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ASTM A681 H12 vs IS 3748 XT35Cr5MoW1V3

Strong Match — 92.3% match based on chemical composition and mechanical property overlap.

ASTM A681 H12 (ASTM A681:2008) and IS 3748 XT35Cr5MoW1V3 (IS 3748:1990) are both steel grades. Both fall under the Tool & Die Steels category. ASTM A681 H12 is typically used for tools, dies and fixtures (clause 1.2), while IS 3748 XT35Cr5MoW1V3 is commonly used for hot work tools and dies, such as die-casting dies and hot headers. ASTM A681 H12 is defined under ASTM International, originating from United States, while IS 3748 XT35Cr5MoW1V3 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, ASTM A681 H12 vs IS 3748 XT35Cr5MoW1V3 is a 88.4% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 92.3%.

Frequently Compared With ASTM A681 H12:
EN ISO 4957 1.2316 DIN EN ISO 4957 1.2344 DIN EN ISO 4957 1.2379 EN ISO 683-17 100Cr6 IS 1570 (Part 6) 103T3 IS 1570 (Part 6) 118T3 IS 1570 (Part 6) 133T3 GB/T 1299 3Cr2W8V GOST 5950 3H2W8F GB/T 1299 4Cr5MoSiV GB/T 1299 4Cr5MoSiV1 GOST 5950 4H5MFS
Match Breakdown
CHEMISTRY MATCH
88.4%
MECHANICAL MATCH
100%
OVERALL
92.3%
Specifications
Property ASTM A681 H12 IS 3748 XT35Cr5MoW1V3
Standard ASTM A681:2008 IS 3748:1990
Category Tool & Die Steels Tool & Die Steels
C (%) 0.30-0.40 0.30-0.40
Mn (%) 0.20-0.60 0.25-0.50
P (%) <=0.030 <=0.035
S (%) <=0.030 <=0.035
Si (%) 0.80-1.25 0.80-1.20
Cr (%) 4.75-5.50 4.75-5.50
V (%) 0.20-0.50 0.20-0.40
W (%) 1.00-1.70 1.20-1.60
Mo (%) 1.25-1.75 1.20-1.60
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 H12 IS 3748 XT35Cr5MoW1V3
Hardness <=235 HB <=235 HB
Condition Annealed (maximum Brinell hardness) Annealed (maximum Brinell hardness)
Typical Applications
ASTM A681 H12
Tools, dies and fixtures (clause 1.2)
IS 3748 XT35Cr5MoW1V3
Hot work tools and dies, such as die-casting dies and hot headers
Can ASTM A681 H12 Be Substituted With IS 3748 XT35Cr5MoW1V3?
ASTM A681 H12 and IS 3748 XT35Cr5MoW1V3 overlap closely enough on chemistry and mechanical properties that IS 3748 XT35Cr5MoW1V3 is often considered as a substitute for ASTM A681 H12 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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ASTM A681 H12
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IS 3748 XT35Cr5MoW1V3
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Frequently Asked Questions
What is the difference between ASTM A681 H12 and IS 3748 XT35Cr5MoW1V3?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A681 H12 be substituted with IS 3748 XT35Cr5MoW1V3?
ASTM A681 H12 and IS 3748 XT35Cr5MoW1V3 overlap closely enough on chemistry and mechanical properties that IS 3748 XT35Cr5MoW1V3 is often considered as a substitute for ASTM A681 H12 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.