Specifications of Japanese Pure Copper Castings
When manufacturers use copper to make castings, they typically focus on alloyed copper, which is a mixture of copper and other metals to provide greater strength, machinability and other useful properties. However, Japanese pure copper castings are an important exception to that rule. Japanese pure copper castings offer excellent chemical and physical properties and are used extensively in a variety of industries and applications.
Physical Properties: Japanese pure copper castings are made from copper with a minimum material purity of 99.9%, with phosphorus and sulfur being the primary impurities. These castings have a density of 8.895 g/cm3 and a melting point of 1083oC. They maintain a strength of up to 240 MPa with a hardness of 60-80 HB, and undergo minimally strain-hardening when cold worked.
Chemical Properties: Japanese pure copper castings provide superior corrosion resistance when exposed to air and other natural elements. They can also withstand high temperatures and environmental changes without significant degradation. Furthermore, their superior electrical conductivity, thermal conductivity and strength make them an ideal choice for electrical wiring, condensers and electromagnets.
Uses: Japanese pure copper castings are used in a variety of industries, including electronics, automobiles and aerospace. They are also utilized to create heat exchangers, engine parts, valves and other items related to these key industries. In addition, Japanese pure copper castings are used to produce medical instruments and tools which must be precise and retain their desired shape in the long term.
Characteristics: Japanese pure copper castings are highly flexible, allowing manufacturers to create intricate, complex designs which are difficult to produce with other copper alloys. They also offer superior free machining characteristics, allowing machines to operate more quickly and efficiently. Finally, these castings are easy to weld, braze and solder, which improves performance and supports easier maintenance in the long term.
Overall, Japanese pure copper castings are used extensively in a wide range of industries and applications. They offer superior chemical and physical properties, superior corrosion resistance, excellent electrical and thermal conductivity, superior strength and excellent machinability. Finally, these castings are characterized by their flexibility, precision and ease of welding, which enhance their performance and support easier maintenance.
