Minimal Match — 47.9% match
based on chemical composition and mechanical property overlap.
EN 10083-3 51CrV4 (EN 10083-3:2006) and IS 5517 55Cr3 (IS 5517:1993) are both steel grades.
Both fall under the Spring Steel category.
EN 10083-3 51CrV4 is defined under European Standard (EN), originating from Europe, while IS 5517 55Cr3 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, EN 10083-3 51CrV4 vs IS 5517 55Cr3 is a 71.8% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 47.9%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN 10083-3 51CrV4
IS 5517 55Cr3
Condition
Quenched and tempered (+QT), ruling section d <= 16 mm
Hardened and tempered, ruling section up to 63 mm
Elongation
9% min
>=12%
Hardness
Soft annealed (+A): 248 HBW max
Not specified
Tensile Strength
1100 to 1300 MPa
900-1050 MPa
Yield Strength
900 MPa min
Not specified
Yield Strength (0.2% proof)
Not specified
660 MPa min
Izod Impact
Not specified
35 J min
Hardness (annealed)
Not specified
<=220 HB
Typical Applications
EN 10083-3 51CrV4
Valve springs, clutch springs, high duty coil springs
IS 5517 55Cr3
Not documented
Key Differences
EN 10083-3 51CrV4 specifies V which is not specified for IS 5517 55Cr3.
Can EN 10083-3 51CrV4 Be Substituted With IS 5517 55Cr3?
EN 10083-3 51CrV4 and IS 5517 55Cr3 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 10083-3 51CrV4 and IS 5517 55Cr3?
EN 10083-3 51CrV4 specifies V which is not specified for IS 5517 55Cr3.
Can EN 10083-3 51CrV4 be substituted with IS 5517 55Cr3?
EN 10083-3 51CrV4 and IS 5517 55Cr3 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.