Standard: ASTM B196M-2003/B197M-2001

●Features and applications:

C17300 beryllium copper has excellent cold workability and good hot workability. C17300 beryllium copper is mainly used as diaphragm, diaphragm, bellows, spring. And has the characteristics of no spark, and has good cutting performance

●Chemical composition:

Copper + specified element Cu: ≥99.50

Nickel+Cobalt Ni+Co: ≤0.6 (wherein Ni+Co≮0.20)

Beryllium Be: 1.8~2.0

Lead Pb: 0.20~0.60

Beryllium copper is a supersaturated solid solution copper-based alloy. It is a non-ferrous alloy with good combination of mechanical properties, physical properties, chemical properties and corrosion resistance. After solid solution and aging treatment, it has high strength limit, elasticity and elasticity. Limit, yield limit and fatigue limit, and at the same time have high electrical conductivity, thermal conductivity, high hardness and wear resistance, high creep resistance and corrosion resistance, widely used in the manufacture of various mold inserts, instead of steel production High-precision, complex-shaped molds, welding electrode materials, die-casting machines, injection molding machine punches, wear-resistant and corrosion-resistant work, etc. Beryllium copper tape is used in micro-motor brushes, mobile phones, batteries, and products, and is an indispensable and important industrial material for national economic construction.

General parameters of beryllium copper:

Density 8.3g/cm3

Hardness before quenching 200-250HV

Hardness after quenching≥36-42HRC

Quenching temperature 315℃≈600℉

Quenching time 2 hours

Softening temperature 930℃

The hardness after softening is 135±35HV

Tensile strength≥1000mPa

Yield strength (0.2%) MPa: 1035

Elastic Modulus (GPa): 128

Conductivity≥18%IACS

Thermal conductivity≥105w/m.k20℃