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IS 1570 C20 vs BS 970 (Part 1) 080A20

Strong Match — 87% match based on chemical composition and mechanical property overlap.

IS 1570 C20 (IS 1570:1961) and BS 970 (Part 1) 080A20 (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) 080A20 is commonly used for used for nuts, bolts, hydraulic fittings, precision turned parts, sleeves, and couplings.. IS 1570 C20 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 080A20 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 1570 C20 vs BS 970 (Part 1) 080A20 is a 87% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 87%.

Frequently Compared With IS 1570 C20:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 3) 070M20 BS 970 (Part 3) 045M10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 070M20 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 040A12
Match Breakdown
CHEMISTRY MATCH
87%
MECHANICAL MATCH
No shared data
OVERALL
87%
Specifications
Property IS 1570 C20 BS 970 (Part 1) 080A20
Standard IS 1570:1961 BS 970 (Part 1):1991
Category Carbon Steel Carbon Steel
C (%) 0.15-0.25 0.18-0.23
Mn (%) 0.60-0.90 0.70-0.90
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) 080A20
Tensile Strength 440-520 MPa Not specified
Yield Strength >=242 MPa Not specified
Elongation >=24% Not specified
Hardness 121-156 HB Not specified
Typical Applications
IS 1570 C20
shafts, studs, pins, forged components, machinery parts, carburized parts
BS 970 (Part 1) 080A20
Used for nuts, bolts, hydraulic fittings, precision turned parts, sleeves, and couplings.
Key Differences
Can IS 1570 C20 Be Substituted With BS 970 (Part 1) 080A20?
IS 1570 C20 and BS 970 (Part 1) 080A20 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 080A20 is often considered as a substitute for IS 1570 C20 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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) 080A20
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 4800–6600 mm (188.98–259.84 in)
On M-EX Right Now
IS 1570 C20
5 active listings and RFQs →
BS 970 (Part 1) 080A20
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 C20 and BS 970 (Part 1) 080A20?
IS 1570 C20 specifies Si, S, P which are not specified for BS 970 (Part 1) 080A20.
Can IS 1570 C20 be substituted with BS 970 (Part 1) 080A20?
IS 1570 C20 and BS 970 (Part 1) 080A20 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 080A20 is often considered as a substitute for IS 1570 C20 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.