Easy cut beryllium copper – alloy M25 ( UNS C17300 ) or Lead Beryllium Copper (Cube2Pb)–C17300 (CDA 173) 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.
Commercial applications for this engineering material include:
Corrosion-resistant components; Current carrying springs; Welding electrodes; Electrical and electronic connectors.
Available Sizes: Custom Diameter & Sizes, Random Mill lengths
Co+Ni: 0.20% Min.
Co+Ni+Fe: 0.60% Max.
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.
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
ASTM: American Society for Testing and Materials
QQ: Federal Specification
Note: Unless otherwise specified, material will be produced to ASTM.
Most Commonly Temper Used:
Wires: A(TB00),1/4 H(TD01),1/2 H(TD02),3/4H(TD03),H(TD04)