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GOST 5950 4H5MFS1 vs IS 1570 (Part 6) XT35Cr5MoV1

Close Alternative — 80.1% match based on chemical composition and mechanical property overlap.

GOST 5950 4H5MFS1 (GOST 5950-2000) and IS 1570 (Part 6) XT35Cr5MoV1 (IS 1570 (Part 6):1996) are both steel grades. Both fall under the Tool & Die Steels category. IS 1570 (Part 6) XT35Cr5MoV1 is defined under Bureau of Indian Standards (IS) (India).

As per chemical composition, GOST 5950 4H5MFS1 vs IS 1570 (Part 6) XT35Cr5MoV1 is a 80.1% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 80.1%.

Frequently Compared With GOST 5950 4H5MFS1:
GB/T 1299 4Cr5MoSiV1 GOST 5950 4H5MFS EN ISO 683-17 100Cr6 GB/T 1299 4Cr5MoSiV EN ISO 4957 1.2316 AISI 52100 IS 1570 (Part 6) 133T3 DIN EN ISO 4957 1.2344 DIN EN ISO 4957 1.2379 IS 3748 103T3 IS 1570 (Part 6) 103T3 IS 1570 (Part 6) 118T3
Match Breakdown
CHEMISTRY MATCH
80.1%
MECHANICAL MATCH
No shared data
OVERALL
80.1%
Specifications
Property GOST 5950 4H5MFS1 IS 1570 (Part 6) XT35Cr5MoV1
Standard GOST 5950-2000 IS 1570 (Part 6):1996
Category Tool & Die Steels Tool & Die Steels
C (%) 0.35-0.45 0.30-0.40
Cr (%) 4.5-5.5 4.75-5.50
Mo (%) 1.2-1.6 1.20-1.60
V (%) 0.3-0.6 1.00-1.20
Si (%) 0.8-1.2 0.80-1.20
Mn (%) Not specified 0.25-0.50
P (%) Not specified <=0.035
S (%) 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 GOST 5950 4H5MFS1 IS 1570 (Part 6) XT35Cr5MoV1
Tensile Strength 1350-1650 MPa Not specified
Yield Strength 1150 MPa min Not specified
Elongation 9% min Not specified
Hardness 44-50 HRC Not specified
Typical Applications
GOST 5950 4H5MFS1
Used for forging dies, pressure casting dies, hot punches, extrusion tooling, and die inserts.
IS 1570 (Part 6) XT35Cr5MoV1
Not documented
Key Differences
Can GOST 5950 4H5MFS1 Be Substituted With IS 1570 (Part 6) XT35Cr5MoV1?
GOST 5950 4H5MFS1 and IS 1570 (Part 6) XT35Cr5MoV1 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
Forms & Sizes Available on M-EX
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)
IS 1570 (Part 6) XT35Cr5MoV1
No active listings currently.
On M-EX Right Now
GOST 5950 4H5MFS1
2 active listings and RFQs →
IS 1570 (Part 6) XT35Cr5MoV1
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between GOST 5950 4H5MFS1 and IS 1570 (Part 6) XT35Cr5MoV1?
IS 1570 (Part 6) XT35Cr5MoV1 specifies Mn, P, S which are not specified for GOST 5950 4H5MFS1.
Can GOST 5950 4H5MFS1 be substituted with IS 1570 (Part 6) XT35Cr5MoV1?
GOST 5950 4H5MFS1 and IS 1570 (Part 6) XT35Cr5MoV1 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.