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IS 1570 (Part 6) XT78W18Cr4V1 vs GB/T 1299 4Cr5MoSiV

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

IS 1570 (Part 6) XT78W18Cr4V1 (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) XT78W18Cr4V1 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) XT78W18Cr4V1 vs GB/T 1299 4Cr5MoSiV is a 43.6% 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) XT78W18Cr4V1:
GB/T 1299 3Cr2W8V DIN EN ISO 4957 1.2379 EN ISO 683-17 100Cr6 IS 1570 (Part 6) 103T3 IS 1570 (Part 6) 118T3 GOST 5950 4H5MFS IS 1570 (Part 6) 133T3 GOST 5950 3H2W8F GOST 5950 4H5MFS1 EN ISO 4957 1.2316 DIN EN ISO 4957 1.2344 GB/T 1299 4Cr5MoSiV1
Match Breakdown
CHEMISTRY MATCH
43.6%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property IS 1570 (Part 6) XT78W18Cr4V1 GB/T 1299 4Cr5MoSiV
Standard IS 1570 (Part 6):1996 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
Cr (%) 3.50-4.50 4.75–5.50
V (%) 0.90-1.20 0.30–0.60
W (%) 17.20-18.70 Not specified
Co (%) <=1.00 Not specified
Mo (%) <=0.70 1.10–1.60
Si (%) <=0.50 0.80–1.20
Mn (%) <=0.40 0.20–0.50
P (%) <=0.030 Not specified
S (%) <=0.030 Not specified
C (%) 0.73-0.83 0.32–0.45
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) XT78W18Cr4V1 GB/T 1299 4Cr5MoSiV
Hardness HRC (hardened) Not specified 40–54
Hardness HB (annealed) Not specified ≤235
Typical Applications
IS 1570 (Part 6) XT78W18Cr4V1
Not documented
GB/T 1299 4Cr5MoSiV
Die casting dies, extrusion tooling
Key Differences
Can IS 1570 (Part 6) XT78W18Cr4V1 Be Substituted With GB/T 1299 4Cr5MoSiV?
IS 1570 (Part 6) XT78W18Cr4V1 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) XT78W18Cr4V1
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) XT78W18Cr4V1
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) XT78W18Cr4V1 and GB/T 1299 4Cr5MoSiV?
IS 1570 (Part 6) XT78W18Cr4V1 specifies W, Co, P, S which are not specified for GB/T 1299 4Cr5MoSiV.
Can IS 1570 (Part 6) XT78W18Cr4V1 be substituted with GB/T 1299 4Cr5MoSiV?
IS 1570 (Part 6) XT78W18Cr4V1 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.