There are many types of copper and its alloys, which can be divided into the following categories according to their composition and use:
1. Pure copper
Pure copper has excellent electrical conductivity, thermal conductivity and corrosion resistance. Depending on the impurity content and use, pure copper can be further subdivided into:
Electrolytic copper (T1. T2. T3) : high purity, used in electrical and electronics industry.
Oxygen-free copper (TU1. TU2. TP1. TP2): very low oxygen content, with good electrical properties and processing properties, used in electronic devices and electric vacuum devices.
2. Brass (copper-zinc alloy)
Brass is an alloy of copper and zinc, and depending on the zinc content and other added elements, brass can be further subdivided into:
Common brass: such as H63. H68. etc., the main components are copper and zinc, suitable for a variety of mechanical and decorative purposes.
Lead brass: such as HPb59-1. containing a small amount of lead, has good cutting performance, used in precision machinery parts.
Tin brass: such as HSn70-1. containing a small amount of tin, has good corrosion resistance, used in Marine engineering.
Aluminum brass: such as HAl77-2. containing a small amount of aluminum, with high strength and good corrosion resistance, used in chemical equipment and Marine engineering.
Iron brass: such as HFe58-3-1. containing a small amount of iron, with high strength and wear resistance, for high-strength mechanical parts.
Silicon brass: such as HSil63-2. containing a small amount of silicon, with good corrosion resistance and mechanical properties, used in chemical equipment.
3. Bronze (copper-tin alloy)
Bronze is an alloy of copper and tin, and depending on the other added elements, bronze can be further subdivided into:
Tin bronze: such as QSn6.5-0.1. the main components are copper and tin, with good wear resistance and mechanical properties, used in bearings, gears and other parts.
Aluminum Bronze: such as QAl9-2. containing aluminum, with high strength and good corrosion resistance, used in Marine accessories and chemical equipment.
Manganese Bronze: such as QMn5. containing manganese, has good mechanical properties and corrosion resistance, used in Marine engineering and chemical equipment.
Nickel bronze: such as QNi10. containing nickel, with excellent corrosion resistance and mechanical properties, used in Marine engineering and chemical equipment.
Beryllium bronze: such as QBe2. containing beryllium, with high strength, high hardness and good elasticity, used in springs, molds and electronic components.
4. White copper (copper-nickel alloy)
White copper is an alloy of copper and nickel, and depending on the other added elements, white copper can be further subdivided into:
Ordinary white copper: such as B30. the main components are copper and nickel, with good corrosion resistance and mechanical properties, used in ships and chemical equipment.
Iron white copper: such as BFe10-1-1. containing a small amount of iron, with high strength and wear resistance, used for high-strength mechanical parts.
Manganese white copper: such as BMn3-12. containing manganese, has good mechanical properties and corrosion resistance, used in Marine engineering and chemical equipment.
5. Special copper alloy
Beryllium copper (Beryllium Bronze) : such as C17200. containing beryllium, with high strength, high hardness and good elasticity, used in springs, molds and electronic components.
Chrome copper: such as C18200. containing chromium, with high strength and wear resistance, for resistance welding electrodes and electrical contacts.
Zirconium Copper: such as C15000. containing zirconium, with high strength and high temperature resistance, for spot welding electrodes and conductive parts in high temperature environments.
Tellurium copper: such as C14500. containing tellurium, has excellent cutting properties and electrical conductivity, used in machining and electrical connections.
Sulfur copper: such as C14700. containing sulfur, has good cutting properties and electrical conductivity, used in precision machining and electrical applications.
Summary
There are many types of copper and its alloys, and each alloy has specific properties and uses due to its different composition. According to the specific application needs to choose the appropriate copper alloy, can give full play to its characteristics to meet various industrial and technical requirements.