IS 1570 (Part 6) T55Ni7Cr4Mo5V1 vs IS 5517 40Ni6Cr4Mo3
Related Material — 65% match
based on chemical composition and mechanical property overlap.
IS 1570 (Part 6) T55Ni7Cr4Mo5V1 (IS 1570 (Part 6):1996) and IS 5517 40Ni6Cr4Mo3 (IS 5517:1993) are both steel grades.
IS 1570 (Part 6) T55Ni7Cr4Mo5V1 is classified under Tool & Die Steels, while IS 5517 40Ni6Cr4Mo3 is classified under Alloy Steel — a different category, which is worth noting alongside the chemistry match below.
IS 1570 (Part 6) T55Ni7Cr4Mo5V1 is defined under Bureau of Indian Standards (IS), originating from India, while IS 5517 40Ni6Cr4Mo3 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, IS 1570 (Part 6) T55Ni7Cr4Mo5V1 vs IS 5517 40Ni6Cr4Mo3 is a 65% 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 65%.
Frequently Compared With IS 1570 (Part 6) T55Ni7Cr4Mo5V1:
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 1570 (Part 6) T55Ni7Cr4Mo5V1
IS 5517 40Ni6Cr4Mo3
Tensile Strength
Not specified
800-950 MPa
Yield Strength (0.2% proof)
Not specified
600 MPa min
Elongation
Not specified
>=16%
Izod Impact
Not specified
55 J min
Hardness (annealed)
Not specified
<=241 HB
Condition
Not specified
Hardened and tempered, ruling section up to 150 mm
Key Differences
Different category: IS 1570 (Part 6) T55Ni7Cr4Mo5V1 is Tool & Die Steels, IS 5517 40Ni6Cr4Mo3 is Alloy Steel.
IS 1570 (Part 6) T55Ni7Cr4Mo5V1 specifies V which is not specified for IS 5517 40Ni6Cr4Mo3.
Can IS 1570 (Part 6) T55Ni7Cr4Mo5V1 Be Substituted With IS 5517 40Ni6Cr4Mo3?
IS 1570 (Part 6) T55Ni7Cr4Mo5V1 and IS 5517 40Ni6Cr4Mo3 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 IS 1570 (Part 6) T55Ni7Cr4Mo5V1 and IS 5517 40Ni6Cr4Mo3?
Different category: IS 1570 (Part 6) T55Ni7Cr4Mo5V1 is Tool & Die Steels, IS 5517 40Ni6Cr4Mo3 is Alloy Steel. IS 1570 (Part 6) T55Ni7Cr4Mo5V1 specifies V which is not specified for IS 5517 40Ni6Cr4Mo3.
Can IS 1570 (Part 6) T55Ni7Cr4Mo5V1 be substituted with IS 5517 40Ni6Cr4Mo3?
IS 1570 (Part 6) T55Ni7Cr4Mo5V1 and IS 5517 40Ni6Cr4Mo3 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.