C17500 beryllium copper

Basic Properties of C17500 Beryllium Copper
Alloy Type: Precipitation-hardening copper-beryllium alloy 10
Common Standards:
US UNS Number: C17500
Chinese National Standard (GB): QBe1.7
International Standard ISO: CuCo2Be
European Standard EN: CuCo2Be (CW101C)
Japanese JIS: C1750

Available shapes & sizes of C17500 Beryllium Copper    
Shape: Round, Rod Bar, Flat, Hexagon,Plate Sheet, Half-round or Customized
Sizes: Standard or Customized
Standard:     GB/T,JIS,ASTM, ISO, DIN, BS, NF etc.
Hardness: 1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard.
Packaging Details：wooden case or woven bag
Processing Service：Bending, Welding, Decoiling, Cutting, Punching
Deliver time: According to order's quantity.

Chemical Composition (%) of C17500 Beryllium Copper
Cu*    Ni    Be    Pb    Co
Remainder    0.3 max.    0.4~0.7    0.2-0.6    1.4~2.7

Mechanical Properties of C17500 Beryllium Copper
Cold working performance: C17500 beryllium copper has excellent cold working properties. It can undergo cold working processes such as stamping, stretching, and bending, and is unlikely to suffer from cracking, breaking, or deformation defects. 
Heat processing performance: The heat processing performance of this alloy is also very good. It can undergo heat processing techniques such as forging, hot rolling, and hot extrusion within the temperature range of 300℃ to 800℃. 
Heat treatment performance: Through heat treatment, the mechanical properties and corrosion resistance of the material can be improved.

Physical Properties of C17500 Beryllium Copper
Density: 8.36 - 8.44 g/cm³
Heat conductivity: 128 - 150 W/(m·K)
Electrical conductivity: 45 - 52% IACS
Hardness: 210 - 280 HV
Tensile strength: 900 - 1200 MPa
Yield strength: 600 - 1050 MPa
Extension rate: ≥ 5% 
Elastic modulus: 138 GPa 
Softening temperature: Up to 520℃
Other properties: C17500 beryllium copper also has excellent corrosion resistance, polishing properties, anti-adhesion properties, machinability, and extremely excellent welding properties.

Typical Uses for C17500 Beryllium Copper
Electrical and electronic industry (the largest application field):
High current density connectors and connectors (requiring low resistance and low temperature rise).
Contacts of relays and switches, switch components, springs, diaphragms.
Welding electrodes and their accessories (holders, bases): Utilizing their high conductivity, heat conductivity and resistance to high-temperature softening.
Battery components, semiconductor lead frames (requiring high conductivity). 
Mold industry:
Core components, inserts, and ejector pins of plastic injection molding molds (especially in areas requiring rapid cooling). Their high thermal conductivity accelerates the cooling and molding of plastics, shortening the production cycle. 
Blow molding mold components.
Some components of die casting molds (less used in C17200 applications). 
Welder equipment:
Resistance welding electrodes (spot welding, roll welding, projection welding), electrode arms, welding torch. 
Precision instruments and meters:
Require sensitive components and spring sheets that are non-magnetic, highly elastic and resistant to fatigue. 
Petroleum and natural gas tools:
Non-magnetic drill collar internal parts, sensor housing (using non-magnetic material). 
Others:
Bearings, bushings (require wear resistance).
Springs (require good electrical conductivity and resistance to stress relaxation).