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IS 1570 (Part 2/Sec 1) 20C8 vs IS 1570 C20

Strong Match — 95.4% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 2/Sec 1) 20C8 (IS 1570 (Part 2/Sec 1):1979) and IS 1570 C20 (IS 1570:1961) are both steel grades. Both fall under the Carbon Steel category. IS 1570 (Part 2/Sec 1) 20C8 is typically used for billets and bars for forgings and carbon steel forgings (the standard links this grade to is 1875, is 2004), while IS 1570 C20 is commonly used for shafts, studs, pins, forged components, machinery parts, carburized parts. IS 1570 (Part 2/Sec 1) 20C8 is defined under Bureau of Indian Standards (IS), originating from India, while IS 1570 C20 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 1570 (Part 2/Sec 1) 20C8 vs IS 1570 C20 is a 93.1% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 95.4%.

Frequently Compared With IS 1570 (Part 2/Sec 1) 20C8:
BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A10 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 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15
Match Breakdown
CHEMISTRY MATCH
93.1%
MECHANICAL MATCH
100%
OVERALL
95.4%
Specifications
Property IS 1570 (Part 2/Sec 1) 20C8 IS 1570 C20
Standard IS 1570 (Part 2/Sec 1):1979 IS 1570:1961
Category Carbon Steel Carbon Steel
C (%) 0.15-0.25 0.15-0.25
Mn (%) 0.60-0.90 0.60-0.90
Si (%) Not specified 0.15-0.35
S (%) Not specified <=0.04
P (%) Not specified <=0.04
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) 20C8 IS 1570 C20
Tensile Strength 440-520 MPa 440-520 MPa
Elongation >=24% >=24%
Yield Strength Not specified >=242 MPa
Hardness Not specified 121-156 HB
Typical Applications
IS 1570 (Part 2/Sec 1) 20C8
Billets and bars for forgings and carbon steel forgings (the standard links this grade to IS 1875, IS 2004)
IS 1570 C20
shafts, studs, pins, forged components, machinery parts, carburized parts
Key Differences
Can IS 1570 (Part 2/Sec 1) 20C8 Be Substituted With IS 1570 C20?
IS 1570 (Part 2/Sec 1) 20C8 and IS 1570 C20 overlap closely enough on chemistry and mechanical properties that IS 1570 C20 is often considered as a substitute for IS 1570 (Part 2/Sec 1) 20C8 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 (Part 2/Sec 1) 20C8
No active listings currently.
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)
On M-EX Right Now
IS 1570 (Part 2/Sec 1) 20C8
0 active listings and RFQs →
IS 1570 C20
5 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 2/Sec 1) 20C8 and IS 1570 C20?
IS 1570 C20 specifies Si, S, P which are not specified for IS 1570 (Part 2/Sec 1) 20C8.
Can IS 1570 (Part 2/Sec 1) 20C8 be substituted with IS 1570 C20?
IS 1570 (Part 2/Sec 1) 20C8 and IS 1570 C20 overlap closely enough on chemistry and mechanical properties that IS 1570 C20 is often considered as a substitute for IS 1570 (Part 2/Sec 1) 20C8 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.