Close Alternative — 79% match
based on chemical composition and mechanical property overlap.
EN ISO 4957 X155CrVMo12-1 (EN ISO 4957:2018) and JIS G4404 SKD11 (JIS G4404:2006) are both steel grades.
Both fall under the Tool & Die Steels category.
EN ISO 4957 X155CrVMo12-1 is typically used for blanking dies, forming dies, thread rolling dies, gauges, while JIS G4404 SKD11 is commonly used for precision blanking dies, cold forming tools, gauges.
EN ISO 4957 X155CrVMo12-1 is defined under European Standard (EN), originating from Europe, while JIS G4404 SKD11 is defined under Japanese Industrial Standards (JIS), originating from Japan.
As per chemical composition, EN ISO 4957 X155CrVMo12-1 vs JIS G4404 SKD11 is a 68.5% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a close alternative overall at 79%.
Frequently Compared With EN ISO 4957 X155CrVMo12-1:
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN ISO 4957 X155CrVMo12-1
JIS G4404 SKD11
Hardness HRC (hardened)
58–62
58-62
Hardness HB (annealed)
≤255
<=255
Wear Resistance
Excellent
Not specified
Typical Applications
EN ISO 4957 X155CrVMo12-1
Blanking dies, forming dies, thread rolling dies, gauges
Can EN ISO 4957 X155CrVMo12-1 Be Substituted With JIS G4404 SKD11?
EN ISO 4957 X155CrVMo12-1 and JIS G4404 SKD11 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.
What is the difference between EN ISO 4957 X155CrVMo12-1 and JIS G4404 SKD11?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN ISO 4957 X155CrVMo12-1 be substituted with JIS G4404 SKD11?
EN ISO 4957 X155CrVMo12-1 and JIS G4404 SKD11 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.