Close Alternative — 71.3% match
based on chemical composition and mechanical property overlap.
ASTM A681 H25 (ASTM A681:2008) and IS 1570 (Part 6) XT33W9Cr3V4 (IS 1570 (Part 6):1996) are both steel grades.
Both fall under the Tool & Die Steels category.
ASTM A681 H25 is defined under ASTM International, originating from United States, while IS 1570 (Part 6) XT33W9Cr3V4 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, ASTM A681 H25 vs IS 1570 (Part 6) XT33W9Cr3V4 is a 71.3% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a close alternative overall at 71.3%.
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 H25
IS 1570 (Part 6) XT33W9Cr3V4
Hardness
<=235 HB
Not specified
Condition
Annealed (maximum Brinell hardness)
Not specified
Typical Applications
ASTM A681 H25
Tools, dies and fixtures (clause 1.2)
IS 1570 (Part 6) XT33W9Cr3V4
Not documented
Can ASTM A681 H25 Be Substituted With IS 1570 (Part 6) XT33W9Cr3V4?
ASTM A681 H25 and IS 1570 (Part 6) XT33W9Cr3V4 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
What is the difference between ASTM A681 H25 and IS 1570 (Part 6) XT33W9Cr3V4?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A681 H25 be substituted with IS 1570 (Part 6) XT33W9Cr3V4?
ASTM A681 H25 and IS 1570 (Part 6) XT33W9Cr3V4 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.