H11 / X38CrMoV5-1
1.2343Cr-Mo-V hot-work tool steel — close relative of H13 with slightly lower C and V. Good hot hardness, thermal fatigue resistance and toughness. Used for forging dies, extrusion tooling, mandrels, and die-casting tools. Often preferred over H13 where higher toughness is needed.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | AISI | USA | AISI H11 | T20811 | REF |
| 🇪🇺 | EN | Europe | X38CrMoV5-1 | 1.2343 | 100% |
Sources: ASTM A681, EN ISO 4957
Chemical composition comparison (wt%)
Side-by-side: H11 / X38CrMoV5-1 (EN ISO 4957) vs X38CrMoV5-1 (EN) (EN ISO 4957)
| Element | H11 / X38CrMoV5-1 (EN ISO 4957) | X38CrMoV5-1 (EN) | Overlap |
|---|---|---|---|
| C | — | 0.33–0.41% | — |
| Si | — | 0.8–1.2% | — |
Mechanical properties
Compatibility verdict
H11 / X38CrMoV5-1 and X38CrMoV5-1: 100% composition match
Related materials
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1.2080High-carbon high-chromium cold-work tool steel. Excellent wear resistance and dimensional stability after heat treatment. Used for blanking and forming dies, drawing mandrels, gauges, shear blades, and thread rolling dies. Not suitable for impact loading.
D2 / X155CrVMo12-1
1.2379Premium high-carbon high-chromium cold-work tool steel with vanadium and molybdenum. Air-hardening with minimal distortion. Superior wear resistance and edge retention. The global benchmark for cold stamping dies, blanking tools, shear blades, and forming tools.
P20 / 40CrMnMo7
1.2311Pre-hardened plastic mold steel (usually delivered at 28-34 HRC). The most widely used mold base steel globally. Good machinability in pre-hardened condition, good polishability. Used for injection molds, die-casting dies, extrusion tooling, and structural mold components.
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