Inconel 706 Standard Performance Composition Usage Introduction
What are high temperature alloys? High-temperature alloys are composed of chromium, molybdenum, cobalt, nickel, iron, aluminum, copper, titanium, tungsten, boron, cerium, zirconium and other elements. They have excellent high-temperature oxidation resistance, excellent heat resistance, corrosion resistance and It has comprehensive properties such as fatigue resistance, good tensile strength and fracture toughness. It is also known as "super alloy". It is a type of metal material that can work in extreme environments for a long time. Therefore, it is widely used in aerospace, marine ships, petrochemical industry , nuclear industry and energy fields.
Let's get back to the topic (Inconel 706)
Inconel 706 is composed of nickel-chromium-iron. Adding chromium to the nickel matrix enhances its adaptability in oxidizing environments. Its corrosion resistance to inorganic acids is only moderate, but its corrosion resistance to organic acids is very good, so it is widely used in the processing of fatty acids. Inconel 706 has the advantages of high strength, high toughness, low magnetic permeability and excellent corrosion resistance. Inconel 706 is available in various product forms including rods, plates, sheets, strips, wires, tubes and fittings, flanges with welding consumables and fasteners, and is used in most welding processes except oxyacetylene, which is also available Brazing and welding.
Inconel 706 is particularly resistant to alkali corrosion. For example, in NaOH, when the NaOH concentration reaches 80%, it is also very resistant to corrosion; when sulfide is present in NaOH, its corrosion resistance is better than that of pure nickel. The annual corrosion rate of Inconel 706 in 50% sodium sulfide at 150°C is only 0.1 mm. Inconel 706 has high temperature resistance up to 871°C and excellent oxidation resistance. Inconel 706 can be used as a material for electron tubes and precision alloys (magnetic alloys, precision resistance alloys, electrothermal alloys, etc.). ), nickel-based nickel-based alloys, nickel-based corrosion-resistant alloys and shape memory alloys.
Inconel706 chemical composition
Ni39-44
Fe38
Cr14.5-17.5
Nb2.50-3.30
Co≤1
Ti≤0.40
Cu≤0.35
Mn≤0.35
Si≤0.35
C≤0.30
Al≤0.060
P≤0.020
S≤0.015
B≤0.0060
Main design features of Inconel706
A precipitation-hardening alloy of nickel-chromium iron that is easy to manufacture and process.
Inconel706 Application
INCONEL 706 This alloy is widely used in gas turbine turbine disks, shafts, fasteners and casings. The combination of high temperature strength and ease of fabrication makes it the alloy of choice for this type of application.
In the aerospace industry, the alloy is used in turbine disks, shafts and housings; diffuser housings; compressor disks and shafts; engine mounts; and fasteners. In addition to aerospace applications, the alloy is used in turbine disks for large industrial gas turbines.
Inconel706 performance parameters Inconel706 physical properties Inconel706 mechanical properties
Inconel706 mechanical properties
The high strength of precipitation-hardened INCONEL Alloy 706 is maintained at temperatures up to 1300°F (705°C). Optimum mechanical properties at the intended use temperatures are achieved by using one of two heat treatments.
Inconel706 corrosion resistance
The composition of INCONEL 706 alloy makes it resistant to corrosion in a variety of environments. The alloy's chromium content provides resistance to oxidizing media, and its nickel content provides resistance to reducing environments. Other tests showed that the alloy was less resistant to boiling 50% sulfuric acid and boiling 38% concentrated hydrochloric acid.
Inconel706 Manufacturing and Heat Treatment
Processability
Inconel 706 can be machined using conventional machining methods used for iron-based alloys. Use commercial coolants for machining operations. Use water-based coolant to perform high-speed operations such as grinding, milling or turning.
forming
Inconel 706 can be formed using all conventional techniques.
welding
Inconel 706 is welded using gas tungsten arc welding, shielded metal arc welding, submerged arc welding and gas metal arc welding methods.
heat treatment
Inconel 706 is heat treated by annealing at 927 to 1010°C (1700 to 1850°F) and then cooling.
forging
Inconel 706 is forged at temperatures from 983 to 1149°C (1800 to 2100°F).
Thermal processing
Inconel 706 is heat worked at 872 to 1149°C (1600 to 2100°F).
Cold working
Inconel 706 is cold worked using standard tooling.
annealing
Inconel 706 is annealed at 927 to 1010°C (1700 to 1850°F) and then cooled.
hardening
Inconel 706 is hardened by heat treatment.
In summary, Inconel 706 is resistant to high temperature corrosion and is a more modern and sophisticated material. This alloy can withstand higher temperatures while having excellent resistance to metal dust.
