Our C17000 beryllium copper Products

Chemical composition of C17000 beryllium-copper alloy (typical values)

Beryllium (Be): 1.6 - 1.8%

Cobalt (Co): 0.2 - 0.6% (used to refine grains and enhance performance)

Copper (Cu): The remainder (approximately 97% or more)

Other trace elements: such as nickel, iron, etc. (in trace amounts).

Main characteristics of C17000 beryllium copper alloy

l High strength and hardness: Through solution hardening treatment (heat treatment), the tensile strength can reach 1100 - 1400 MPa, and the hardness can reach HRC 38 - 42.

l Good electrical conductivity: Approximately 22 - 28% IACS (International Annealed Copper Standard), superior to most high-strength alloys.

l Fatigue resistance: Suitable for high-frequency or cyclic load scenarios (such as springs, connectors).

l  wear resistance: Used in high-wear environments (such as molds, bearings).

l Non-magnetic: Suitable for electronic and medical equipment.

Physical Properties of C17000 Beryllium Copper Alloy

Elastic Modulus:  19 x 106 psi (131 Gpa)

Density: 0.304 lb/in3  (8.41 g/cm3)

Poisson's Ratio: 0.3

Relative Magnetic Permeability: <1.01

Cu+Be+Co+Ni+Fe: 99.5%min

Electrical Conductivity: 22-30% IACS (12.8-17.5 MS/m)

Thermal Conductivity: 70°F / 20°C - 60 BTU/ft•hr•°F (105 W/m•K)

Coefficient of Thermal Expansion:  9.7 ppm/°F   (17.5 ppm/°C)

Heat Capacity:  70°F / 20°C - 0.086 BTU/lb•°F  (360 J/kg K)

Heat Capacity:  200°F / 100°C - 0.097 BTU/lb•°F  (406 J/kg K)

Melting Range: 1600 - 1800 °F  (870 - 980 °C)