Altemp718 superalloy is a high-temperature, corrosion-resistant special alloy material, with a wide range of applications and excellent physical and chemical properties. This article will introduce the material, chemical composition, hardness, density, heat treatment, mechanical properties, mechanical properties, application fields and welding process of ALTEMP718 superalloy in detail. By in-depth knowledge of these aspects, readers can gain a more comprehensive understanding of Altemp718 superalloy and its wide range of applications in engineering.
Material and chemical composition**
Altemp718 superalloy is mainly composed of iron, nickel, cobalt and chromium and other elements, and the specific chemical composition includes: nickel (Ni) about 55%, chromium (Cr) about 17%, and iron (Fe) about 185%, cobalt (CO) about 5%, molybdenum (Mo) about 3%, aluminum (Al) about 28%, titanium (Ti) about 1%, silicon (Si) about 06%, etc. In addition, it contains a small amount of copper (Cu), manganese (Mn), carbon (C) and vanadium (V) and other elements, the addition of which gives Altemp718 superalloy excellent properties and special physicochemical properties.
Hardness and density**
The hardness of Altemp 718 superalloy can reach about 36-40 HRC (Rockwell hardness) in the heat treated state, and its density is about 819 grams of cubic centimeters, with high density characteristics.
Heat Treated**Altemp 718 superalloy can be treated with solutions and aging to achieve excellent properties. Solution treatment is typically performed at temperatures between 980°C and 1100°C, followed by rapid cooling to increase the strength of the alloy;The aging treatment is carried out at a temperature of about 720°C to further improve the strength and toughness of the alloy.
Mechanical and mechanical properties**
Altemp718 superalloy exhibits excellent tensile strength and thermal fatigue resistance in high-temperature environments, and its tensile strength can reach more than 1200MPa. The material also maintains relatively stable oxidation resistance at high temperatures, which can maintain the structural integrity of the material at high temperatures and pressures. In addition, Altemp718 superalloy also has excellent corrosion resistance, which can operate stably for a long time in complex corrosive environments.
Areas of application**
Altemp718 superalloy is widely used in aerospace, aero engine, chemical, shipbuilding, nuclear energy and other fields, in these fields, Altemp718 superalloy is usually made into bearings, blades, turbine disks, bolts and other high-temperature and high-pressure working parts. Its excellent high-temperature performance and corrosion resistance make it an important structural material.
Welding process**
Altemp718 superalloy is usually processed by TIG (argon arc welding), MIG (gas shielded welding) and other welding processes. In the welding process, it is necessary to pay attention to controlling the welding temperature and selecting the appropriate welding materials to ensure the quality of the welded joints, avoid cracks and porosity, so as to ensure the integrity and performance of ALTEMP718 superalloy.
In general, Altemp718 superalloy, as an excellent superalloy material, has excellent physical and chemical properties and a wide range of application prospects. Through an in-depth understanding of its material, chemical composition, hardness, density, heat treatment, mechanical properties, mechanical properties, application fields and welding processes, it can be better applied to practical projects to meet the needs of various high temperature and high pressure working environments.
Form: plates, rods, tubes, steel strips, wires, forgings, forging pipes, forging plates, forging rods, round bars, plates, thin plates, seamless pipes, welded pipes, round bars, wires, steel plates, round rounds, strips.
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