an alloy composed of nickel and other elements. Monel alloy, which contains about 3% copper around 195, is an earlier nickel alloy. Nickel has good mechanical, physical and chemical properties. Adding appropriate elements can improve its oxidation resistance, corrosion resistance, high temperature strength and improve some physical properties. Nickel alloys can be used as materials for electronic tubes, precision alloys (magnetic alloys, precision resistance alloys, electrothermal alloys, etc.), nickel-based superalloys, nickel-based corrosion-resistant alloys and shape memory alloys. Nickel alloys are widely used in energy development, chemical industry, electronics, navigation, aviation and aerospace.

The difference between nickel alloy and stainless steel

The key to the difference is the word "base", which means "foundation". Nickel-based alloy is commonly understood as an alloy based on nickel, that is, the percentage of nickel is the highest, usually exceeding 5%, such as Monel alloy, Hastelloy B,C series, etc., while stainless steel is a kind of "steel" in essence. For example, 34L contains 9% nickel, but the content of iron is over 7%, so it is a kind of stainless steel.