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IS 1570 (Part 6) T55Cr3 vs IS 3748 T45Cr5Si3

Close Alternative — 76.2% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 6) T55Cr3 (IS 1570 (Part 6):1996) and IS 3748 T45Cr5Si3 (IS 3748:1990) are both steel grades. Both fall under the Tool & Die Steels category. IS 1570 (Part 6) T55Cr3 is defined under Bureau of Indian Standards (IS), originating from India, while IS 3748 T45Cr5Si3 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 1570 (Part 6) T55Cr3 vs IS 3748 T45Cr5Si3 is a 76.2% 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 76.2%.

Frequently Compared With IS 1570 (Part 6) T55Cr3:
EN ISO 683-17 100Cr6 GOST 5950 3H2W8F EN ISO 4957 1.2316 GOST 5950 4H5MFS IS 1570 (Part 6) 103T3 DIN EN ISO 4957 1.2379 IS 1570 (Part 6) 133T3 GB/T 1299 4Cr5MoSiV DIN EN ISO 4957 1.2344 GB/T 1299 3Cr2W8V GB/T 1299 4Cr5MoSiV1 AISI 52100
Match Breakdown
CHEMISTRY MATCH
76.2%
MECHANICAL MATCH
No shared data
OVERALL
76.2%
Specifications
Property IS 1570 (Part 6) T55Cr3 IS 3748 T45Cr5Si3
Standard IS 1570 (Part 6):1996 IS 3748:1990
Category Tool & Die Steels Tool & Die Steels
C (%) 0.50-0.60 0.40-0.50
Si (%) 0.10-0.35 0.80-1.10
Mn (%) 0.60-0.80 0.55-0.75
Cr (%) 0.60-0.80 1.20-1.60
P (%) <=0.035 <=0.035
S (%) <=0.035 <=0.035
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) T55Cr3 IS 3748 T45Cr5Si3
Hardness Not specified <=230 HB
Condition Not specified Annealed (maximum Brinell hardness)
Typical Applications
IS 1570 (Part 6) T55Cr3
Not documented
IS 3748 T45Cr5Si3
Cold work tools and dies for blanking, trimming, chipping and shearing
Can IS 1570 (Part 6) T55Cr3 Be Substituted With IS 3748 T45Cr5Si3?
IS 1570 (Part 6) T55Cr3 and IS 3748 T45Cr5Si3 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.
On M-EX Right Now
IS 1570 (Part 6) T55Cr3
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IS 3748 T45Cr5Si3
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Frequently Asked Questions
What is the difference between IS 1570 (Part 6) T55Cr3 and IS 3748 T45Cr5Si3?
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) T55Cr3 be substituted with IS 3748 T45Cr5Si3?
IS 1570 (Part 6) T55Cr3 and IS 3748 T45Cr5Si3 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.