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IS 5517 27C15 vs IS 4367 20C15

Strong Match — 86.7% match based on chemical composition and mechanical property overlap.

IS 5517 27C15 (IS 5517:1993) and IS 4367 20C15 (IS 4367:1991) are both steel grades. Both fall under the Carbon Steel category. IS 5517 27C15 is defined under Bureau of Indian Standards (IS), originating from India, while IS 4367 20C15 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 5517 27C15 vs IS 4367 20C15 is a 92.5% match. As per mechanical properties, the match is 75%. Combined, this makes them a strong match overall at 86.7%.

Frequently Compared With IS 5517 27C15:
BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A32 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045M10
Match Breakdown
CHEMISTRY MATCH
92.5%
MECHANICAL MATCH
75%
OVERALL
86.7%
Specifications
Property IS 5517 27C15 IS 4367 20C15
Standard IS 5517:1993 IS 4367:1991
Category Carbon Steel Carbon Steel
C (%) 0.22-0.32 0.16-0.24
Si (%) 0.10-0.35 0.10-0.35
Mn (%) 1.30-1.70 1.30-1.70
S (%) <=0.035 <=0.035
P (%) <=0.035 <=0.035
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 5517 27C15 IS 4367 20C15
Tensile Strength 600-750 MPa 600-750 MPa
Yield Strength (0.2% proof) 440 MPa min Not specified
Elongation >=18% >=18%
Izod Impact 48 J min 50 J min
Hardness (annealed) <=200 HB Not specified
Condition Hardened and tempered, ruling section up to 63 mm Hardened and tempered, ruling section up to 63 mm
Yield Strength Not specified 400 MPa min
Hardness Not specified 178-221 HB
Hardness (soft annealed) Not specified <=200 HB
Typical Applications
IS 5517 27C15
Not documented
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
Can IS 5517 27C15 Be Substituted With IS 4367 20C15?
IS 5517 27C15 and IS 4367 20C15 overlap closely enough on chemistry and mechanical properties that IS 4367 20C15 is often considered as a substitute for IS 5517 27C15 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 5517 27C15
No active listings currently.
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)
On M-EX Right Now
IS 5517 27C15
0 active listings and RFQs →
IS 4367 20C15
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 5517 27C15 and IS 4367 20C15?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 5517 27C15 be substituted with IS 4367 20C15?
IS 5517 27C15 and IS 4367 20C15 overlap closely enough on chemistry and mechanical properties that IS 4367 20C15 is often considered as a substitute for IS 5517 27C15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.