X45NiCrMo4 / AISI: 6 F 7
Delivery Method : Normalized, annealed 180-220HB
Uses : It is a cold work tool steel with high hardenability and very high toughness. It is widely used in forks, spoons, knives and mint molds, cutting dies where thick sheets are cut, cold forging and shaping tools, and patterning and bending dies. Since it can be polished, it can be preferred in some plastic molds. Impact resistance is very high.
| Chemical Composition (%) | C | Cr | Mo | Ni | | % Average | 0,45 | 1,35 | 0,25 | 4,05 | | DIN Analysis | 0,40-0,50 | 1,20-1,50 | 0,15-0,35 | 3,80-4,30 |
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| Thermal Conductivity ( W/ m.K ) | 20°C | 350°C | 700°C | | 30,0 | 30,5 | 32,0 |
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HEAT TREATMENT DATA
| | | Temperature (°C) | Time (Hours) | Cooling Environment
| Softening Annealing
| 610-650 | 2-5* | Baked
| Stress Relieving
| 600-650 | 2* | Baked
| Hardening
| 840-870 | - | Oil, 180-220 ° C, air
| Tempering
| 180-300 | 1 hour for every 20 mm
| air
|
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*Time interval varying depending on the section.
