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IS 4367 20C15 vs BS 970 (Part 1) 040A10

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

IS 4367 20C15 (IS 4367:1991) and BS 970 (Part 1) 040A10 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Carbon Steel category. IS 4367 20C15 is typically used for low-carbon case-hardening (carburizing) steel; used for lightly stressed components such as pins, bushes, and small shafts requiring a hard wear-resistant surface with a tough core, while BS 970 (Part 1) 040A10 is commonly used for used for bolts, studs, shafts, brackets, fabricated components, and general engineering parts.. IS 4367 20C15 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 040A10 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 4367 20C15 vs BS 970 (Part 1) 040A10 is a 78.3% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 69.9%.

Frequently Compared With IS 4367 20C15:
BS 970 (Part 3) 070M55 BS 970 (Part 1) 080A20 BS 970 (Part 3) 045A10 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A12 BS 970 (Part 3) 070M20 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 055M15
Match Breakdown
CHEMISTRY MATCH
78.3%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property IS 4367 20C15 BS 970 (Part 1) 040A10
Standard IS 4367:1991 BS 970 (Part 1):1991
Category Carbon Steel Carbon Steel
C (%) 0.16-0.24 0.08-0.13
Si (%) 0.10-0.35 Not specified
Mn (%) 1.30-1.70 0.30-0.50
S (%) <=0.035 Not specified
P (%) <=0.035 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 4367 20C15 BS 970 (Part 1) 040A10
Tensile Strength 600-750 MPa Not specified
Yield Strength 400 MPa min Not specified
Elongation >=18% Not specified
Izod Impact 50 J min Not specified
Hardness 178-221 HB Not specified
Hardness (soft annealed) <=200 HB Not specified
Condition Hardened and tempered, ruling section up to 63 mm Not specified
Typical Applications
IS 4367 20C15
Low-carbon case-hardening (carburizing) steel; used for lightly stressed components such as pins, bushes, and small shafts requiring a hard wear-resistant surface with a tough core
BS 970 (Part 1) 040A10
Used for bolts, studs, shafts, brackets, fabricated components, and general engineering parts.
Key Differences
Can IS 4367 20C15 Be Substituted With BS 970 (Part 1) 040A10?
IS 4367 20C15 and BS 970 (Part 1) 040A10 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 4367 20C15
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 4800–6300 mm (188.98–248.03 in)
BS 970 (Part 1) 040A10
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 4700–5500 mm (185.04–216.54 in)
On M-EX Right Now
IS 4367 20C15
2 active listings and RFQs →
BS 970 (Part 1) 040A10
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 4367 20C15 and BS 970 (Part 1) 040A10?
IS 4367 20C15 specifies Si, S, P which are not specified for BS 970 (Part 1) 040A10.
Can IS 4367 20C15 be substituted with BS 970 (Part 1) 040A10?
IS 4367 20C15 and BS 970 (Part 1) 040A10 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.