Strong Match — 87% match
based on chemical composition and mechanical property overlap.
BS 970 (Part 1) 220M07 (BS 970 (Part 1):1983) and IS 4432 11C10S25 (IS 4432:1988) are both steel grades.
Both fall under the Free Machining Steel category.
BS 970 (Part 1) 220M07 is typically used for wrought steel for mechanical and allied engineering purposes; free cutting grade in the as rolled condition (table 2)., while IS 4432 11C10S25 is commonly used for forgings and fabrication of case-hardened machine or automobile parts.
BS 970 (Part 1) 220M07 is defined under British Standards (BS), originating from United Kingdom, while IS 4432 11C10S25 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, BS 970 (Part 1) 220M07 vs IS 4432 11C10S25 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%.
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) 220M07
IS 4432 11C10S25
Core Tensile Strength
Not specified
600-850 MPa (16 mm) / 550-800 MPa (30 mm)
Core Yield Strength
Not specified
>=400 MPa (16 mm) / >=330 MPa (30 mm)
Core Elongation
Not specified
>=12% (16 mm) / >=14% (30 mm)
Core Reduction of Area
Not specified
>=35% (16 mm) / >=40% (30 mm)
Hardness, annealed (A)
Not specified
<=150 HB
Typical Applications
BS 970 (Part 1) 220M07
Wrought steel for mechanical and allied engineering purposes; free cutting grade in the as rolled condition (Table 2).
IS 4432 11C10S25
Forgings and fabrication of case-hardened machine or automobile parts
Key Differences
IS 4432 11C10S25 specifies Si which is not specified for BS 970 (Part 1) 220M07.
Can BS 970 (Part 1) 220M07 Be Substituted With IS 4432 11C10S25?
BS 970 (Part 1) 220M07 and IS 4432 11C10S25 overlap closely enough on chemistry and mechanical properties that IS 4432 11C10S25 is often considered as a substitute for BS 970 (Part 1) 220M07 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between BS 970 (Part 1) 220M07 and IS 4432 11C10S25?
IS 4432 11C10S25 specifies Si which is not specified for BS 970 (Part 1) 220M07.
Can BS 970 (Part 1) 220M07 be substituted with IS 4432 11C10S25?
BS 970 (Part 1) 220M07 and IS 4432 11C10S25 overlap closely enough on chemistry and mechanical properties that IS 4432 11C10S25 is often considered as a substitute for BS 970 (Part 1) 220M07 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.