Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
EN 10089 55Cr3 (EN 10089:2002) and IS 4367 55Si7 (IS 4367:1991) are both steel grades.
Both fall under the Spring Steel category.
EN 10089 55Cr3 is defined under European Standard (EN), originating from Europe, while IS 4367 55Si7 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, EN 10089 55Cr3 vs IS 4367 55Si7 is a 77.3% 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 10089 55Cr3
IS 4367 55Si7
Tensile Strength
1100–1350 MPa
1300-1500 MPa
Yield Strength
≥1000 MPa
Not specified
Elongation
≥6%
Not specified
Hardness
321–388 HB
380-440 HB
Hardness (soft annealed)
Not specified
<=245 HB
Condition
Not specified
Hardened and tempered, ruling section up to 100 mm
Typical Applications
EN 10089 55Cr3
Automotive leaf springs, heavy coil springs
IS 4367 55Si7
Not documented
Key Differences
EN 10089 55Cr3 specifies Cr which is not specified for IS 4367 55Si7.
IS 4367 55Si7 specifies S, P which are not specified for EN 10089 55Cr3.
Can EN 10089 55Cr3 Be Substituted With IS 4367 55Si7?
EN 10089 55Cr3 and IS 4367 55Si7 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 10089 55Cr3 and IS 4367 55Si7?
EN 10089 55Cr3 specifies Cr which is not specified for IS 4367 55Si7. IS 4367 55Si7 specifies S, P which are not specified for EN 10089 55Cr3.
Can EN 10089 55Cr3 be substituted with IS 4367 55Si7?
EN 10089 55Cr3 and IS 4367 55Si7 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.