Wuxi supplies nickel-based alloys
Our company's main cooperative steel plants include Shougang, Shougang, Benxi Iron and Steel, Jianlong, Tonghua Iron and Steel, Changzhi, Jiyuan, Tiangang, Tiantie, Shandong Luli, Weifang Iron and Steel and more than ten A well-known domestic high-quality special steel manufacturer. Among them, the sales volume of high-quality carbon steel, stainless steel alloy steel, bearing steel, rM round steel price tool and die steel, gear steel, spring steel, chromium-molybdenum steel, synthetic steel, high-tech steel, and easy-cut steel has ranked first in Tianjin and East China. At the forefront of regional peers.
Super stainless steel and nickel-based alloy are a special kind of stainless steel. First of all, they are different from ordinary stainless steel in chemical composition. They refer to a high-alloy stainless steel containing high nickel, high chromium, and high molybdenum. Secondly, in terms of high temperature resistance or corrosion resistance, compared with PVB, it has better high temperature resistance or corrosion resistance and is irreplaceable. In addition, from the classification of stainless steel, the metallographic structure of special stainless steel is a stable austenite metallographic structure. Since this special stainless steel is a high-alloy material, the manufacturing process is quite complex. Generally, people can only rely on traditional processes to manufacture this special stainless steel, such as pouring, forging, rolling, etc. High-temperature alloy materials are increasingly widely used in many fields such as chemical industry, power generation, aviation and aerospace, atomic reactors, etc., and their operating temperatures are also increasing year by year. However, social progress has put forward higher and never-ending requirements for high-temperature alloys.
People are now concerned about whether nickel-based alloys, the eldest among high-temperature alloys, are approaching the limits of their use after years of continuous progress. After all, the melting point of base nickel is only ℃. Do we continue to exploit its potential, or do we look for other materials to replace it? It is still difficult to answer these questions satisfactorily. Although niobium-based, aluminum-based, tungsten-based superalloys and other high-temperature alloys have higher heat resistance temperatures than nickel-based superalloys, problems in resource reserves and manufacturing processes make it difficult for them to fully replace nickel-based alloys.
The heat-resistant temperature of high-temperature ceramic materials is several hundred degrees higher than that of nickel-based alloys. There have been reports of successful operation of ceramic engines using them. However, the current huge price difference also makes it difficult for ceramic engines to replace high-temperature alloys, at least in the near future. Therefore, the status of nickel-based superalloys as the heart of engines will not be shaken in the near future. With the adoption and improvement of surface treatment technology and cooling technology, the use temperature of high-temperature alloys is expected to further increase, allowing aviation and space shuttles to move towards higher and further goals.
Shape memory alloy is a kind of metal material with special memory function. This type of material can automatically restore its original shape under certain conditions after undergoing certain plastic deformation. Metal materials with such properties are collectively called shape memory alloys. . This type of metal material has been used in space antennas, pipe joints, medicine, etc., and its development momentum is also very gratifying.
Nickel-based high-temperature alloys occupy a particularly important position in the entire field of high-temperature alloys. They are widely used to manufacture the hottest components of aviation jet engines and various industrial gas turbines. If MH lasting strength is used as the standard, the temperature that current nickel alloys can withstand is >℃, while nickel alloys are about ℃, and iron-based alloys are <℃, that is, nickel-based alloys are correspondingly higher than ℃ to about ℃. So people call nickel alloy the heart of the engine. At present, in advanced engines, nickel alloys account for half of the total weight. Not only turbine blades and combustion chambers, but also turbine disks and even later compressor blades have begun to use nickel alloys. Compared with iron alloys, the advantages of nickel alloys are: higher working temperature, stable structure, less harmful phases, and greater ability to oxidize and corrode. Compared with cobalt alloys, nickel alloys can operate at higher temperatures and stresses, especially in moving blade applications.
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Wuxi supplies INCONEL600 nickel-based alloy