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IS 1570 (Part 6) T55Si7Mo3 vs GB/T 1299 4Cr5MoSiV

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 6) T55Si7Mo3 (IS 1570 (Part 6):1996) and GB/T 1299 4Cr5MoSiV (GB/T 1299-2014) are both steel grades. Both fall under the Tool & Die Steels category. IS 1570 (Part 6) T55Si7Mo3 is defined under Bureau of Indian Standards (IS), originating from India, while GB/T 1299 4Cr5MoSiV is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, IS 1570 (Part 6) T55Si7Mo3 vs GB/T 1299 4Cr5MoSiV is a 57.8% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With IS 1570 (Part 6) T55Si7Mo3:
GOST 5950 4H5MFS1 EN ISO 683-17 100Cr6 EN ISO 4957 1.2316 IS 1570 (Part 6) 133T3 GB/T 1299 3Cr2W8V GOST 5950 4H5MFS DIN EN ISO 4957 1.2344 GOST 5950 3H2W8F IS 1570 (Part 6) 118T3 DIN EN ISO 4957 1.2379 IS 1570 (Part 6) 103T3 GB/T 1299 4Cr5MoSiV1
Match Breakdown
CHEMISTRY MATCH
57.8%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property IS 1570 (Part 6) T55Si7Mo3 GB/T 1299 4Cr5MoSiV
Standard IS 1570 (Part 6):1996 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
C (%) 0.50-0.60 0.32–0.45
Si (%) 1.50-2.00 0.80–1.20
Mn (%) 0.80-1.00 0.20–0.50
Mo (%) 0.25-0.40 1.10–1.60
V (%) 0.12-0.20 (optional) 0.30–0.60
P (%) <=0.035 Not specified
S (%) <=0.035 Not specified
Cr (%) Not specified 4.75–5.50
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) T55Si7Mo3 GB/T 1299 4Cr5MoSiV
Hardness HRC (hardened) Not specified 40–54
Hardness HB (annealed) Not specified ≤235
Typical Applications
IS 1570 (Part 6) T55Si7Mo3
Not documented
GB/T 1299 4Cr5MoSiV
Die casting dies, extrusion tooling
Key Differences
Can IS 1570 (Part 6) T55Si7Mo3 Be Substituted With GB/T 1299 4Cr5MoSiV?
IS 1570 (Part 6) T55Si7Mo3 and GB/T 1299 4Cr5MoSiV 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.
Forms & Sizes Available on M-EX
IS 1570 (Part 6) T55Si7Mo3
No active listings currently.
GB/T 1299 4Cr5MoSiV
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2500–2700 mm (98.43–106.3 in)
On M-EX Right Now
IS 1570 (Part 6) T55Si7Mo3
0 active listings and RFQs →
GB/T 1299 4Cr5MoSiV
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 6) T55Si7Mo3 and GB/T 1299 4Cr5MoSiV?
IS 1570 (Part 6) T55Si7Mo3 specifies P, S which are not specified for GB/T 1299 4Cr5MoSiV. GB/T 1299 4Cr5MoSiV specifies Cr which is not specified for IS 1570 (Part 6) T55Si7Mo3.
Can IS 1570 (Part 6) T55Si7Mo3 be substituted with GB/T 1299 4Cr5MoSiV?
IS 1570 (Part 6) T55Si7Mo3 and GB/T 1299 4Cr5MoSiV 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.