Post Stock Login Register

IS 1570 (Part 4) 11C15 vs IS 11169 (Part 1) 27C15

Close Alternative — 84.9% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 4) 11C15 (IS 1570 (Part 4):1988) and IS 11169 (Part 1) 27C15 (IS 11169 (Part 1):1984) are both steel grades. Both fall under the Carbon Steel category. IS 1570 (Part 4) 11C15 is defined under Bureau of Indian Standards (IS), originating from India, while IS 11169 (Part 1) 27C15 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 1570 (Part 4) 11C15 vs IS 11169 (Part 1) 27C15 is a 91.4% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 84.9%.

Frequently Compared With IS 1570 (Part 4) 11C15:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A04 BS 970 (Part 3) 045A10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 060A32 BS 970 (Part 3) 080A15 BS 970 (Part 1) 045A10
Match Breakdown
CHEMISTRY MATCH
91.4%
MECHANICAL MATCH
No shared data
OVERALL
84.9%
Specifications
Property IS 1570 (Part 4) 11C15 IS 11169 (Part 1) 27C15
Standard IS 1570 (Part 4):1988 IS 11169 (Part 1):1984
Category Carbon Steel Carbon Steel
C (%) <=0.16 0.22-0.32
Si (%) 0.10-0.35 0.10-0.35
Mn (%) 1.30-1.70 1.30-1.70
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 4) 11C15 IS 11169 (Part 1) 27C15
Tensile Strength 460-560 MPa Not specified
Yield Strength >=270 MPa (0.2 % proof stress, if specified) Not specified
Elongation >=26% Not specified
Condition Hot rolled or normalized, limiting ruling section 100 mm Not specified
Hardness, annealed Not specified <=190 HB
Typical Applications
IS 1570 (Part 4) 11C15
Not documented
IS 11169 (Part 1) 27C15
Manganese case-hardening steel; used for gears, shafts, and machine components requiring case hardening where higher core strength than plain carbon grades is needed
Can IS 1570 (Part 4) 11C15 Be Substituted With IS 11169 (Part 1) 27C15?
IS 1570 (Part 4) 11C15 and IS 11169 (Part 1) 27C15 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
Forms & Sizes Available on M-EX
IS 1570 (Part 4) 11C15
No active listings currently.
IS 11169 (Part 1) 27C15
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 5600–5700 mm (220.47–224.41 in)
On M-EX Right Now
IS 1570 (Part 4) 11C15
0 active listings and RFQs →
IS 11169 (Part 1) 27C15
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 4) 11C15 and IS 11169 (Part 1) 27C15?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 1570 (Part 4) 11C15 be substituted with IS 11169 (Part 1) 27C15?
IS 1570 (Part 4) 11C15 and IS 11169 (Part 1) 27C15 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.