Inconel718 has good comprehensive properties in the temperature range of -253 to 700°C. The yield strength below 650°C is the highest among deformed high-temperature alloys. It also has good oxidation resistance and corrosion resistance, as well as good processing performance and good welding performance. Ability to manufacture parts with complex shapes
Another feature of this alloy is that the alloy structure is particularly sensitive to the thermal processing process. By mastering the phase precipitation and dissolution rules in the alloy and the relationship between the structure, process, and properties, reasonable and feasible process procedures can be formulated according to different use requirements. Get parts that meet different strength levels and usage requirements. Receiver and other parts are used for a long time.
melt temperature:1260~1320℃
chemical composition(%): C 0.08 max Si 0.35 max Mn 0.35 max Cr17.0-21.0 Ni 50.0- 55.0 Mo 2.80-3.30 Fe Balance
Thermal conductivity:
θ/℃ | 11 | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 |
λ/(W/(m·C)) | 13.4 | 14.7 | 15.7 | 17.8 | 18.3 | 19.6 | 21.2 | 22.8 | 23.6 | 27.6 | 30.4 |
Specific heat capacity | |||||||||||
θ/℃ | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 | |||
c/(J/(kg·C)) | 481.4 | 493.9 | 514.8 | 539 | 573.4 | 615.3 | 657.2 | 707.4 | |||
Linear expansion coefficient | |||||||||||
θ/℃ | 20~100 | 20~200 | 20~300 | 20~400 | 20~500 | 20~600 | 20~700 | 20~800 | 20~900 | 20~1000 | |
α/10-6C-1 | 11.8 | 13 | 13.5 | 14.1 | 14.4 | 14.8 | 15.4 | 17 | 18.4 | 18.7 |