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IS 3748 T55Si7 vs IS 1570 (Part 4) 36Si7

Related Material — 65% match based on chemical composition and mechanical property overlap.

IS 3748 T55Si7 (IS 3748:1990) and IS 1570 (Part 4) 36Si7 (IS 1570 (Part 4):1988) are both steel grades. IS 3748 T55Si7 is classified under Tool & Die Steels, while IS 1570 (Part 4) 36Si7 is classified under Alloy Steel — a different category, which is worth noting alongside the chemistry match below. IS 3748 T55Si7 is defined under Bureau of Indian Standards (IS), originating from India, while IS 1570 (Part 4) 36Si7 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 3748 T55Si7 vs IS 1570 (Part 4) 36Si7 is a 90.3% 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 3748 T55Si7:
IS 1570 (Part 6) 60T6 IS 1570 (Part 6) 70T6 EN ISO 4957 1.2316 DIN EN ISO 4957 1.2344 DIN EN ISO 4957 1.2379 EN ISO 683-17 100Cr6 IS 3748 103T3 IS 1570 (Part 6) 103T3 IS 3748 118T3 IS 1570 (Part 6) 118T3 IS 3748 133T3 IS 1570 (Part 6) 133T3
Match Breakdown
CHEMISTRY MATCH
90.3%
MECHANICAL MATCH
No shared data
OVERALL
65%
Specifications
Property IS 3748 T55Si7 IS 1570 (Part 4) 36Si7
Standard IS 3748:1990 IS 1570 (Part 4):1988
Category Tool & Die Steels Alloy Steel
C (%) 0.50-0.60 0.33-0.40
Si (%) 1.50-2.00 1.50-2.00
Mn (%) 0.80-1.00 0.80-1.00
S (%) <=0.035 Not specified
P (%) <=0.035 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 3748 T55Si7 IS 1570 (Part 4) 36Si7
Hardness <=230 HB Not specified
Condition Annealed (maximum Brinell hardness) Not specified
Typical Applications
IS 3748 T55Si7
Cold work tools and dies for blanking, trimming, chipping and shearing
IS 1570 (Part 4) 36Si7
Not documented
Key Differences
Can IS 3748 T55Si7 Be Substituted With IS 1570 (Part 4) 36Si7?
IS 3748 T55Si7 and IS 1570 (Part 4) 36Si7 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.
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IS 3748 T55Si7
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IS 1570 (Part 4) 36Si7
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Frequently Asked Questions
What is the difference between IS 3748 T55Si7 and IS 1570 (Part 4) 36Si7?
Different category: IS 3748 T55Si7 is Tool & Die Steels, IS 1570 (Part 4) 36Si7 is Alloy Steel. IS 3748 T55Si7 specifies S, P which are not specified for IS 1570 (Part 4) 36Si7.
Can IS 3748 T55Si7 be substituted with IS 1570 (Part 4) 36Si7?
IS 3748 T55Si7 and IS 1570 (Part 4) 36Si7 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.