parts, carburized parts
BS 970 (Part 1) 045A10
Case hardening steel (section four)
Key Differences
Can IS 1570 C20 Be Substituted With BS 970 (Part 1) 045A10?
IS 1570 C20 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.
Forms & Sizes Available on M-EX
IS 1570 C20
Round Bar → (5 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 4900–6900 mm (192.91–271.65 in)
BS 970 (Part 1) 045A10
No active listings currently.
On M-EX Right Now
IS 1570 C20
5 active listings and RFQs →
BS 970 (Part 1) 045A10
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Frequently Asked Questions
What is the difference between IS 1570 C20 and BS 970 (Part 1) 045A10?
IS 1570 C20 specifies Si, S, P which are not specified for BS 970 (Part 1) 045A10.
Can IS 1570 C20 be substituted with BS 970 (Part 1) 045A10?
IS 1570 C20 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.