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Nickel-copper Alloy N4
Pure nickel (N4) is a core material in many high-end manufacturing fields due to its high purity (nickel content ≥99.9%), excellent corrosion resistance, good electrical conductivity, and high-temperature stability. High purity is ensured through vacuum induction melting, and various forms of N4 products are available, such as bars, tubes, strips, wires, and plates, with a full range of specifications. Production can be carried out according to domestic and international standards.
Nickel Alloy 200
Nickel Alloy 200 is manufactured using vacuum induction melting (VIM) to ensure high purity and low gas content. Subsequent processes such as hot rolling, cold drawing, and precision grinding can produce products of various shapes and tolerances. It exhibits excellent resistance to reducing media, alkaline solutions (especially caustic soda), and numerous salt solutions; possesses high electrical conductivity and good magnetostrictive properties, making it widely applicable in the electronics field; and in sulfur-free reducing atmospheres, NI200 can be used for extended periods up to approximately 600°C, and features low gas solubility and low vapor pressure, making it suitable for aerospace components and energy applications.
Nickel Alloy 201
The core technological advantage of Nickel Alloy 201 lies in its high-purity material and extremely low carbon content design, ensuring its stability in high-temperature environments. It is used in various applications including the alkali industry (ion-exchange membrane caustic soda production), chemical equipment, food processing, electronics and electrical engineering, automotive exhaust catalysts, and aerospace. With a production capacity of 500 tons per year, the mature and stable production system can meet continuous customer demand. The product is available in various forms including plates, tubes, rods, wires, strips, and foils, with diverse specifications to meet the customized needs of customers in different industries.

High Temperature Alloy N06690

Inconel 690 is a nickel-molybdenum-chromium-iron-tungsten alloy, one of the most readily available corrosion-resistant alloys. A significant characteristic of Inconel 690 is its poor resistance to strong alkalis, especially when these alkalis are in a molten state. While it exhibits excellent resistance to dry halogen environments, nickel is not suitable for environments below the dew point of water. Inconel 690 is highly resistant to crevice corrosion in natural seawater, demonstrating excellent crevice corrosion resistance typical of corrosion-resistant alloys, with extremely low weight loss under both stagnant and flowing conditions.

I. Chemical Composition and Performance Characteristics of Inconel 690:

Inconel 690's chemical composition consists of approximately 25% chromium and 40% nickel, with some aluminum, titanium, and carbon. Due to its low chromium content and lack of molybdenum, Inconel 690 cannot be used in environments prone to pitting corrosion. For example, while Inconel 690 exhibits good corrosion resistance in flowing seawater and under seawater spray conditions, it will be damaged by pitting corrosion in stagnant seawater. With the continuous development of the aerospace industry, the development and research of high-temperature alloys have received increasing attention. High-temperature alloys refer to alloys that can withstand increased stress and possess good high-temperature properties such as corrosion resistance and oxidation resistance. Inconel 690's maximum operating temperature is 1096℃~1401℃. If Inconel 690 is aged at different temperatures (or subjected to heat), intermetallic phases such as γ2 and nitrides such as Cr2N will precipitate on the α+γ matrix. Because Inconel 690 has a low carbon content (generally 0.01%~0.02%), carbides are generally not present in the steel.

II. Inconel 690 Properties:

Inconel 690 alloy exhibits high strength over a wide temperature range. The mechanical properties of the alloy vary depending on the product form and tempering. 690 alloy is typically delivered annealed and tempered; the strength characteristics described below represent the annealed state. Typical annealing temperatures are around 1900°F (1040°C). At room temperature and high temperatures, Inconel 690 alloy exhibits high yield and ultimate strength as well as good ductility. Tensile strength may vary depending on product form and size. At high temperatures, 690 alloy retains a fairly high tensile property; temperatures above 1000°F (540°C) require a significant decrease in strength. III. Summary of Inconel 690:

In conclusion, Inconel 690 is used in a wide range of products due to its excellent electrical and thermal conductivity, good strength, good formability, and corrosion resistance.

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Featured products

Nickel-copper Alloy N4

Nickel Alloy 200

Nickel Alloy 201

High Temperature Alloy N06690