Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
ASTM A681 H13 (ASTM A681:2008) and IS 3748 103T3 (IS 3748:1990) are both steel grades.
Both fall under the Tool & Die Steels category.
ASTM A681 H13 is typically used for die casting dies, extrusion dies, forging dies, hot stamping, while IS 3748 103T3 is commonly used for cold work tools and dies for blanking, trimming, chipping and shearing.
ASTM A681 H13 is defined under ASTM International, originating from United States, while IS 3748 103T3 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, ASTM A681 H13 vs IS 3748 103T3 is a 60.5% 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
ASTM A681 H13
IS 3748 103T3
Hardness
<=235 HB
<=220 HB
Condition
Annealed (maximum Brinell hardness)
Annealed (maximum Brinell hardness)
Typical Applications
ASTM A681 H13
Die casting dies, extrusion dies, forging dies, hot stamping
IS 3748 103T3
Cold work tools and dies for blanking, trimming, chipping and shearing
Key Differences
ASTM A681 H13 specifies Cr, V, Mo which are not specified for IS 3748 103T3.
Can ASTM A681 H13 Be Substituted With IS 3748 103T3?
ASTM A681 H13 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 ASTM A681 H13 and IS 3748 103T3?
ASTM A681 H13 specifies Cr, V, Mo which are not specified for IS 3748 103T3.
Can ASTM A681 H13 be substituted with IS 3748 103T3?
ASTM A681 H13 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.