Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
EN 10087 11SMn30 (EN 10087:1998) and IS 4432 10C8S10 (IS 4432:1988) are both steel grades.
Both fall under the Free Machining Steel category.
EN 10087 11SMn30 is typically used for high volume screw machine parts, bolts, studs, while IS 4432 10C8S10 is commonly used for forgings and fabrication of case-hardened machine or automobile parts.
EN 10087 11SMn30 is defined under European Standard (EN), originating from Europe, while IS 4432 10C8S10 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, EN 10087 11SMn30 vs IS 4432 10C8S10 is a 76.6% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 35%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN 10087 11SMn30
IS 4432 10C8S10
Tensile Strength
380–570 MPa
Not specified
Elongation
≥7%
Not specified
Hardness
≤180 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
EN 10087 11SMn30
High volume screw machine parts, bolts, studs
IS 4432 10C8S10
Forgings and fabrication of case-hardened machine or automobile parts
Can EN 10087 11SMn30 Be Substituted With IS 4432 10C8S10?
EN 10087 11SMn30 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 EN 10087 11SMn30 and IS 4432 10C8S10?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN 10087 11SMn30 be substituted with IS 4432 10C8S10?
EN 10087 11SMn30 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.