Specification :

C17500 Details:
C17500 Cobalt Beryllium Copper
CuCo2Be— C17500 ( CDA 175) Cobalt Beryllium Copper is primarily utilized in the industry applications that require most highly thermal or electrical conductivity, which features a cobalt alloying addition ( 2.40-2.70% ) . C17500 also Offers good strength and hardness characteristics coupled with conductivity in the range of 45-60 percent of copper with ultimate tensile and hardness properties approaching 140 ksi and RB 100 respectively.
Typical Application for C17500 Cobalt Beryllium Copper Alloys:
Electrical Industry: Fuse Clips, Switch Parts, Relay parts, Connectors, Spring Connectors
Fasteners: Washers, Fasteners
Industrial: Springs, Seam Welding Dies, Resistance Welding Equipment, Resistance and Spot Welding Tips, Tooling for Plastic Moulds, Die– Casting Plunger Tips.
Available Sizes:
Custom Diameter & Sizes, Random Mill lengths
Available Products ( forms) :
Round bars, Round wires, Round tube,
Flat bars, Square bars, Rectangular bars, Hexagon bars, Plates, Sheets, Coils
Custom shapes are available upon request.
Chemical Composition:
Be: 0.40-0.70%
Co: 2.40-2.70%
Cu: Balance
Note: Copper plus additions equal 99.5% minimum.
Typical Physical Properties:

Density ( g/ cm3) : 8.83
Density before age hardening ( g/ cm3) : 8.75
Elastic Modulus ( kg/ mm2 ( 103) ) : 14.10
Thermal Expansion Coefficient ( 20 ° C to 200 ° C m/ m/ ° C) : 18 x 10-6
Thermal Conductivity ( cal/ ( cm-s-° C) ) : 0.48
Melting Range ( ° C) : 1000-1070
Note:
1) . the units are based upon Metric.
2) . the typical physical properties apply to age hardened products.
International Specification:
Rods/ Bars/ Tubes: ASTM B441, SAE J461, 463; RWMA Class 3
Strips: ASTM B534
Sheets: ASTM B534
Wires: ASTM B441
Plates: ASTM B534, SAE J461, 463; RWMA Class 3
European Standards: CuCo2Be, DIN 2.1285; CW104C to EN
Note:
ASTM: American Society for Testing and Materials
SAE: Society of Automotive Engineers
AMS: Aerospace Materials Specification ( Published by SAE)
RWMA: Resistance Welder Manufacturers' Association
Note: Unless otherwise specified, material will be produced to ASTM.
Mechanical Properties:

The Mechanical Properties will be available on request from customers.
Most Commonly Temper Used:
Rods/ Bars/ Tubes: A( TB00) , H( TD04) , AT( TF00) , HT( TH04)
Strips: A( TB00) , 1/ 4 H( TD01) , 1/ 2 H( TD02) , H( TD04)
Sheets: A( TB00) , 1/ 4 H( TD01) , 1/ 2 H( TD02) , H( TD04) , AT( TF00)
Wires: A( TB00) , 1/ 4 H( TD01) , 1/ 2 H( TD02) , 3/ 4H( TD03) , H( TD04)
Plates: AT( TF00) , HT( TH04)