C18400 Chromium Copper
Henan Gnee New Material Co., Ltd. is one of the most professional manufacturers and suppliers of c18400 chromium copper in China, specialized in providing high quality copper products with competitive price. Welcome to buy discount c18400 chromium copper for sale here from our factory. Customized orders are welcome.
C18400 copper is a leaded, high-tin bronze alloy that contains up to 6% tin, up to 2% lead, and small amounts of phosphorus and iron. This alloy is similar in composition to C18200 or C18150 copper but with higher tin content. The mother strengthens the copper and improves its resistance to wear and tear.
| Element | Content (%) |
|---|---|
| Cu | 99.2 |
| Cr | 0.8 |
C18400 copper has excellent thermal and electrical conductivity, making it ideal for electrical systems. It has a density of 8.53 g/cm3 and a melting point of 1,084°C. Its coefficient of thermal expansion is 17.7 x 10-6 K-1, and its thermal conductivity is 92 W/m·K.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.89 g/cc | 0.321 lb/in³ |
| Melting point | 1070.0°C | 1958°F |
Due to its excellent electrical conductivity and thermal properties, C18400 copper is used in electrical systems, such as wires, connectors, and terminals. It's high strength and wear resistance make it ideal for use in gears, bearings, and other machine parts. It is also used in marine applications, such as shipbuilding and the construction of offshore structures.C18400 copper has a Rockwell hardness of B80 and a Brinell hardness of 180. This hardness makes it difficult to machine but provides excellent wear resistance.C18400 copper cannot be heat treated to increase its strength or other mechanical properties. However, it can be annealed to improve its machinability.C18400 copper can be welded using TIG, MIG, spot welding, and brazing techniques. However, the high tin content of this alloy makes it difficult to weld, and special precautions are needed to prevent porosity and other welding defects.
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