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JIS G4801 SUP9 vs EN 10089 55Cr3

Related Material — 63.3% match based on chemical composition and mechanical property overlap.

JIS G4801 SUP9 (JIS G 4801:2005) and EN 10089 55Cr3 (EN 10089:2002) are both steel grades. Both fall under the Spring Steel category. JIS G4801 SUP9 is typically used for automotive leaf springs, suspension springs, while EN 10089 55Cr3 is commonly used for automotive leaf springs, heavy coil springs. JIS G4801 SUP9 is defined under Japanese Industrial Standards (JIS), originating from Japan, while EN 10089 55Cr3 is defined under European Standard (EN), originating from Europe.

As per chemical composition, JIS G4801 SUP9 vs EN 10089 55Cr3 is a 95% match. As per mechanical properties, the match is 0%. Combined, this makes them a related material overall at 63.3%.

Frequently Compared With JIS G4801 SUP9:
EN 10089 50CrV4 EN 10089 55Si7 EN 10083-3 51CrV4 GB/T 1222 55CrMnA IS 3431 50Cr4V2 IS 3195 113C6 IS 3195 50Cr4V2 EN 10083-1 51CrV4 EN 10083-1 51CrV4 IS 3195 52Cr4Mo2V IS 5517 55Cr3 IS 1570 (Part 4) 55Si7
Match Breakdown
CHEMISTRY MATCH
95%
MECHANICAL MATCH
0%
OVERALL
63.3%
Specifications
Property JIS G4801 SUP9 EN 10089 55Cr3
Standard JIS G 4801:2005 EN 10089:2002
Category Spring Steel Spring Steel
C (%) 0.52–0.60 0.52–0.59
Mn (%) 0.65–0.95 0.70–1.00
Cr (%) 0.65–0.95 0.60–0.90
Si (%) 0.15–0.35 0.15–0.35
P (%) ≤0.030 Not specified
S (%) ≤0.030 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property JIS G4801 SUP9 EN 10089 55Cr3
Tensile Strength 1180 MPa min (oil hardened) 1100–1350 MPa
Yield Strength ≥1030 MPa ≥1000 MPa
Elongation ≥7% ≥6%
Hardness 363–429 HB 321–388 HB
Typical Applications
JIS G4801 SUP9
Automotive leaf springs, suspension springs
EN 10089 55Cr3
Automotive leaf springs, heavy coil springs
Key Differences
Can JIS G4801 SUP9 Be Substituted With EN 10089 55Cr3?
JIS G4801 SUP9 and EN 10089 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.
Forms & Sizes Available on M-EX
JIS G4801 SUP9
Round Bar → (4 listings)
Diameter: 30–35 mm (1.18–1.38 in)
Length: 3900–6700 mm (153.54–263.78 in)
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)
On M-EX Right Now
JIS G4801 SUP9
4 active listings and RFQs →
EN 10089 55Cr3
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between JIS G4801 SUP9 and EN 10089 55Cr3?
JIS G4801 SUP9 specifies P, S which are not specified for EN 10089 55Cr3.
Can JIS G4801 SUP9 be substituted with EN 10089 55Cr3?
JIS G4801 SUP9 and EN 10089 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.