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ASTM A681 D2 vs GOST 5950 4H5MFS

Minimal Match — 38.6% match based on chemical composition and mechanical property overlap.

ASTM A681 D2 (ASTM A681:2008) and GOST 5950 4H5MFS (GOST 5950-2000) are both steel grades. Both fall under the Tool & Die Steels category. ASTM A681 D2 is typically used for blanking dies, punches, drawing dies, forming tools, while GOST 5950 4H5MFS is commonly used for used for die casting dies, forging tools, extrusion dies, punches, and hot shear blades.. ASTM A681 D2 is defined under ASTM International (United States).

As per chemical composition, ASTM A681 D2 vs GOST 5950 4H5MFS is a 58% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 38.6%.

Frequently Compared With ASTM A681 D2:
DIN EN ISO 4957 1.2379 EN ISO 4957 1.2316 EN ISO 683-17 100Cr6 GB/T 1299 4Cr5MoSiV1 DIN EN ISO 4957 1.2344 AISI 52100 GOST 5950 3H2W8F GB/T 1299 4Cr5MoSiV GB/T 1299 3Cr2W8V GOST 5950 4H5MFS1 IS 3748 103T3 IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
58%
MECHANICAL MATCH
0%
OVERALL
38.6%
Specifications
Property ASTM A681 D2 GOST 5950 4H5MFS
Standard ASTM A681:2008 GOST 5950-2000
Category Tool & Die Steels Tool & Die Steels
C (%) 1.40-1.60 0.35-0.45
Mn (%) 0.10-0.60 Not specified
P (%) <=0.030 Not specified
S (%) <=0.030 Not specified
Si (%) 0.10-0.60 0.8-1.2
Cr (%) 11.00-13.00 4.5-5.5
V (%) 0.50-1.10 0.3-0.6
Mo (%) 0.70-1.20 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 ASTM A681 D2 GOST 5950 4H5MFS
Hardness <=255 HB 44-50 HRC
Condition Annealed (maximum Brinell hardness) Not specified
Tensile Strength Not specified 1350-1650 MPa
Yield Strength Not specified 1150 MPa min
Elongation Not specified 9% min
Typical Applications
ASTM A681 D2
Blanking dies, punches, drawing dies, forming tools
GOST 5950 4H5MFS
Used for die casting dies, forging tools, extrusion dies, punches, and hot shear blades.
Key Differences
Can ASTM A681 D2 Be Substituted With GOST 5950 4H5MFS?
ASTM A681 D2 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
ASTM A681 D2
Round Bar → (19 listings)
Diameter: 70–120 mm (2.76–4.72 in)
Length: 2600–6900 mm (102.36–271.65 in)
Flat Bar → (3 listings)
Thickness: 30–30 mm (1.18–1.18 in)
Width: 150–150 mm (5.91–5.91 in)
Length: 1000–2500 mm (39.37–98.43 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
ASTM A681 D2
22 active listings and RFQs →
GOST 5950 4H5MFS
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A681 D2 and GOST 5950 4H5MFS?
ASTM A681 D2 specifies Mn, P, S which are not specified for GOST 5950 4H5MFS.
Can ASTM A681 D2 be substituted with GOST 5950 4H5MFS?
ASTM A681 D2 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.