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EN 10089 55Cr3 vs EN 10089 55Si7

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

EN 10089 55Cr3 (EN 10089:2002) and EN 10089 55Si7 (EN 10089:2002) are both steel grades. Both fall under the Spring Steel category. EN 10089 55Cr3 is typically used for automotive leaf springs, heavy coil springs, while EN 10089 55Si7 is commonly used for leaf springs, coil springs, torsion bars. EN 10089 55Cr3 is defined under European Standard (EN), originating from Europe, while EN 10089 55Si7 is defined under European Standard (EN), originating from Europe.

As per chemical composition, EN 10089 55Cr3 vs EN 10089 55Si7 is a 82.3% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With EN 10089 55Cr3:
EN 10089 50CrV4 GB/T 1222 55CrMnA EN 10083-3 51CrV4 IS 3195 52Cr4Mo2V IS 1570 (Part 4) 55Si7 IS 3195 60Si7 IS 5517 55Cr3 IS 3195 60Cr4V2 IS 4367 55Si7 IS 3195 98C6 IS 1570 (Part 4) 65Si7 BS 970 EN42D
Match Breakdown
CHEMISTRY MATCH
82.3%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property EN 10089 55Cr3 EN 10089 55Si7
Standard EN 10089:2002 EN 10089:2002
Category Spring Steel Spring Steel
C (%) 0.52–0.59 0.51–0.59
Si (%) 0.15–0.35 1.50–2.00
Mn (%) 0.70–1.00 0.70–1.00
Cr (%) 0.60–0.90 Not specified
S (%) Not specified ≤0.040
P (%) Not specified ≤0.040
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 EN 10089 55Si7
Tensile Strength 1100–1350 MPa 1000–1200 MPa
Yield Strength ≥1000 MPa ≥900 MPa
Elongation ≥6% ≥7%
Hardness 321–388 HB 285–363 HB
Typical Applications
EN 10089 55Cr3
Automotive leaf springs, heavy coil springs
EN 10089 55Si7
Leaf springs, coil springs, torsion bars
Key Differences
Can EN 10089 55Cr3 Be Substituted With EN 10089 55Si7?
EN 10089 55Cr3 and EN 10089 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.
Forms & Sizes Available on M-EX
EN 10089 55Cr3
Round Bar → (3 listings)
Diameter: 30–30 mm (1.18–1.18 in)
Length: 5100–6600 mm (200.79–259.84 in)
EN 10089 55Si7
Round Bar → (3 listings)
Diameter: 30–30 mm (1.18–1.18 in)
Length: 4200–7000 mm (165.35–275.59 in)
On M-EX Right Now
EN 10089 55Cr3
3 active listings and RFQs →
EN 10089 55Si7
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between EN 10089 55Cr3 and EN 10089 55Si7?
EN 10089 55Cr3 specifies Cr which is not specified for EN 10089 55Si7. EN 10089 55Si7 specifies S, P which are not specified for EN 10089 55Cr3.
Can EN 10089 55Cr3 be substituted with EN 10089 55Si7?
EN 10089 55Cr3 and EN 10089 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.