Related Material — 62.5% match
based on chemical composition and mechanical property overlap.
JIS G4404 SKS31 (JIS G4404:2006) and IS 1570 (Part 6) XT33W9Cr3V4 (IS 1570 (Part 6):1996) are both steel grades.
Both fall under the Tool & Die Steels category.
JIS G4404 SKS31 is defined under Japanese Industrial Standards (JIS), originating from Japan, while IS 1570 (Part 6) XT33W9Cr3V4 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, JIS G4404 SKS31 vs IS 1570 (Part 6) XT33W9Cr3V4 is a 62.5% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a related material overall at 62.5%.
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 SKS31
IS 1570 (Part 6) XT33W9Cr3V4
Tensile Strength
900-1150 MPa
Not specified
Yield Strength
750 MPa min
Not specified
Elongation
10% min
Not specified
Hardness
58-62 HRC
Not specified
Typical Applications
JIS G4404 SKS31
Cold working molds, press dies, jigs, gauges, long taps, reamers, measuring tools requiring minimal quenching distortion.
IS 1570 (Part 6) XT33W9Cr3V4
Not documented
Key Differences
IS 1570 (Part 6) XT33W9Cr3V4 specifies V which is not specified for JIS G4404 SKS31.
Can JIS G4404 SKS31 Be Substituted With IS 1570 (Part 6) XT33W9Cr3V4?
JIS G4404 SKS31 and IS 1570 (Part 6) XT33W9Cr3V4 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 SKS31 and IS 1570 (Part 6) XT33W9Cr3V4?
IS 1570 (Part 6) XT33W9Cr3V4 specifies V which is not specified for JIS G4404 SKS31.
Can JIS G4404 SKS31 be substituted with IS 1570 (Part 6) XT33W9Cr3V4?
JIS G4404 SKS31 and IS 1570 (Part 6) XT33W9Cr3V4 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.