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IS 3748 T140W15Cr2 vs GB/T 1299 4Cr5MoSiV

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

IS 3748 T140W15Cr2 (IS 3748:1990) and GB/T 1299 4Cr5MoSiV (GB/T 1299-2014) are both steel grades. Both fall under the Tool & Die Steels category. IS 3748 T140W15Cr2 is typically used for cold work tools and dies for blanking, trimming, chipping and shearing, while GB/T 1299 4Cr5MoSiV is commonly used for die casting dies, extrusion tooling. IS 3748 T140W15Cr2 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 3748 T140W15Cr2 vs GB/T 1299 4Cr5MoSiV is a 54.2% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With IS 3748 T140W15Cr2:
IS 3748 118T3 GOST 5950 3H2W8F EN ISO 4957 1.2316 EN ISO 683-17 100Cr6 IS 3748 103T3 IS 1570 (Part 6) 103T3 IS 1570 (Part 6) 118T3 IS 3748 133T3 IS 1570 (Part 6) 133T3 GB/T 1299 3Cr2W8V DIN EN ISO 4957 1.2379 DIN EN ISO 4957 1.2344
Match Breakdown
CHEMISTRY MATCH
54.2%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property IS 3748 T140W15Cr2 GB/T 1299 4Cr5MoSiV
Standard IS 3748:1990 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
C (%) 1.30-1.50 0.32–0.45
Si (%) 0.10-0.35 0.80–1.20
Mn (%) 0.25-0.50 0.20–0.50
Cr (%) 0.30-0.70 4.75–5.50
W (%) 3.50-4.20 Not specified
S (%) <=0.035 Not specified
P (%) <=0.035 Not specified
Mo (%) Not specified 1.10–1.60
V (%) Not specified 0.30–0.60
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 T140W15Cr2 GB/T 1299 4Cr5MoSiV
Hardness <=250 HB Not specified
Condition Annealed (maximum Brinell hardness) Not specified
Hardness HRC (hardened) Not specified 40–54
Hardness HB (annealed) Not specified ≤235
Typical Applications
IS 3748 T140W15Cr2
Cold work tools and dies for blanking, trimming, chipping and shearing
GB/T 1299 4Cr5MoSiV
Die casting dies, extrusion tooling
Key Differences
Can IS 3748 T140W15Cr2 Be Substituted With GB/T 1299 4Cr5MoSiV?
IS 3748 T140W15Cr2 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 3748 T140W15Cr2
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 3748 T140W15Cr2
0 active listings and RFQs →
GB/T 1299 4Cr5MoSiV
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 3748 T140W15Cr2 and GB/T 1299 4Cr5MoSiV?
IS 3748 T140W15Cr2 specifies W, S, P which are not specified for GB/T 1299 4Cr5MoSiV. GB/T 1299 4Cr5MoSiV specifies Mo, V which are not specified for IS 3748 T140W15Cr2.
Can IS 3748 T140W15Cr2 be substituted with GB/T 1299 4Cr5MoSiV?
IS 3748 T140W15Cr2 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.