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JIS G4801 SUP9 vs IS 5517 55Cr3

Related Material — 58% match based on chemical composition and mechanical property overlap.

JIS G4801 SUP9 (JIS G 4801:2005) and IS 5517 55Cr3 (IS 5517:1993) are both steel grades. Both fall under the Spring Steel category. JIS G4801 SUP9 is defined under Japanese Industrial Standards (JIS), originating from Japan, while IS 5517 55Cr3 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, JIS G4801 SUP9 vs IS 5517 55Cr3 is a 87.1% match. As per mechanical properties, the match is 0%. Combined, this makes them a related material overall at 58%.

Frequently Compared With JIS G4801 SUP9:
EN 10089 55Cr3 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 IS 3195 52Cr4Mo2V EN 10083-1 51CrV4 IS 1570 (Part 4) 55Si7
Match Breakdown
CHEMISTRY MATCH
87.1%
MECHANICAL MATCH
0%
OVERALL
58%
Specifications
Property JIS G4801 SUP9 IS 5517 55Cr3
Standard JIS G 4801:2005 IS 5517:1993
Category Spring Steel Spring Steel
C (%) 0.52–0.60 0.50-0.60
Mn (%) 0.65–0.95 0.60-0.80
Cr (%) 0.65–0.95 0.60-0.80
Si (%) 0.15–0.35 0.10-0.35
P (%) ≤0.030 <=0.035
S (%) ≤0.030 <=0.035
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 IS 5517 55Cr3
Tensile Strength 1180 MPa min (oil hardened) 900-1050 MPa
Yield Strength ≥1030 MPa Not specified
Elongation ≥7% >=12%
Hardness 363–429 HB 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
Condition Not specified Hardened and tempered, ruling section up to 63 mm
Typical Applications
JIS G4801 SUP9
Automotive leaf springs, suspension springs
IS 5517 55Cr3
Not documented
Can JIS G4801 SUP9 Be Substituted With IS 5517 55Cr3?
JIS G4801 SUP9 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.
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)
IS 5517 55Cr3
No active listings currently.
On M-EX Right Now
JIS G4801 SUP9
4 active listings and RFQs →
IS 5517 55Cr3
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between JIS G4801 SUP9 and IS 5517 55Cr3?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can JIS G4801 SUP9 be substituted with IS 5517 55Cr3?
JIS G4801 SUP9 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.