Ni200 pure nickel alloy has a slightly lower nickel content than Ni201, in which the content of Ni and Co is greater than 99.5%,and the content of other impurities is not higher than 0.5%. Ni200 has the characteristics of acid and alkali resistance,especially its outstanding alkali corrosion resistance. It has excellent alkali and neutral solution medium for carbonate,nitrate, sulfate, chloride and acetate salt Corrosion resistance, stable performance in atmosphere, fresh water and sea water. At the same time, it also has good processing performance and high electric vacuum performance. Therefore, Ni200 is widely used in chemical, chemical, mechanical and electronic industries, and is mainly used to make various alkali-resistant equipment.

 Ni201 pure nickel is a pure nickel grade with extremely low carbon content. It has been used to serve high temperature environments up to 1230 °C. It has excellent corrosion resistance to caustic soda, chlorine, etc. In particular, it is used in the material environment of diaphragm electrolytic caustic soda production equipment. Similar grades of Ni201 are Alloy 201, N02201,2.4068, Nickel 201. Ni201 nickel wire has good mechanical strength, corrosion resistance and high heat resistance, and is suitable for making vacuum devices, electronic instrument components, and filters for chemical production of strong alkalis. Ni201 pure nickel product is suitable for radio, electric light source, machinery manufacturing, chemical industry, and is an important structural material in vacuum electronic devices.