Steel 1.2345 - USD-H
1.2345 - USD-H:
higher temper resistance and hardenability.
What?
1.2345 – USD-H steel is a hot-work tool steel with increased carbon content for increased resistance to wear, higher temper resistance and hardenability.
Material properties
Properties of steel type 1.2345 – USD-H
- Increased carbon content .
- Increased resistance to wear .
- Higher temper resistance and hardenability.
Application
The most common applications for steel type 1.2345 – USD-H are:
- Cold and hot shear blades.
- Forging dies.
- Rollers for pipe manufacturing.
Physical properties of 1.2345 - USD-H steel
| Temperature in °C | 20-100 | 20-200 | 20-400 |
|---|---|---|---|
| Thermal expansion in 10-6m/m x K | 11.5 | 12.5 | 13.1 |
| Temperature in °C | 20 | 200 | 400 |
| Thermal conductivity in W/m x K | 25.0 | 26.7 | 27.3 |
| Temperature in °C | 20 | ||
| Density in g/cm3 | 7.73 | ||
| Temperature in °C | 20 | ||
| E module in GPa | 215 |
Heat treatment
| Soft annealing | Temperature: 760 – 810 °C, 4 – 6 hrs |
|---|---|
| Cooling: slow furnace cooling | |
| Hardness: max. 240 HB | |
| Hardening | Temperature: 1010 – 1040 °C |
| Cooling Oil or polymer cooling or vacuum hardening | |
| Tempering | Temperature: 520 – 620 °C |
| Hardness: see tempering curve | |
| Nitriding | Possible |
| Preheat before use | Temperature: 150 – 350 °C |
Graphs and datasheets for 1.2345 - USD-H
Continue time-temperature-transformation
Tempering
High-temperature strength
