Enquiry
| Material No. | Code |
|---|---|
| 1.2764 | X19NiCrMo4 |
Chemical Composition
| Elements | C | Si | Mn | P | S | Cr | Mo | Ni | W |
|---|---|---|---|---|---|---|---|---|---|
| Min. (≥) | 0.16 | 0.10 | 0.15 | 1.10 | 0.15 | 3.80 | 0.30 | ||
| Max. (≤) | 0.22 | 0.40 | 0.45 | 0.030 | 0.030 | 1.40 | 0.25 | 4.30 | 0.50 |
Steel Properties
Case hardening steel, when hardened high core strength, good polishability in hardened condition.
Applications
Press tools, highly stressed plastic moulds, profiling rolls.
Condition Of Delivery
Soft annealed to max. 250 HB
Physical Properties
| Thermal expansion coefficient | [ 10-6 .m / m - K ] | 20 - 100oC / 11.5 | 20 - 200oC / 12.0 | 20 - 300oC / 12.4 | 20 - 400oC / 12.8 |
|---|---|
| Thermal conductivity | [ W / m - K ] | 20oC / 32.9 | 350oC / 33.8 |
Heat treatment
| Temperature | Cooling | Hardness | |
|---|---|---|---|
| Soft annealing | 620 - 660 oC | Furnace | max. 250 HB |
| Stress relief annealing | 600 - 650 oC | Furnace |
| Hardening | ||||
|---|---|---|---|---|
| Carburizing | Intermediate Annealing | Austenitizing Temperature | Cooling | Tempering |
| 860 - 890 | 600 - 630 | 780 - 810 | Oil or Hot Bath 180 - 220 |
See tempering diagram |
| 800 - 830 | Air | |||
