What material is a copper wrench

The material of copper is mainly divided into aluminum bronze and beryllium bronze.
Aluminum bronze is yellow in color and has a hardness of over 25 degrees. In flammable gases, friction and collision do not produce sparks. Copper based alloys with aluminum as the main alloying element are aluminum bronze containing iron and manganese elements, belonging to high-strength heat-resistant bronze. Aluminum bronze has high strength, hardness, and wear resistance, and is commonly used to manufacture gear blanks, threads, and other parts. Aluminum bronze has excellent corrosion resistance, so it can be used to manufacture corrosion-resistant parts such as propellers, valves, etc. Aluminum bronze does not generate sparks under impact and can be used to manufacture spark free tool materials.
Beryllium bronze is yellow red in color, with a hardness between 38 and 43. Beryllium bronze is both anti magnetic and explosion-proof, making it more suitable for use in more demanding situations. It has the characteristics of wear resistance, low melting resistance, and no magnetism. Beryllium bronze is a bronze with beryllium as the main additive element. The beryllium content of beryllium bronze is 0.2%~2%, and a small amount of cobalt or nickel third component (0.2%~2.0%) is added. This alloy can be heat treated for strengthening. It is an ideal high conductivity, high-strength elastic material. Beryllium bronze is non magnetic, resistant to sparks, wear, corrosion, fatigue, and stress relaxation. And it is easy to cast and press to form. Beryllium bronze castings are typically used as molds for plastic or glass, Electric resistance welding electrodes, explosion-proof tools for oil mining, protective covers for Submarine communications cable, etc. The typical use of beryllium bronze processing material is for current carrying springs, connectors, contacts, fastening springs, leaf and spiral springs, bellows, and lead frames in electronic devices.