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AISI 52100 vs GOST 5950 4H5MFS

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

AISI 52100 and GOST 5950 4H5MFS (GOST 5950-2000) are both steel grades. Both fall under the Tool & Die Steels category. AISI 52100 is typically used for anti-friction bearings, ball screws, precision rollers, while GOST 5950 4H5MFS is commonly used for used for die casting dies, forging tools, extrusion dies, punches, and hot shear blades.. AISI 52100 is defined under AISI (United States).

As per chemical composition, AISI 52100 vs GOST 5950 4H5MFS is a 59.5% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With AISI 52100:
EN ISO 683-17 100Cr6 EN ISO 4957 1.2316 GB/T 1299 3Cr2W8V DIN EN ISO 4957 1.2344 GOST 5950 3H2W8F GB/T 1299 4Cr5MoSiV1 DIN EN ISO 4957 1.2379 GB/T 1299 4Cr5MoSiV GOST 5950 4H5MFS1 IS 3748 103T3 IS 3748 118T3
Other Tool & Die Steels Grades to Compare With AISI 52100:
IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
59.5%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property AISI 52100 GOST 5950 4H5MFS
Standard AISI GOST 5950-2000
Category Tool & Die Steels Tool & Die Steels
C (%) 0.93–1.05 0.35-0.45
Si (%) 0.15–0.35 0.8-1.2
Mn (%) 0.25–0.45 Not specified
Cr (%) 1.35–1.60 4.5-5.5
S (%) ≤0.025 Not specified
P (%) ≤0.025 Not specified
Mo (%) Not specified 1.2-1.6
V (%) Not specified 0.3-0.6
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property AISI 52100 GOST 5950 4H5MFS
Tensile Strength ≥620 MPa (annealed) 1350-1650 MPa
Hardness HRC 60–66 (hardened) Not specified
Hardness HB 179–229 (annealed) Not specified
Yield Strength Not specified 1150 MPa min
Elongation Not specified 9% min
Hardness Not specified 44-50 HRC
Typical Applications
AISI 52100
Anti-friction bearings, ball screws, precision rollers
GOST 5950 4H5MFS
Used for die casting dies, forging tools, extrusion dies, punches, and hot shear blades.
Key Differences
Can AISI 52100 Be Substituted With GOST 5950 4H5MFS?
AISI 52100 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
AISI 52100
Round Bar → (3 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3000–3200 mm (118.11–125.98 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
AISI 52100
3 active listings and RFQs →
GOST 5950 4H5MFS
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between AISI 52100 and GOST 5950 4H5MFS?
AISI 52100 specifies Mn, S, P which are not specified for GOST 5950 4H5MFS. GOST 5950 4H5MFS specifies Mo, V which are not specified for AISI 52100.
Can AISI 52100 be substituted with GOST 5950 4H5MFS?
AISI 52100 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.