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GB/T 1299 4Cr5MoSiV1 vs IS 3748 XT35Cr5Mo1V3

Strong Match — 90.7% match based on chemical composition and mechanical property overlap.

GB/T 1299 4Cr5MoSiV1 (GB/T 1299-2014) and IS 3748 XT35Cr5Mo1V3 (IS 3748:1990) are both steel grades. Both fall under the Tool & Die Steels category. GB/T 1299 4Cr5MoSiV1 is typically used for die casting dies, forging dies, extrusion tools, while IS 3748 XT35Cr5Mo1V3 is commonly used for hot work tools and dies, such as die-casting dies and hot headers. GB/T 1299 4Cr5MoSiV1 is defined under Guobiao Standards (GB/T), originating from China, while IS 3748 XT35Cr5Mo1V3 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, GB/T 1299 4Cr5MoSiV1 vs IS 3748 XT35Cr5Mo1V3 is a 86.1% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 90.7%.

Frequently Compared With GB/T 1299 4Cr5MoSiV1:
GB/T 1299 4Cr5MoSiV GOST 5950 4H5MFS EN ISO 683-17 100Cr6 DIN EN ISO 4957 1.2344 GOST 5950 4H5MFS1 AISI 52100 IS 1570 (Part 6) 70T3 IS 1570 (Part 6) 103T3 IS 3748 103T3 EN ISO 4957 1.2316 IS 1570 (Part 6) 133T3 IS 1570 (Part 6) 50T8
Match Breakdown
CHEMISTRY MATCH
86.1%
MECHANICAL MATCH
100%
OVERALL
90.7%
Specifications
Property GB/T 1299 4Cr5MoSiV1 IS 3748 XT35Cr5Mo1V3
Standard GB/T 1299-2014 IS 3748:1990
Category Tool & Die Steels Tool & Die Steels
C (%) 0.32–0.45 0.30-0.40
Si (%) 0.80–1.20 0.80-1.20
Mn (%) 0.20–0.50 0.25-0.50
Cr (%) 4.75–5.50 4.75-5.50
Mo (%) 1.20–1.75 1.20-1.60
V (%) 0.80–1.20 0.20-0.40
S (%) Not specified <=0.035
P (%) Not specified <=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 GB/T 1299 4Cr5MoSiV1 IS 3748 XT35Cr5Mo1V3
Hardness HRC (hardened) 42–54 Not specified
Hardness HB (annealed) ≤235 Not specified
Hardness Not specified <=235 HB
Condition Not specified Annealed (maximum Brinell hardness)
Typical Applications
GB/T 1299 4Cr5MoSiV1
Die casting dies, forging dies, extrusion tools
IS 3748 XT35Cr5Mo1V3
Hot work tools and dies, such as die-casting dies and hot headers
Key Differences
Can GB/T 1299 4Cr5MoSiV1 Be Substituted With IS 3748 XT35Cr5Mo1V3?
GB/T 1299 4Cr5MoSiV1 and IS 3748 XT35Cr5Mo1V3 overlap closely enough on chemistry and mechanical properties that IS 3748 XT35Cr5Mo1V3 is often considered as a substitute for GB/T 1299 4Cr5MoSiV1 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
GB/T 1299 4Cr5MoSiV1
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2700–4100 mm (106.3–161.42 in)
IS 3748 XT35Cr5Mo1V3
No active listings currently.
On M-EX Right Now
GB/T 1299 4Cr5MoSiV1
2 active listings and RFQs →
IS 3748 XT35Cr5Mo1V3
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between GB/T 1299 4Cr5MoSiV1 and IS 3748 XT35Cr5Mo1V3?
IS 3748 XT35Cr5Mo1V3 specifies S, P which are not specified for GB/T 1299 4Cr5MoSiV1.
Can GB/T 1299 4Cr5MoSiV1 be substituted with IS 3748 XT35Cr5Mo1V3?
GB/T 1299 4Cr5MoSiV1 and IS 3748 XT35Cr5Mo1V3 overlap closely enough on chemistry and mechanical properties that IS 3748 XT35Cr5Mo1V3 is often considered as a substitute for GB/T 1299 4Cr5MoSiV1 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.