Nickel-based alloys refer to a class of alloys that exhibit high strength and certain oxidation and corrosion resistance at high temperatures ranging from 650°C to 1000°C. Based on their primary properties, they are further categorized into nickel-based heat-resistant alloys, nickel-based corrosion-resistant alloys, nickel-based wear-resistant alloys, nickel-based precision alloys, and nickel-based shape memory alloys. High-temperature alloys are classified based on their matrix into iron-based high-temperature alloys, nickel-based high-temperature alloys, and cobalt-based high-temperature alloys. Among these, nickel-based high-temperature alloys are commonly referred to as nickel-based alloys.
The primary alloying elements are copper, chromium, and molybdenum. They exhibit excellent comprehensive properties and can withstand various acid corrosion and stress corrosion. The earliest application (produced in the United States in 1905) was nickel-copper (Ni-Cu) alloy, also known as Monel alloy (Ni 70 Cu30); Additionally, there are nickel-chromium (Ni-Cr) alloys (which are nickel-based heat-resistant alloys and heat-resistant corrosion-resistant alloys within the corrosion-resistant alloy category), nickel-molybdenum (Ni-Mo) alloys (primarily referring to the Hastelloy B series), and nickel-chromium-molybdenum (Ni-Cr-Mo) alloys (primarily referring to the Hastelloy C series), among others. Meanwhile, pure nickel is also a typical representative of nickel-based corrosion-resistant alloys. These nickel-based corrosion-resistant alloys are primarily used in the manufacture of components for various corrosion-resistant environments in industries such as petroleum, chemicals, and power generation.
Main Product Steel Types
Hastelloy C276/C22/C2000/C4/B2/B3, Inconel600/604/625/690/725, Incoloy800/825/925/800H, GH2132/2030, 904L/826/254SMOM-19/316Lmod/310Lmod/310L, S31803/S31500/S32550/S31200, Monel400/k-500, etc.
Alloying Elements
The primary alloying elements include chromium, tungsten, molybdenum, cobalt, aluminum, titanium, boron, zirconium, and others. Among these, chromium and aluminum primarily serve an antioxidant function, while other elements contribute to solid solution strengthening, precipitation strengthening, and grain boundary strengthening.
At high temperatures ranging from 650°C to 1000°C, these alloys exhibit high strength and moderate resistance to oxidation and corrosion. Due to their sufficiently high high-temperature strength and oxidation/corrosion resistance, they are commonly used in the manufacture of high-temperature components for aircraft engine blades, rocket engines, nuclear reactors, and energy conversion equipment.
Applications
Specializing in the research, development, manufacturing, and application of high-end capillary precision tubes made of high-temperature alloys, nickel-based alloys, Hastelloy alloys, alloys, stainless steel, and other materials required in the aerospace, military, medical electronics, and semiconductor industries.
Standards
ASTM A312 / A213 / A269, GB , EN , DIN , JIS , GOST . etc .
