Fine nickel tubes are mainly used in the manufacture of stainless steel and other corrosion resistant alloys, such as nickel steel, chrome-nickel steel and various non-ferrous alloys. It is also used as hydrogenation catalyst and in ceramic products, special chemical utensils, electronic circuits, glass coating and nickel compound preparation.

Element auxiliary data:

Nickel is found in large quantities in the earth's crust, more than common metals such as lead and tin, but significantly less than iron.

Nickel is used in large quantities in alloys. The mechanical strength can be increased by adding nickel to steel. If the nickel content in steel increases from 2.94% to 7.04%, the tensile strength increases from 52.2 kg/mm 2 to 72.8 kg/mm 3. Nickel steel is used to make parts of a machine that bear heavy pressure, shock and reciprocating loads, such as turbine blades, crankshafts, and connecting rods. Nickel steel containing nickel 36%, carbon 0.3-0.5%, its expansion coefficient is very small, almost no thermal expansion and cold contraction, used to manufacture a variety of precision machinery. High nickel steel containing 46% nickel and 0.15% carbon is called "platinum-like" because its expansion coefficient is similar to that of platinum and glass, which can be fused into glass. It is very important in the production of light bulbs and can be used as a substitute for platinum wire. Some fine transparent frames, also made of this platinum-like steel, do not fall out of the frames as the lenses expand in heat and contract in cold. An alloy of 67.5% nickel, 16% iron, 15% chromium, and 1.5% manganese, with high resistance, used in various varistors and electric heaters.