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IS 1570 (Part 6) XT127W10Co10Cr4Mo4V3 vs GOST 5950 4H5MFS1

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

IS 1570 (Part 6) XT127W10Co10Cr4Mo4V3 (IS 1570 (Part 6):1996) and GOST 5950 4H5MFS1 (GOST 5950-2000) are both steel grades. Both fall under the Tool & Die Steels category. IS 1570 (Part 6) XT127W10Co10Cr4Mo4V3 is defined under Bureau of Indian Standards (IS) (India).

As per chemical composition, IS 1570 (Part 6) XT127W10Co10Cr4Mo4V3 vs GOST 5950 4H5MFS1 is a 41.8% 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) XT127W10Co10Cr4Mo4V3:
EN ISO 4957 1.2316 IS 1570 (Part 6) 103T3 IS 1570 (Part 6) 118T3 GB/T 1299 3Cr2W8V GOST 5950 3H2W8F GOST 5950 4H5MFS DIN EN ISO 4957 1.2344 DIN EN ISO 4957 1.2379 EN ISO 683-17 100Cr6 IS 1570 (Part 6) 133T3 GB/T 1299 4Cr5MoSiV GB/T 1299 4Cr5MoSiV1
Match Breakdown
CHEMISTRY MATCH
41.8%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property IS 1570 (Part 6) XT127W10Co10Cr4Mo4V3 GOST 5950 4H5MFS1
Standard IS 1570 (Part 6):1996 GOST 5950-2000
Category Tool & Die Steels Tool & Die Steels
C (%) 1.20-1.35 0.35-0.45
Co (%) 9.50-10.50 Not specified
Cr (%) 3.50-4.50 4.5-5.5
Mo (%) 3.20-3.90 1.2-1.6
V (%) 3.00-3.50 0.3-0.6
W (%) 9.0-10.0 Not specified
Si (%) <=0.50 0.8-1.2
Mn (%) <=0.40 Not specified
P (%) <=0.030 Not specified
S (%) <=0.030 Not specified
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) XT127W10Co10Cr4Mo4V3 GOST 5950 4H5MFS1
Tensile Strength Not specified 1350-1650 MPa
Yield Strength Not specified 1150 MPa min
Elongation Not specified 9% min
Hardness Not specified 44-50 HRC
Typical Applications
IS 1570 (Part 6) XT127W10Co10Cr4Mo4V3
Not documented
GOST 5950 4H5MFS1
Used for forging dies, pressure casting dies, hot punches, extrusion tooling, and die inserts.
Key Differences
Can IS 1570 (Part 6) XT127W10Co10Cr4Mo4V3 Be Substituted With GOST 5950 4H5MFS1?
IS 1570 (Part 6) XT127W10Co10Cr4Mo4V3 and GOST 5950 4H5MFS1 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) XT127W10Co10Cr4Mo4V3
No active listings currently.
GOST 5950 4H5MFS1
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3000–3100 mm (118.11–122.05 in)
On M-EX Right Now
IS 1570 (Part 6) XT127W10Co10Cr4Mo4V3
0 active listings and RFQs →
GOST 5950 4H5MFS1
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 6) XT127W10Co10Cr4Mo4V3 and GOST 5950 4H5MFS1?
IS 1570 (Part 6) XT127W10Co10Cr4Mo4V3 specifies Co, W, Mn, P which are not specified for GOST 5950 4H5MFS1.
Can IS 1570 (Part 6) XT127W10Co10Cr4Mo4V3 be substituted with GOST 5950 4H5MFS1?
IS 1570 (Part 6) XT127W10Co10Cr4Mo4V3 and GOST 5950 4H5MFS1 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.