JIS G4805 SUJ2 vs IS 3748 103T3

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

JIS G4805 SUJ2 (JIS G 4805:1999) and IS 3748 103T3 (IS 3748:1990) are both steel grades. Both fall under the Tool & Die Steels category. JIS G4805 SUJ2 is typically used for ball bearings, roller bearings, bearing races, precision rolls, while IS 3748 103T3 is commonly used for cold work tools and dies for blanking, trimming, chipping and shearing. JIS G4805 SUJ2 is defined under Japanese Industrial Standards (JIS), originating from Japan, while IS 3748 103T3 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, JIS G4805 SUJ2 vs IS 3748 103T3 is a 83.4% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With JIS G4805 SUJ2:
EN ISO 683-17 100Cr6 AISI 52100 GB/T 1299 4Cr5MoSiV1 GOST 5950 4H5MFS1 EN ISO 4957 1.2316 GB/T 1299 4Cr5MoSiV GOST 5950 3H2W8F DIN EN ISO 4957 1.2344 DIN EN ISO 4957 1.2379 GOST 5950 4H5MFS GB/T 1299 3Cr2W8V IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
83.4%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property JIS G4805 SUJ2 IS 3748 103T3
Standard JIS G 4805:1999 IS 3748:1990
Category Tool & Die Steels Tool & Die Steels
C (%) 0.95–1.10 0.95-1.10
Si (%) 0.15–0.35 0.10-0.30
Mn (%) ≤0.50 <=0.40
Cr (%) 1.30–1.60 Not specified
S (%) ≤0.025 <=0.035
P (%) ≤0.025 <=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 G4805 SUJ2 IS 3748 103T3
Tensile Strength ≥650 MPa (annealed) Not specified
Hardness HRC 60–64 (hardened) Not specified
Hardness HB 183–229 (annealed) Not specified
Hardness Not specified <=220 HB
Condition Not specified Annealed (maximum Brinell hardness)
Typical Applications
JIS G4805 SUJ2
Ball bearings, roller bearings, bearing races, precision rolls
IS 3748 103T3
Cold work tools and dies for blanking, trimming, chipping and shearing
Key Differences
Can JIS G4805 SUJ2 Be Substituted With IS 3748 103T3?
JIS G4805 SUJ2 and IS 3748 103T3 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 G4805 SUJ2
Round Bar → (6 listings)
Diameter: 60–80 mm (2.36–3.15 in)
Length: 5000–6900 mm (196.85–271.65 in)
IS 3748 103T3
No active listings currently.
On M-EX Right Now
JIS G4805 SUJ2
6 active listings and RFQs →
IS 3748 103T3
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Frequently Asked Questions
What is the difference between JIS G4805 SUJ2 and IS 3748 103T3?
JIS G4805 SUJ2 specifies Cr which is not specified for IS 3748 103T3.
Can JIS G4805 SUJ2 be substituted with IS 3748 103T3?
JIS G4805 SUJ2 and IS 3748 103T3 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.