Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
JIS G4404 SKD1 (JIS G4404:2006) and GOST 5950 3H2W8F (GOST 5950-2000) are both steel grades.
Both fall under the Tool & Die Steels category.
JIS G4404 SKD1 is typically used for cold forming dies, bending dies, while GOST 5950 3H2W8F is commonly used for used for forging dies, extrusion tools, hot punches, mandrels, and die inserts..
JIS G4404 SKD1 is defined under Japanese Industrial Standards (JIS) (Japan).
As per chemical composition, JIS G4404 SKD1 vs GOST 5950 3H2W8F is a 62.2% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 35%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
JIS G4404 SKD1
GOST 5950 3H2W8F
Hardness HRC (hardened)
58-64
Not specified
Hardness HB (annealed)
<=269
Not specified
Tensile Strength
Not specified
1400-1700 MPa
Yield Strength
Not specified
1200 MPa min
Elongation
Not specified
8% min
Hardness
Not specified
45-50 HRC
Typical Applications
JIS G4404 SKD1
Cold forming dies, bending dies
GOST 5950 3H2W8F
Used for forging dies, extrusion tools, hot punches, mandrels, and die inserts.
Key Differences
JIS G4404 SKD1 specifies Mn which is not specified for GOST 5950 3H2W8F.
GOST 5950 3H2W8F specifies W, V which are not specified for JIS G4404 SKD1.
Can JIS G4404 SKD1 Be Substituted With GOST 5950 3H2W8F?
JIS G4404 SKD1 and GOST 5950 3H2W8F 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.
What is the difference between JIS G4404 SKD1 and GOST 5950 3H2W8F?
JIS G4404 SKD1 specifies Mn which is not specified for GOST 5950 3H2W8F. GOST 5950 3H2W8F specifies W, V which are not specified for JIS G4404 SKD1.
Can JIS G4404 SKD1 be substituted with GOST 5950 3H2W8F?
JIS G4404 SKD1 and GOST 5950 3H2W8F 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.