Category: Steel

Common macroscopical defects of steel

In the process of smelting or hot processing, the internal or surface defects of steel are caused by some factors (such as non-metallic inclusions, gas and process of improper operation, etc.), which seriously affect the quality of the material or product, and sometimes it will cause material or product to be scrapped. The porosity, bubble, […]

Introduction of the role and classification of basic metals

The base metals usually refer to industrial non-ferrous metals, mainly copper, lead, nickel, zinc, and tin. In addition to copper, all base metals react with hydrochloric acid to form hydrogen. Because of their ease of extraction and large quantities, they are much less expensive than precious metals. The contracts for copper, lead, nickel and zinc are traded […]