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IS 3748 T55Si7 vs GB/T 1299 3Cr2W8V

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

IS 3748 T55Si7 (IS 3748:1990) and GB/T 1299 3Cr2W8V (GB/T 1299-2014) are both steel grades. Both fall under the Tool & Die Steels category. IS 3748 T55Si7 is typically used for cold work tools and dies for blanking, trimming, chipping and shearing, while GB/T 1299 3Cr2W8V is commonly used for used for hot forging dies, extrusion dies, die-casting molds, hot punches, and hot shear blades.. IS 3748 T55Si7 is defined under Bureau of Indian Standards (IS), originating from India, while GB/T 1299 3Cr2W8V is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, IS 3748 T55Si7 vs GB/T 1299 3Cr2W8V is a 58.7% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With IS 3748 T55Si7:
IS 1570 (Part 6) 60T6 EN ISO 4957 1.2316 DIN EN ISO 4957 1.2344 DIN EN ISO 4957 1.2379 IS 1570 (Part 6) 103T3 IS 1570 (Part 6) 133T3 IS 1570 (Part 6) 70T6 EN ISO 683-17 100Cr6 IS 3748 103T3 IS 3748 118T3 IS 1570 (Part 6) 118T3 IS 3748 133T3
Match Breakdown
CHEMISTRY MATCH
58.7%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property IS 3748 T55Si7 GB/T 1299 3Cr2W8V
Standard IS 3748:1990 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
C (%) 0.50-0.60 0.30-0.40
Si (%) 1.50-2.00 0.20-0.40
Mn (%) 0.80-1.00 0.20-0.50
S (%) <=0.035 0.030 max
P (%) <=0.035 0.030 max
Cr (%) Not specified 2.20-2.70
W (%) Not specified 7.50-9.00
V (%) Not specified 0.20-0.50
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 3748 T55Si7 GB/T 1299 3Cr2W8V
Hardness <=230 HB 48-54 HRC
Condition Annealed (maximum Brinell hardness) Not specified
Tensile Strength Not specified 1180-1380 MPa
Yield Strength Not specified 980-1180 MPa
Elongation Not specified 10-14%
Typical Applications
IS 3748 T55Si7
Cold work tools and dies for blanking, trimming, chipping and shearing
GB/T 1299 3Cr2W8V
Used for hot forging dies, extrusion dies, die-casting molds, hot punches, and hot shear blades.
Key Differences
Can IS 3748 T55Si7 Be Substituted With GB/T 1299 3Cr2W8V?
IS 3748 T55Si7 and GB/T 1299 3Cr2W8V 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 T55Si7
No active listings currently.
GB/T 1299 3Cr2W8V
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2800–2900 mm (110.24–114.17 in)
On M-EX Right Now
IS 3748 T55Si7
0 active listings and RFQs →
GB/T 1299 3Cr2W8V
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 3748 T55Si7 and GB/T 1299 3Cr2W8V?
GB/T 1299 3Cr2W8V specifies Cr, W, V which are not specified for IS 3748 T55Si7.
Can IS 3748 T55Si7 be substituted with GB/T 1299 3Cr2W8V?
IS 3748 T55Si7 and GB/T 1299 3Cr2W8V 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.