What Is The Turity Of Zinc Wheel Weights?

Zinc wheel weights are usually not pure zinc, but zinc alloys. They contain a mixture of zinc and other metals. The purity of zinc itself is usually between 90-95%, depending on the specific alloy used; small amounts of other elements such as aluminum, copper, etc. may be added to the zinc alloy. The addition of these alloying elements will change the hardness of zinc. For example, adding aluminum can increase the hardness of zinc alloy. When the aluminum content is appropriately increased, the hardness of zinc alloy can be increased to about 60 - 80 HB.

The Influence of Process

The manufacturing process also has an important influence on the hardness of zinc wheel weights. If it is manufactured by die casting, the liquid zinc alloy is formed under high pressure. Due to the fast cooling speed of the alloy during die casting and the dense structure, its hardness will be slightly higher than that produced by simple casting process. Moreover, after die casting, some subsequent processing, such as cold working (such as slight stamping of the surface of the balance weight), can also improve its hardness to a certain extent.

In general, the hardness of zinc wheel weights is about 30-80 HB, and the specific hardness will vary depending on the alloy composition and manufacturing process.