660 stainless steel composition and characteristics and application forging
660 stainless steel, also known as A286 stainless steel, is an austenitic stainless steel with high strength and good corrosion resistance at high temperatures. Its main components include iron (Fe), nickel (Ni), molybdenum (Mo), chromium (Cr), manganese (Mn), titanium (Ti), aluminum (Al) and vanadium (V). Below is some information about the composition and characteristics of 660 stainless steel and the application forging::
Composition: Iron (Fe): The main element, which provides basic mechanical properties and corrosion resistance.
Nickel (Ni): Improves corrosion resistance and high temperature resistance.
Molybdenum (Mo): Improves corrosion resistance and oxidation resistance.
Chromium (CR): Increases corrosion resistance and oxidation resistance.
Manganese (MN): Improves strength and hardness.
Titanium (Ti): Increases strength and stability.
Aluminum (AL): Increases corrosion resistance and high temperature resistance.
Vanadium (V): Improves strength and high temperature resistance.
Characteristics: High strength: 660 stainless steel has high tensile strength and yield strength, which makes it have good mechanical properties at high temperatures.
Good corrosion resistance: It has excellent corrosion resistance and can be used for a long time in acidic, alkaline and salt corrosive environments.
Good high temperature resistance: 660 stainless steel retains good strength and corrosion resistance at high temperatures, making it suitable for applications in high temperature environments.
Oxidation resistance: It is able to resist oxidation and thermal oxidation, and maintain the finish and corrosion resistance of the surface.
Application Forging: 660 stainless steel is suitable for applications in various high temperature and corrosive environments, common application areas include:
Engine parts at high temperatures: such as turbine blades, exhaust pipes, turbine seats, etc.
Chemical equipment: such as reactors, heat exchangers, steam generators, etc.
Oil & Gas Industry: Such as Well Tools, Pipelines and Valves, etc.
During the forging process of 660 stainless steel, the following conditions should be noted:
Forging temperature: Generally forged between 950°C and 1150°C.
Forging speed: The forging speed should be adjusted according to the specific shape and size to avoid material quality problems caused by being too fast or too slow.
Annealing: After forging is completed, solution annealing is usually required to relieve stress and improve the toughness and corrosion resistance of the material.
Please note that the above information is for reference only, and specific forging conditions and application recommendations should be determined based on specific material specifications and engineering needs.