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BS 970 (Part 1) 212A42 vs IS 5517 40C10S18

Strong Match — 90.5% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 212A42 (BS 970 (Part 1):1983) and IS 5517 40C10S18 (IS 5517:1993) are both steel grades. Both fall under the Free Machining Steel category. BS 970 (Part 1) 212A42 is defined under British Standards (BS), originating from United Kingdom, while IS 5517 40C10S18 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 (Part 1) 212A42 vs IS 5517 40C10S18 is a 90.5% 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 90.5%.

Frequently Compared With BS 970 (Part 1) 212A42:
SAE J403 1126 SAE J403 1117 SAE J403 1118 IS 1570 (Part 3) 10C8S10 IS 4432 10C8S10 SAE J403 1117 SAE J403 1117 SAE J403 1118 SAE J403 1118 SAE J403 1126 SAE J403 1126 SAE J403 1132
Match Breakdown
CHEMISTRY MATCH
90.5%
MECHANICAL MATCH
No shared data
OVERALL
90.5%
Specifications
Property BS 970 (Part 1) 212A42 IS 5517 40C10S18
Standard BS 970 (Part 1):1983 IS 5517:1993
Category Free Machining Steel Free Machining Steel
C (%) 0.40-0.45 0.35-0.45
Mn (%) 1.00-1.30 0.80-1.20
Si (%) <=0.25 <=0.25
P (%) <=0.060 <=0.060
S (%) 0.12-0.20 0.14-0.22
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property BS 970 (Part 1) 212A42 IS 5517 40C10S18
Tensile Strength Not specified 600-750 MPa
Yield Strength (0.2% proof) Not specified 380 MPa min
Elongation Not specified >=18%
Izod Impact Not specified 41 J min
Hardness (annealed) Not specified <=200 HB
Condition Not specified Hardened and tempered, ruling section up to 60 mm
Typical Applications
BS 970 (Part 1) 212A42
Through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of Table 6.
IS 5517 40C10S18
Not documented
Can BS 970 (Part 1) 212A42 Be Substituted With IS 5517 40C10S18?
BS 970 (Part 1) 212A42 and IS 5517 40C10S18 overlap closely enough on chemistry and mechanical properties that IS 5517 40C10S18 is often considered as a substitute for BS 970 (Part 1) 212A42 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
On M-EX Right Now
BS 970 (Part 1) 212A42
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IS 5517 40C10S18
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 212A42 and IS 5517 40C10S18?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 (Part 1) 212A42 be substituted with IS 5517 40C10S18?
BS 970 (Part 1) 212A42 and IS 5517 40C10S18 overlap closely enough on chemistry and mechanical properties that IS 5517 40C10S18 is often considered as a substitute for BS 970 (Part 1) 212A42 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.