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IS 4432 11C10S25 vs BS 970 (Part 1) 220M07

Strong Match — 87% match based on chemical composition and mechanical property overlap.

IS 4432 11C10S25 (IS 4432:1988) and BS 970 (Part 1) 220M07 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Free Machining Steel category. IS 4432 11C10S25 is typically used for forgings and fabrication of case-hardened machine or automobile parts, while BS 970 (Part 1) 220M07 is commonly used for wrought steel for mechanical and allied engineering purposes; free cutting grade in the as rolled condition (table 2).. IS 4432 11C10S25 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 220M07 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 4432 11C10S25 vs BS 970 (Part 1) 220M07 is a 87% 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 87%.

Frequently Compared With IS 4432 11C10S25:
IS 4432 10C8S10 IS 1570 (Part 3) 10C8S10 SAE J403 1117 SAE J403 1117 SAE J403 1126 SAE J403 1132 SAE J403 1117 SAE J403 1132 SAE J403 1118 SAE J403 1118 SAE J403 1126 SAE J403 1118
Match Breakdown
CHEMISTRY MATCH
87%
MECHANICAL MATCH
No shared data
OVERALL
87%
Specifications
Property IS 4432 11C10S25 BS 970 (Part 1) 220M07
Standard IS 4432:1988 BS 970 (Part 1):1983
Category Free Machining Steel Free Machining Steel
C (%) 0.08-0.18 <=0.15
Si (%) 0.10-0.35 Not specified
Mn (%) 0.80-1.20 0.90-1.30
S (%) 0.20-0.30 0.20-0.30
P (%) <=0.045 <=0.070
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 4432 11C10S25 BS 970 (Part 1) 220M07
Core Tensile Strength 600-850 MPa (16 mm) / 550-800 MPa (30 mm) Not specified
Core Yield Strength >=400 MPa (16 mm) / >=330 MPa (30 mm) Not specified
Core Elongation >=12% (16 mm) / >=14% (30 mm) Not specified
Core Reduction of Area >=35% (16 mm) / >=40% (30 mm) Not specified
Hardness, annealed (A) <=150 HB Not specified
Typical Applications
IS 4432 11C10S25
Forgings and fabrication of case-hardened machine or automobile parts
BS 970 (Part 1) 220M07
Wrought steel for mechanical and allied engineering purposes; free cutting grade in the as rolled condition (Table 2).
Key Differences
Can IS 4432 11C10S25 Be Substituted With BS 970 (Part 1) 220M07?
IS 4432 11C10S25 and BS 970 (Part 1) 220M07 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 220M07 is often considered as a substitute for IS 4432 11C10S25 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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IS 4432 11C10S25
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BS 970 (Part 1) 220M07
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Frequently Asked Questions
What is the difference between IS 4432 11C10S25 and BS 970 (Part 1) 220M07?
IS 4432 11C10S25 specifies Si which is not specified for BS 970 (Part 1) 220M07.
Can IS 4432 11C10S25 be substituted with BS 970 (Part 1) 220M07?
IS 4432 11C10S25 and BS 970 (Part 1) 220M07 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 220M07 is often considered as a substitute for IS 4432 11C10S25 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.