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IS 1570 (Part 3) 11C10S25 vs BS 970 (Part 1) 210M15

Close Alternative — 82.4% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 3) 11C10S25 (IS 1570 (Part 3):1979) and BS 970 (Part 1) 210M15 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Free Machining Steel category. IS 1570 (Part 3) 11C10S25 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 210M15 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 1570 (Part 3) 11C10S25 vs BS 970 (Part 1) 210M15 is a 82.4% 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 82.4%.

Frequently Compared With IS 1570 (Part 3) 11C10S25:
IS 1570 (Part 3) 10C8S10 SAE J403 1117 IS 4432 10C8S10 SAE J403 1117 SAE J403 1117 SAE J403 1118 SAE J403 1118 SAE J403 1126 SAE J403 1118 SAE J403 1126 SAE J403 1126 SAE J403 1132
Match Breakdown
CHEMISTRY MATCH
82.4%
MECHANICAL MATCH
No shared data
OVERALL
82.4%
Specifications
Property IS 1570 (Part 3) 11C10S25 BS 970 (Part 1) 210M15
Standard IS 1570 (Part 3):1979 BS 970 (Part 1):1983
Category Free Machining Steel Free Machining Steel
C (%) 0.08-0.15 0.12-0.18
Si (%) <=0.10 Not specified
Mn (%) 0.80-1.20 0.90-1.30
P (%) <=0.060 <=0.050
S (%) 0.20-0.30 0.10-0.18
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 3) 11C10S25 BS 970 (Part 1) 210M15
Tensile Strength 370-490 MPa Not specified
Elongation >=22% Not specified
Condition Hot rolled or normalized bars, billets and forgings (Table 2), ruling sections up to 150 mm Not specified
Typical Applications
IS 1570 (Part 3) 11C10S25
Not documented
BS 970 (Part 1) 210M15
Case hardening steel for mechanical and allied engineering purposes (Table 11 mechanical properties).
Key Differences
Can IS 1570 (Part 3) 11C10S25 Be Substituted With BS 970 (Part 1) 210M15?
IS 1570 (Part 3) 11C10S25 and BS 970 (Part 1) 210M15 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.
On M-EX Right Now
IS 1570 (Part 3) 11C10S25
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BS 970 (Part 1) 210M15
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Frequently Asked Questions
What is the difference between IS 1570 (Part 3) 11C10S25 and BS 970 (Part 1) 210M15?
IS 1570 (Part 3) 11C10S25 specifies Si which is not specified for BS 970 (Part 1) 210M15.
Can IS 1570 (Part 3) 11C10S25 be substituted with BS 970 (Part 1) 210M15?
IS 1570 (Part 3) 11C10S25 and BS 970 (Part 1) 210M15 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.