Various types of beryllium copper and their characteristics

High strength beryllium bronze C17200 (QBe2, C1720, CuBe2, CB101), high conductivity beryllium bronze C17500 (CuCoBe, C1750, CuCo2Be, C112), C17510 (CuNiBe, C1751, CuNi2Be, C112) have high strength, good electrical and thermal conductivity , widely used in the manufacture of electronic components, electrical parts, control bearings, magnetic-sensitive element shells and resistance welding equipment, parts and so on.

Free-cutting beryllium bronze C17300 (QBe2Pb, C1730, QBe2Pb), C17300 EPb, etc. have excellent electrical conductivity, thermal conductivity, corrosion resistance, high temperature resistance, widely used in electrical plug-ins, terminals, electrical components, auto parts, elastic components, welding electrodes, Furnace components, etc.

Beryllium copper, also known as beryllium bronze, is the "king of elasticity" in copper alloys. After solution aging heat treatment, products with high strength and high electrical conductivity can be obtained. High-strength cast beryllium bronze alloy, after heat treatment, not only has high strength, high hardness, but also has the advantages of wear resistance and corrosion resistance, excellent casting performance, beryllium bronze alloy is suitable for the manufacture of various molds, explosion-proof safety tools, wear-resistant Components such as cams, gears, worm gears, bearings, etc. High conductivity cast beryllium copper alloy, which has high electrical conductivity and thermal conductivity after heat treatment, beryllium copper alloy is suitable for making switch parts, strong contacts and similar current-carrying components, making clamps, electrode materials and plastic molds for resistance welding , Hydroelectric continuous casting machine mold inner sleeve, etc.

Beryllium copper has many uses, so how many types of beryllium copper are there?

The following are beryllium copper classifications:

There are processed beryllium bronze and cast beryllium bronze.

Commonly used cast beryllium bronzes are Cu-2Be-0.5Co-0.3Si, Cu-2.6Be-0.5Co-0.3Si, Cu-0.5Be-2.5Co, etc. The beryllium content of processed beryllium bronze is controlled below 2%, and domestic beryllium copper is added with 0.3% nickel or 0.3% cobalt. Commonly processed beryllium bronzes are: Cu-2Be-0.3Ni, Cu-1.9Be-0.3Ni-0.2Ti, etc.

Beryllium bronze is a heat treatment strengthened alloy.

Processed beryllium bronze is mainly used as various advanced elastic components, especially various components that require good conductivity, corrosion resistance, wear resistance, cold resistance, and non-magnetic properties. It is widely used as diaphragm, diaphragm, bellows, micro switch Wait.

Casting beryllium bronze is used for explosion-proof tools, various molds, bearings, bearing bushes, bushings, gears and various electrodes.

Oxides and dusts of beryllium are harmful to human body, and precautions should be taken in production and use.

Beryllium copper is an alloy with good mechanical, physical and chemical properties. After quenching and tempering, it has high strength, elasticity, wear resistance, fatigue resistance and heat resistance. At the same time, beryllium copper also has high electrical conductivity. High thermal conductivity, cold resistance and non-magnetic, no sparks on impact, easy to weld and braze, excellent corrosion resistance in atmosphere, fresh water and sea water. Corrosion resistance rate of beryllium copper alloy in seawater: (1.1-1.4)×10-2mm/year. Corrosion depth: (10.9-13.8)×10-3mm/year. After corrosion, there is no change in strength and elongation, so it can be maintained in seawater for more than 40 years, and it is an irreplaceable material for submarine cable repeater structures. In sulfuric acid medium: in sulfuric acid with a concentration of less than 80% (room temperature), the annual corrosion depth is 0.0012-0.1175mm, and the corrosion is slightly accelerated when the concentration is greater than 80%.