What is Beryllium Copper?

Beryllium is a gray, strong and lightweight metal in steel that has one of the highest melting points of light metals. It has excellent elastic modulus and thermal conductivity, is non-magnetic and withstands nitric acid concentration. Beryllium is primarily used as an alloying agent in the production of beryllium copper, with over 70% of beryllium in the world being used to produce beryllium copper.

Copper beryllium (BeCu) (also called beryllium bronze or spring copper), 0.2-2.75% beryllium and optionally other elements are alloyed by adding to the cooper. Beryllium copper is a precipitated age-hardened alloy. After aging the solution, the hardness reaches HRC38-43, and the conductivity is greatly improved. Beryllium copper can be widely used in mold manufacturing, explosion-proof stabilizers, electronic equipment, and other automotive applications where excellent strength, durability, and electrical conductivity are required.

Common product codes on the market are primarily compliant with ASTM standards, with alloy materials bearing the letter C. C17000, C17200, C17300 are the most commonly used beryllium copper materials.

Widely used American standards for beryllium copper:

  • ASTM B 194: Copper-Beryllium Alloy Plate, Sheet, Strip and Roll Bar Specifications.
  • ASTM B196: Copper-Beryllium Alloy Rod and Bar Specifications.
  • ASTM B197: Specifications for Copper-Beryllium Alloy Wire.
  • ASTM B 643: Copper-Beryllium Alloy Seamless Tube Specifications.
  • ASTM B441: Copper-Cobalt-Beryllium, Copper-Nickel-Beryllium and Copper-Nickel-Lead-Beryllium Rods and Bars (UNS no c17500, c17510, and cXNUMX) Specifications.
  • ASTM B534: Copper-Cobalt-Beryllium Alloy and Copper-Nickel-Beryllium Alloy Plate, Sheet, Strip and Roll Bar Specifications.

How Was The Beryllium Copper Alloy Classified?

According to the processing method, beryllium copper can be divided into modified beryllium copper and cast beryllium copper. It can be divided into high-strength beryllium copper (1.6% to 2.0% beryllium) and high conductivity beryllium copper (0.2% to 0.6% beryllium) depending on the beryllium content and its characteristics. The C17000, C17200 and C17300 are a high strength family with medium conductivity and the C17500 C17510 offers high conductivity with medium strength. Corresponding cast beryllium copper includes highly conductive cast beryllium copper (C82000, C82200) and high cast beryllium copper with wear resistance (C82400, C82500, C82600, C82800).

What Are Beryllium Copper Sheets And Tubes Used For?

Beryllium copper is widely used in the fields of aerospace, electronics, communications, machinery, petroleum, chemical industry, automobiles and consumer electronics. Beryllium copper sheets and tubes are film discs, diaphragms, corrugated tubes, spring washers, micromotor brushes and commutators, electrical connectors, switches, contacts, watch parts, audio parts, advanced bearings, gears, automotive electrical equipment, plastic molds. , Welding electrodes, submarine cables, pressure shells, sparkless tools, etc.

Beryllium copper alloy has similar strength limit, elasticity limit, yield limit and fatigue limit as a special steel. It has high thermal conductivity, high conductivity, high hardness, high wear resistance, high temperature stability, high creep resistance and corrosion resistance. It also has good casting properties, non-magnetism and no sparks on impact. BeCu alloys can be said to be perfect alloys with a combination of good physical, chemical and mechanical properties. For more information about beryllium copper alloys, contact us today. See Email Protected.

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