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GOST 5950 3H2W8F vs GOST 5950 4H5MFS

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

GOST 5950 3H2W8F (GOST 5950-2000) and GOST 5950 4H5MFS (GOST 5950-2000) are both steel grades. Both fall under the Tool & Die Steels category. GOST 5950 3H2W8F is typically used for used for forging dies, extrusion tools, hot punches, mandrels, and die inserts., while GOST 5950 4H5MFS is commonly used for used for die casting dies, forging tools, extrusion dies, punches, and hot shear blades..

As per chemical composition, GOST 5950 3H2W8F vs GOST 5950 4H5MFS is a 64.9% match. As per mechanical properties, the match is 38.7%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With GOST 5950 3H2W8F:
GB/T 1299 3Cr2W8V GB/T 1299 4Cr5MoSiV EN ISO 683-17 100Cr6 AISI 52100 IS 1570 (Part 6) 70T6 IS 1570 (Part 6) 133T3 IS 1570 (Part 6) 103T3 IS 3748 70T3 IS 1570 (Part 6) 70T3 IS 3748 80T3 IS 3748 103T3 IS 3748 50T8
Match Breakdown
CHEMISTRY MATCH
64.9%
MECHANICAL MATCH
38.7%
OVERALL
35%
Specifications
Property GOST 5950 3H2W8F GOST 5950 4H5MFS
Standard GOST 5950-2000 GOST 5950-2000
Category Tool & Die Steels Tool & Die Steels
C (%) 0.3-0.4 0.35-0.45
Cr (%) 2.2-2.7 4.5-5.5
W (%) 7.5-9.0 Not specified
V (%) 0.3-0.6 0.3-0.6
Si (%) 0.2-0.5 0.8-1.2
Mo (%) Not specified 1.2-1.6
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 3H2W8F GOST 5950 4H5MFS
Tensile Strength 1400-1700 MPa 1350-1650 MPa
Yield Strength 1200 MPa min 1150 MPa min
Elongation 8% min 9% min
Hardness 45-50 HRC 44-50 HRC
Typical Applications
GOST 5950 3H2W8F
Used for forging dies, extrusion tools, hot punches, mandrels, and die inserts.
GOST 5950 4H5MFS
Used for die casting dies, forging tools, extrusion dies, punches, and hot shear blades.
Key Differences
Can GOST 5950 3H2W8F Be Substituted With GOST 5950 4H5MFS?
GOST 5950 3H2W8F and GOST 5950 4H5MFS 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
GOST 5950 3H2W8F
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2800–4300 mm (110.24–169.29 in)
GOST 5950 4H5MFS
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
GOST 5950 3H2W8F
2 active listings and RFQs →
GOST 5950 4H5MFS
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GOST 5950 3H2W8F and GOST 5950 4H5MFS?
GOST 5950 3H2W8F specifies W which is not specified for GOST 5950 4H5MFS. GOST 5950 4H5MFS specifies Mo which is not specified for GOST 5950 3H2W8F.
Can GOST 5950 3H2W8F be substituted with GOST 5950 4H5MFS?
GOST 5950 3H2W8F and GOST 5950 4H5MFS 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.