2024-05-30
Today we will look at the difference between pure nickel and nickel alloy. The silver pieces are pure nickel, containing more than 99% nickel; this large piece is a turbine saw blade, which is a nickel alloy.
Let's use a strong magnet to see first. Nickel alloy is not magnetic, but pure nickel is magnetic, and the magnetism is quite strong. Many people ask why pure nickel is magnetic, but nickel alloy is not? Nickel is originally a magnetic metal. Nickel alloy has no magnetism because it reacts with other elements, and some are demagnetized.
Nickel alloy is not magnetic
Pure nickel is magnetic
Let's use a grinder to grind it again and see what the sparks are. Nickel alloy has no sparks, let's take a look at pure nickel. Pure nickel also has no sparks.
Nickel metal (Nickel) is a hard, ductile and ferromagnetic metal that can be highly polished and corrosion-resistant. Nickel is an iron-loving element, and the core of the earth is mainly composed of iron and nickel elements. Because nickel has good corrosion resistance, it is often used in electroplating, and nickel-cadmium batteries contain nickel. Mainly used in alloys (such as nickel steel and nickel silver) to make currency, etc., and can be plated on other metals to prevent rust. Mainly used to make stainless steel and other corrosion-resistant alloys, such as nickel steel, nickel-chromium steel and various non-ferrous metal alloys. Copper-nickel alloys with a high nickel content are not easy to corrode. The nickel recycling price is now around 160, and the market is stable.