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IS 1570 (Part 6) T55Ni6Cr3Mo3 vs ASTM A681 L6

Close Alternative — 71.7% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 6) T55Ni6Cr3Mo3 (IS 1570 (Part 6):1996) and ASTM A681 L6 (ASTM A681:2008) are both steel grades. Both fall under the Tool & Die Steels category. IS 1570 (Part 6) T55Ni6Cr3Mo3 is defined under Bureau of Indian Standards (IS), originating from India, while ASTM A681 L6 is defined under ASTM International, originating from United States.

As per chemical composition, IS 1570 (Part 6) T55Ni6Cr3Mo3 vs ASTM A681 L6 is a 71.7% 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 71.7%.

Frequently Compared With IS 1570 (Part 6) T55Ni6Cr3Mo3:
IS 1570 (Part 6) 133T3 EN ISO 683-17 100Cr6 GB/T 1299 3Cr2W8V GOST 5950 4H5MFS1 EN ISO 4957 1.2316 DIN EN ISO 4957 1.2344 DIN EN ISO 4957 1.2379 IS 1570 (Part 6) 118T3 GOST 5950 3H2W8F GB/T 1299 4Cr5MoSiV1 GOST 5950 4H5MFS IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
71.7%
MECHANICAL MATCH
No shared data
OVERALL
71.7%
Specifications
Property IS 1570 (Part 6) T55Ni6Cr3Mo3 ASTM A681 L6
Standard IS 1570 (Part 6):1996 ASTM A681:2008
Category Tool & Die Steels Tool & Die Steels
C (%) 0.50-0.60 0.65-0.75
Si (%) 0.10-0.35 0.10-0.50
Mn (%) 0.50-0.80 0.25-0.80
Ni (%) 1.25-1.75 1.25-2.00
Cr (%) 0.50-0.80 0.60-1.20
Mo (%) 0.25-0.35 <=0.50
P (%) <=0.035 <=0.030
S (%) <=0.035 <=0.030
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) T55Ni6Cr3Mo3 ASTM A681 L6
Hardness Not specified <=235 HB
Condition Not specified Annealed (maximum Brinell hardness)
Typical Applications
IS 1570 (Part 6) T55Ni6Cr3Mo3
Not documented
ASTM A681 L6
Tools, dies and fixtures (clause 1.2)
Can IS 1570 (Part 6) T55Ni6Cr3Mo3 Be Substituted With ASTM A681 L6?
IS 1570 (Part 6) T55Ni6Cr3Mo3 and ASTM A681 L6 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.
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IS 1570 (Part 6) T55Ni6Cr3Mo3
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ASTM A681 L6
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Frequently Asked Questions
What is the difference between IS 1570 (Part 6) T55Ni6Cr3Mo3 and ASTM A681 L6?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 1570 (Part 6) T55Ni6Cr3Mo3 be substituted with ASTM A681 L6?
IS 1570 (Part 6) T55Ni6Cr3Mo3 and ASTM A681 L6 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.