Specification :

C17300 Details:
C17300 Leaded Beryllium Copper
Cube2Pb--C17300 ( CDA 173) The Leaded Beryllium Copper is identical to a version of lead-containing alloy C17200 and achieves the same exceptional strength after hardening. C17300 rods contain a small amount of lead to provide an alloy tailored for automatic machining operations and the Lead promotes formation of finely divided chips thus extending cutting tool life.
Typical Application for C17300 Leaded Beryllium Copper Alloys:
Electrical Industry: Switch Parts, Relay parts, Electrical Connectors, Fuse Clips, Contact Bridges, Electrical Motor Components, Navigational Instruments, Electrical Switch and Relay Blades.
Fasteners: Washers, Fasteners, Lock Washers, Retaining Rings, Roll Pins, Screws, Bolts
Industrial: Bushings, Non-Sparking Safety Tools, Shafts, Pumps, Springs, Welding Equipment, Rolling Mill Parts, Spline Shafts, Pump Parts, Valves, Bourdon Tubes, Bellows, Electrochemical Springs, Flexible Metal Hose
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
Custom shapes are available upon request.
Chemical Composition:
Be: 1.85-2.10%
Co+ Ni: 0.20% Min.
Co+ Ni+ Fe: 0.60% Max.
Lead: 0.20-0.60%
Cu: Balance
Note: Copper plus additions equal 99.5% minimum.
Typical Physical Properties:

Density ( g/ cm3) : 8.36
Density before age hardening ( g/ cm3) : 8.25
Elastic Modulus ( kg/ mm2 ( 103) ) : 13.40
Thermal Expansion Coefficient ( 20 ° C to 200 ° C m/ m/ ° C) : 17 x 10-6
Thermal Conductivity ( cal/ ( cm-s-° C) ) : 0.25
Melting Range ( ° C) : 870-980
Note:
1) . the units are based upon Metric.
2) . the typical physical properties apply to age hardened products.
International Specification:
Rods/ Bars/ Tubes: ASTM B196, QQ-C-530
Wires: ASTM B197, QQ-C-530
Plates: ASTM B194
European Standards: DIN 2.1248, CW102C to EN
Note:
ASTM: American Society for Testing and Materials
QQ: Federal Specification
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)
Wires: A( TB00) , 1/ 4 H( TD01) , 1/ 2 H( TD02) , 3/ 4H( TD03) , H( TD04)
Plates: A( TB00) , H( TD04) , AT( TF00) , HT( TH04)