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CuBe2Pb UNS C17300 (Alloy M25) Leaded Beryllium Copper Rod

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A). CuBe2Pb – UNS. C17300 Details
UNS.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 Rods:

Electrical Industry: RF Coaxial Connector, Switch Parts, Relay parts, Electrical Connectors, Fuse Clips, Contact Bridges, Electrical Motor Components, Navigational Instruments, Electrical Switch and Relay Blades.
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):
Rod, Bars, Round bars, Round wires
Custom shapes are available upon request.

C17300 Leaded Beryllium Copper Alloys Rod/Bar
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.

C17300 Leaded Beryllium Copper Alloys Rod / Bar
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

1). the units are based upon Metric.
2). the typical physical properties apply to age hardened products.
C17300 Leaded Beryllium Copper Alloys Rod/ Bars
International Specification

Rods/Bars/Tubes: ASTM B196, QQ-C-530
Wires: ASTM B197, QQ-C-530

European Standards: CuBe2Pb, Alloy M25, DIN 2.1248, CW102C to EN

ASTM: American Society for Testing and Materials
QQ: Federal Specification
Note: Unless otherwise specified, material will be produced to ASTM.

C17300 Leaded Beryllium Copper Alloys Rod/Bar
Mechanical Properties:
The Mechanical Properties will be available on request from customers.

Most Commonly Temper Used:

Rods/Bars: H(TD04)
Wires: A(TB00),1/4 H(TD01),1/2 H(TD02),3/4H(TD03),H(TD04)


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