Türkçe40CrMnNiMo 8-6 -4/AISI: P20+Ni
| Chemical Composition (%) | C | Si | Mn | Cr | Mo | Ni |
| % Average | 0,40 | 0,30 | 1,45 | 1,90 | 0,20 | 1,00 |
| DIN Analysis | 0,35-0,45 | 0,20-0,40 | 1,30-1,60 | 1,80-2,10 | 0,15-0,25 | 0,90-1,20 |
| Thermal Conductivity ( W/ m.K ) | 20°C | 350°C | 700°C |
| 34,5 | 33,5 | 32,0 |
| HEAT TREATMENT | |||
| Tempature(°C) | Time (Hour) | Cooling Environment | |
| Soft Annealing | 710-740 | 2-5* | Furnace |
| Stress Relief Annealing | 550-600 | 2* | Furnace |
| Hardening | 840-870 | - | Oil, Hot bath 180-220°C |
| Tempering | 600-680 | 1 hour for every 20 mm | Air |
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