X40CrMoV5-1
1.2344THE hot work tool steel — AISI H13 / JIS SKD61. 5% Cr + Mo + V for outstanding thermal fatigue resistance, red hardness above 40 HRC at 600°C, and excellent toughness. Air-hardening — uniform hardness in large sections with minimal distortion. Used for aluminum/zinc die casting dies, extrusion dies, forging dies, hot shear blades, and plastic molds. ESR grade available for critical applications.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | AISI | USA | AISI H13 / UNS T20813 | T20813 | REF |
| 🇪🇺 | EN | Europe | X40CrMoV5-1 / 1.2344 | 1.2344 | 100% |
| 🇯🇵 | JIS | Japan | SKD61 | — | 100% |
| 🇨🇳 | GB | China | 4Cr5MoSiV1 | — | 90% |
Sources: ASTM A681, EN ISO 4957, JIS G4404, GB/T 1299
Mechanical properties — Pro
Hardened Tempered
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | ||
| Yield Strength | ||
| Elongation | ||
| Hardness HRC | ||
| Elastic Modulus | ||
| Density |
Annealed
| Property | Value | Unit |
|---|---|---|
| Hardness HB |
Annealed
| Property | Value | Unit |
|---|---|---|
| Hardness HB |
Hardened + Tempered 550°C
| Property | Value | Unit |
|---|---|---|
| Hardness HRC | ||
| Tensile Strength |
Hardened + Tempered 600°C
| Property | Value | Unit |
|---|---|---|
| Hardness HRC |
General
| Property | Value | Unit |
|---|---|---|
| Density |
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