TASARIMDAN İMALATA
Cold-Work Tool Steels
Archived technical data for cold-work tool steels 1.2436, 1.2379, 1.2767 and 1.2550.
1.2436
Material and applications
Ledeburitic cold-work tool steel with high wear resistance and dimensional stability during heat treatment. Used for blanking transformer and dynamo sheets up to 2 mm, paper and plastic knives, abrasive-powder pressing dies and deep-drawing dies.
Chemical composition
| Element | Content (%) |
|---|---|
| C | 2.00–2.25 |
| Si | 0.10–0.40 |
| Mn | 0.15–0.45 |
| P | 0.030 |
| S | 0.030 |
| Cr | 11.00–12.00 |
| Mo | — |
| V | — |
| W | 0.60–0.80 |
| Ni | — |
Physical properties
| Temperature | Thermal expansion coefficient (10⁻⁶ K⁻¹) | Thermal conductivity (J/(cm·s·K)) |
|---|---|---|
| 100 °C | 10.9 | 0.167 |
| 200 °C | 11.9 | — |
| 300 °C | 12.3 | — |
| 400 °C | 12.6 | 0.205 |
1.2379
Designations in the archived data sheet: AISI / ASTM D2 · DIN 1.2379 · EN X155CrMoV12 · AFNOR Z 160 CDV 12
Material and applications
Ledeburitic cold-work tool steel combining high wear resistance with toughness. Used for precision blanking of steel sheets up to 6 mm and non-ferrous sheets up to 12 mm, cold-forming dies, punches, metalware dies and thread-rolling rollers.
Chemical composition
| Element | Content (%) |
|---|---|
| C | 1.45–1.60 |
| Si | 0.10–0.60 |
| Mn | 0.20–0.60 |
| P | 0.030 |
| S | 0.030 |
| Cr | 11.00–13.00 |
| Mo | 0.60–0.80 |
| V | 0.90–1.10 |
| W | — |
| Ni | — |
Physical properties
| Temperature | Thermal expansion coefficient (10⁻⁶ K⁻¹) | Thermal conductivity (J/(cm·s·K)) |
|---|---|---|
| 100 °C | 10.5 | 0.16 |
| 200 °C | 11.5 | — |
| 300 °C | 11.9 | — |
| 400 °C | 12.2 | 0.2 |
1.2767
Material and applications
Used for sheet-cutting and cold-forming dies up to 12 mm, abrasive-powder pressing tools and cutlery dies.
Chemical composition
| Element | Content (%) |
|---|---|
| C | 0.40–0.50 |
| Si | 0.10–0.40 |
| Mn | 0.20–0.50 |
| P | 0.030 |
| S | 0.030 |
| Cr | 1.20–1.50 |
| Mo | 0.15–0.35 |
| V | — |
| W | — |
| Ni | 3.80–4.30 |
Physical properties
| Temperature | Thermal expansion coefficient (10⁻⁶ K⁻¹) | Thermal conductivity (J/(cm·s·K)) |
|---|---|---|
| 100 °C | 11.8 | 0.300 |
| 200 °C | 12.5 | — |
| 300 °C | 12.8 | — |
| 400 °C | 13.1 | 0.305 |
1.2550
Material and applications
Oil-hardenable cold-work tool steel with high impact resistance. Used for cutting sheets up to 12 mm, cold-piercing punches, pneumatic chisels, shearing and chipping blades, and woodworking tools.
Chemical composition
| Element | Content (%) |
|---|---|
| C | 0.55–0.65 |
| Si | 0.55–0.70 |
| Mn | 0.15–0.45 |
| P | 0.030 |
| S | 0.030 |
| Cr | 0.90–1.20 |
| Mo | — |
| V | 0.10–0.20 |
| W | 1.70–2.20 |
| Ni | — |
Physical properties
| Temperature | Thermal expansion coefficient (10⁻⁶ K⁻¹) | Thermal conductivity (J/(cm·s·K)) |
|---|---|---|
| 100 °C | 11.8 | 0.342 |
| 200 °C | 12.7 | — |
| 300 °C | 13.1 | — |
| 400 °C | 13.5 | 0.326 |
The thickness limits are application examples from the archive; tooling suitability also depends on the workpiece material, geometry, heat treatment and operating conditions.
These values reproduce our technical archive. Confirm the exact grade, delivery condition and required properties against the material supplier’s certificate. A dash means that the source does not specify a value.