core · product
A nickel based corrosion-resistant alloy is an alloy that is based on nickel, contains more than 50% nickel, has certain comprehensive properties such as high temperature strength, and can withstand oxidation or water corrosion. Correspondingly, corrosion-resistant alloys with nickel content greater than 30% and nickel plus iron content greater than 50% are commonly referred to as iron nickel based corrosion-resistant alloys. The Ni Cu alloy (Monel alloy Ni 70 Cu30) produced in the United States in 1905 was the earliest nickel based corrosion-resistant alloy. In 1914, the United States began producing Ni Cr Mo Cu corrosion-resistant alloys (Illium R), and in 1920, Germany began producing Ni Cr Mo corrosion-resistant alloys containing approximately 15% Cr and 7% Mo. In the 1970s, there were nearly 50 types of corrosion-resistant alloy grades produced in various countries. Among them, Ni Cu, Ni Cr, Ni Mo, Ni Cr Mo (W), Ni Cr Mo Cu, Ni Fe Cr, Ni Fe Cr Mo and other alloy series have larger production and wider use, with a total of more than ten grades. China began developing nickel based and iron-nickel based corrosion-resistant alloys in the 1950s, and by the end of the 1970s, there were more than ten different grades.
