Minimal Match — 49.3% match
based on chemical composition and mechanical property overlap.
BS 970 EN1A Leaded (BS 970:1955) and IS 4432 10C8S10 (IS 4432:1988) are both steel grades.
Both fall under the Free Machining Steel category.
BS 970 EN1A Leaded is typically used for high speed automatic machining, precision parts, while IS 4432 10C8S10 is commonly used for forgings and fabrication of case-hardened machine or automobile parts.
BS 970 EN1A Leaded is defined under British Standards (BS), originating from United Kingdom, while IS 4432 10C8S10 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, BS 970 EN1A Leaded vs IS 4432 10C8S10 is a 74% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 49.3%.
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 EN1A Leaded
IS 4432 10C8S10
Tensile Strength
380–490 MPa
Not specified
Elongation
≥20%
Not specified
Hardness
≤152 HB
Not specified
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 EN1A Leaded
High speed automatic machining, precision parts
IS 4432 10C8S10
Forgings and fabrication of case-hardened machine or automobile parts
Key Differences
BS 970 EN1A Leaded specifies Pb which is not specified for IS 4432 10C8S10.
IS 4432 10C8S10 specifies Si, P which are not specified for BS 970 EN1A Leaded.
Can BS 970 EN1A Leaded Be Substituted With IS 4432 10C8S10?
BS 970 EN1A Leaded and IS 4432 10C8S10 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
What is the difference between BS 970 EN1A Leaded and IS 4432 10C8S10?
BS 970 EN1A Leaded specifies Pb which is not specified for IS 4432 10C8S10. IS 4432 10C8S10 specifies Si, P which are not specified for BS 970 EN1A Leaded.
Can BS 970 EN1A Leaded be substituted with IS 4432 10C8S10?
BS 970 EN1A Leaded and IS 4432 10C8S10 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.