Alloy Of Silver And Copper

Silver-copper alloy refers to the silver alloy with copper as the main alloying element. Silver-copper alloy refers to the silver alloy with copper as the main alloying element. In order to improve performance, nickel, beryllium, lithium, vanadium and other elements are often added. Mainly used as electric contact material and brazing material. The copper content in silver copper alloy is different, the color is different, from silver white through rose red to red, the crystallization is fine, no brittleness, the wear resistance is better than sterling silver. Its outstanding feature is strong resistance to sulfide a. Used as electrical contact materials are AgCu5, AgCu7.5, AgCu10, AgCu15, AgCu25 and so on. It has good mechanical properties a, wear resistance and fusion welding resistance, mainly used as high voltage, high current relay contacts and light and medium load circuit electrical contacts.

The copper content in the silver copper alloy is different, and the color is different, from silver white through rose red to red. Fine crystal, no brittleness, better wear resistance than sterling silver. Its outstanding feature is strong resistance to sulfide. Used as electrical contact materials are AgCu5, AgCu7.5, AgCu10, AgCu15, AgCu20, AgCuNi20-2, AgCu25 and so on.

The hardness of silver copper alloy is higher than silver, its electrical and thermal conductivity is better than other alloys, and the price is low. This alloy including contact material has been widely used in practice. There are many grades of silver copper alloy, 92.5% silver copper alloy is called currency silver alloy, 90% silver copper alloy is called coin silver alloy, 71.9% silver copper is called eutectic alloy, and 10% silver copper alloy is called hard silver. In the field of low current use, the alloy can be used as sliding contacts such as phase commutators and rotary switches for micromotors, and in the field of large current use, it can be used in equipment with high contact pressure and oil protection. The representative composition of silver copper alloy is 95% silver copper, 92.5% silver copper, 90% silver copper, 60% silver copper and 5% silver copper alloy.

Silver copper alloy wire can be processed and derived from a variety of cables, such as power cables, communication cables, control cables, special cables, these cables are widely used in power, railway, communications, aviation, medical, transportation, construction, ships and other industries.

In terms of physical properties, silver copper alloy wire has good electrical conductivity, thermal conductivity, high strength, corrosion resistance, high temperature stability.

Silver copper alloy also has good mechanical properties, wear resistance and fusion welding resistance, mainly used as high voltage, high current relay contacts and light, medium load circuit electrical contacts, used as brazing materials are mainly AgCu7.5, AgCu25, AgCu28, AgCu55, with AgCu28 the most widely used. With good conductivity, fluidity and wettability, it is widely used in electric vacuum industry. Due to the resistance of long-term load under high temperature, it is only suitable for brazing parts with working temperature below 400℃. Silver and copper alloys are also commonly used in coins and ornaments. Alloys used as coins are AgCu7.5, AgCu8, AgCu10, etc. Used as decorations are AgCu8.4, AgCu12.5 and so on.

Silver copper alloy, a binary alloy of silver and copper, copper has a strengthening effect. It has good electrical conductivity, fluidity and wettability, good mechanical properties, high hardness, wear resistance and welding resistance. There is a tendency to segregate. The ingot can be cold processed into sheet, sheet and wire after homogenization and annealing by vacuum medium frequency furnace. For air circuit breakers, voltage controllers, telephone relays, contactors, starters and other devices contact, conductive ring and fixed contact plate. Vacuum filler metal, commutator, can also make coins, decorations and tableware.

Quality and control standards meet BS EN13601 ASTM B846 ASTM B624 American standard ASTM B105/624, European standard (EN13602), Japanese standard (JIS H3260), DIN CEN/TS 13388, BS EN 50149, GB/T 5231, GB/T 21652, etc.

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