Brass is an alloy of copper and zinc, with a beautiful yellow color, collectively known as brass. According to its chemical composition, brass is divided into ordinary copper and special brass.
Ordinary brass is a binary alloy of copper and zinc. Due to its good plasticity, it is suitable for manufacturing plates, bars, wires, tubes and deep-drawn parts, such as condensers, heat pipes, electro-mechanical parts, etc. Brass alloys with an average copper content of 62% and 59% can also be cast, which is called cast brass.
Special brass is a metal-based alloy. In order to obtain higher strength, corrosion resistance and good casting performance, aluminum, silicon, manganese, lead, tin and other metals are added to the copper-zinc alloy to form special brass. Such as lead brass, tin brass, aluminum brass, silicon brass, manganese brass, etc. Easy-to-process brass, especially the CZ100 grade with a machinability rating of 121%, is also known for its superior machinability.
The following are some common special brass.
Lead brass
Lead brass is one of the most widely used special brasses, with excellent machinability and wear resistance. The lead content of lead brass is less than 3%, and a small amount of Fe, Ni or Sn is often added.
Tin brass
Tin brass is brass with tin plated on copper-zinc alloy. A special brass that contains about 1% tin. Adding a small amount of tin can increase the strength and hardness of brass, prevent dezincification, and improve the corrosion resistance of brass.
Silicon brass
Silicon in silicon brass can improve the mechanical properties, wear resistance and corrosion resistance of copper. Silicon brass is mainly used to manufacture marine parts and chemical machinery parts.
Manganese brass
Manganese copper is a resistance alloy with copper and manganese as the main components. It produces standard resistors, shunts and resistance elements in instruments and meters.
Post time: Mar-31-2025