Strong Match — 97.3% match
based on chemical composition and mechanical property overlap.
EN ISO 4957 X38CrMoV5-1 (EN ISO 4957:2018) and ASTM A681 H11 (ASTM A681:2008) are both steel grades.
Both fall under the Tool & Die Steels category.
EN ISO 4957 X38CrMoV5-1 is typically used for die casting dies, extrusion tooling, forging dies, while ASTM A681 H11 is commonly used for die casting dies, extrusion tooling, forging dies.
EN ISO 4957 X38CrMoV5-1 is defined under European Standard (EN), originating from Europe, while ASTM A681 H11 is defined under ASTM International, originating from United States.
As per chemical composition, EN ISO 4957 X38CrMoV5-1 vs ASTM A681 H11 is a 95.9% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 97.3%.
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 X38CrMoV5-1
ASTM A681 H11
Hardness HRC (hardened)
40–54
Not specified
Hardness HB (annealed)
≤235
Not specified
Hot Strength
Excellent to 600°C
Not specified
Hardness
Not specified
<=235 HB
Condition
Not specified
Annealed (maximum Brinell hardness)
Typical Applications
EN ISO 4957 X38CrMoV5-1
Die casting dies, extrusion tooling, forging dies
ASTM A681 H11
Die casting dies, extrusion tooling, forging dies
Key Differences
ASTM A681 H11 specifies P, S which are not specified for EN ISO 4957 X38CrMoV5-1.
Can EN ISO 4957 X38CrMoV5-1 Be Substituted With ASTM A681 H11?
EN ISO 4957 X38CrMoV5-1 and ASTM A681 H11 overlap closely enough on chemistry and mechanical properties that ASTM A681 H11 is often considered as a substitute for EN ISO 4957 X38CrMoV5-1 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between EN ISO 4957 X38CrMoV5-1 and ASTM A681 H11?
ASTM A681 H11 specifies P, S which are not specified for EN ISO 4957 X38CrMoV5-1.
Can EN ISO 4957 X38CrMoV5-1 be substituted with ASTM A681 H11?
EN ISO 4957 X38CrMoV5-1 and ASTM A681 H11 overlap closely enough on chemistry and mechanical properties that ASTM A681 H11 is often considered as a substitute for EN ISO 4957 X38CrMoV5-1 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.