Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
JIS G4404 SKD61 (JIS G4404:2006) and IS 3748 103T3 (IS 3748:1990) are both steel grades.
Both fall under the Tool & Die Steels category.
JIS G4404 SKD61 is typically used for die casting dies, extrusion tooling, forging tools, while IS 3748 103T3 is commonly used for cold work tools and dies for blanking, trimming, chipping and shearing.
JIS G4404 SKD61 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 G4404 SKD61 vs IS 3748 103T3 is a 59.5% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 35%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
JIS G4404 SKD61
IS 3748 103T3
Hardness HRC (hardened)
44-54
Not specified
Hardness HB (annealed)
<=229
Not specified
Hardness
Not specified
<=220 HB
Condition
Not specified
Annealed (maximum Brinell hardness)
Typical Applications
JIS G4404 SKD61
Die casting dies, extrusion tooling, forging tools
IS 3748 103T3
Cold work tools and dies for blanking, trimming, chipping and shearing
Key Differences
JIS G4404 SKD61 specifies Cr, Mo, V which are not specified for IS 3748 103T3.
IS 3748 103T3 specifies S, P which are not specified for JIS G4404 SKD61.
Can JIS G4404 SKD61 Be Substituted With IS 3748 103T3?
JIS G4404 SKD61 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.
What is the difference between JIS G4404 SKD61 and IS 3748 103T3?
JIS G4404 SKD61 specifies Cr, Mo, V which are not specified for IS 3748 103T3. IS 3748 103T3 specifies S, P which are not specified for JIS G4404 SKD61.
Can JIS G4404 SKD61 be substituted with IS 3748 103T3?
JIS G4404 SKD61 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.