Also known as spring copper and beryllium bronze, beryllium copper is one of the highest strength copper-based alloys in the market. At Yamato Gokin, we manufacture seven types of beryllium copper alloys with characteristics and mechanical properties optimized for use in the manufacturing and metalworking industries like our own.
High-Beryllium Copper 25 and 165 (BF/BD)
Our beryllium copper 25 alloy (C1720) has the highest strength and hardness in the copper alloy family. This material has not only the strength equal to that of special steel, but also an excellent spring quality, electrical conductivity, wear resistance, and corrosion resistance, due to our unique heat treatment. Our beryllium copper 165 alloy (C1700) contains a low amount of beryllium, but it does not sacrifice it’s high strength mechanical properties.
FEATURES:
▸Strength equal to Special Steel
▸Highest hardness of copper alloys
▸Spring quality
▸Electrical conductive
▸Wear resistant
▸Corrosion resistant (due to unique heat treatment method)
MAIN APPLICATIONS:
▸Resistance welding electrodes
▸Electrode wheels
▸Welding machine parts
▸Cable repeaters
▸Dies and molds
▸Bearings
Low-Beryllium Copper 50 (BZF/BZD)
With our beryllium copper 50 (C17510), we make bars by means of drawing and can make any shape of alloy by forging or casting. It can be used in a wide range of applications, depending on the beryllium contents and characteristics, and contains a very low amount of beryllium (about 0.2%-0.4%).
FEATURES:
▸High electrical conductivity
▸Precipitation-hardened by aging
▸Low Beryllium content
▸Heat resistant
※The conductivity of this alloy is the highest in the beryllium copper alloy family.
※ High mechanical properties can be obtained via heat treatment.
MAIN APPLICATIONS:
▸Resistance welding electrodes
▸Tip bases
▸Spot welding gun arms
▸Screw adapters
▸Base tips for insert cards
▸Insert electrodes (renewable)
▸Bearing material
▸Die-casting plunger tips