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IS 11169 (Part 1) 27C15 vs BS 970 (Part 3) 150M19

Strong Match — 91% match based on chemical composition and mechanical property overlap.

IS 11169 (Part 1) 27C15 (IS 11169 (Part 1):1984) and BS 970 (Part 3) 150M19 (BS 970 (Part 3):1991) are both steel grades. Both fall under the Carbon Steel category. IS 11169 (Part 1) 27C15 is typically used for manganese case-hardening steel; used for gears, shafts, and machine components requiring case hardening where higher core strength than plain carbon grades is needed, while BS 970 (Part 3) 150M19 is commonly used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; carbon and carbon manganese steel (table 13). IS 11169 (Part 1) 27C15 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 3) 150M19 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 11169 (Part 1) 27C15 vs BS 970 (Part 3) 150M19 is a 91% 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 91%.

Frequently Compared With IS 11169 (Part 1) 27C15:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 060A32 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045M10
Match Breakdown
CHEMISTRY MATCH
91%
MECHANICAL MATCH
No shared data
OVERALL
91%
Specifications
Property IS 11169 (Part 1) 27C15 BS 970 (Part 3) 150M19
Standard IS 11169 (Part 1):1984 BS 970 (Part 3):1991
Category Carbon Steel Carbon Steel
C (%) 0.22-0.32 0.15-0.23
Mn (%) 1.30-1.70 1.30-1.70
Si (%) 0.10-0.35 0.10-0.40
P (%) Not specified <=0.05
S (%) Not specified <=0.05
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 11169 (Part 1) 27C15 BS 970 (Part 3) 150M19
Hardness, annealed <=190 HB Not specified
Typical Applications
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
BS 970 (Part 3) 150M19
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; carbon and carbon manganese steel (Table 13)
Key Differences
Can IS 11169 (Part 1) 27C15 Be Substituted With BS 970 (Part 3) 150M19?
IS 11169 (Part 1) 27C15 and BS 970 (Part 3) 150M19 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 150M19 is often considered as a substitute for IS 11169 (Part 1) 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 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)
BS 970 (Part 3) 150M19
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On M-EX Right Now
IS 11169 (Part 1) 27C15
2 active listings and RFQs →
BS 970 (Part 3) 150M19
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Frequently Asked Questions
What is the difference between IS 11169 (Part 1) 27C15 and BS 970 (Part 3) 150M19?
BS 970 (Part 3) 150M19 specifies P, S which are not specified for IS 11169 (Part 1) 27C15.
Can IS 11169 (Part 1) 27C15 be substituted with BS 970 (Part 3) 150M19?
IS 11169 (Part 1) 27C15 and BS 970 (Part 3) 150M19 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 150M19 is often considered as a substitute for IS 11169 (Part 1) 27C15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.