C17300 Leaded Beryllium Copper (CDA 173)
Wire in coils available in continuous length or small coils
This alloy is an age-hardened alloy having developed higher strengths while maintaining acceptable levels of toughness for many industrial applications. The age-hardening response of this alloy depends on the factors of time, temperature, and cold work applied to the metal. Toughness, fatigue strength, corrosion resistance, etc., can be modified and controlled by either under-aging or over-aging during the precipitation hardening process of the alloy.
| International Specifications | CuBe2Pb, EN CW102C, DIN 2.1248 |
Typical Uses for C17300 Leaded Beryllium Copper
- Electrical: Contact Bridges, Electrical Switch and Relay Blades, Electric Motor Components, Navigational Instruments, Clips, Electrical Connectors, Connectors, Relay Parts, Switch Parts, Fuse Clips
- Fasteners: Washers, Screws, Bolts, Retaining Rings, Roll Pins, Lock Washers, Fasteners
- Ordnance: Firing Pins
- Industrial: Spline Shafts, Pump Parts, Valves, Non Sparking Safety Tools, Flexible Metal Hose, Bushings, Rolling Mill Parts, Electrochemical Springs, Pumps, Shafts, Springs, Bellows, Welding Equipment, Diaphragms, Bourdon Tubing
Product Specifications
| Product Type | Temper Type |
| Bar |
ASTM B196 Military Mil-C-21657 |
| Rod |
ASTM B196 Military Mil-C-21657 |
| Wire | ASTM B197 |
Chemical Composition
| Cu (1) | Al | Be | Co (2) | Pb | Si | |
| Min/Max | Rem. | .20 | 1.8 - 2.00 | .20 min | .20 - .6 | .20 |
| Nominals | 97.7 | - | 1.90 | - | .40 | - |
Mechanical Properties
| Temper | Sect. Size | Cold Work | Type Min | Temp | Tensile Strength | YS 0.05% UL |
YS 0.02% Offset |
YS 0.005% Offset |
Elong. | RH B |
RH C |
RH F |
RH 30T |
VH 500 |
BH 500 |
BH 3000 |
Shear Strgth |
Fatigue Strgth |
Izod Impact Strgth |
| - | in. | % | - | F | ksi | ksi | ksi | ksi | % | B | C | F | 30T | 500 | 500 | 3000 | ksi | ksi | ft-lb |
| - | mm. | - | - | C | MPa | MPa | MPa | MPa | - | - | - | - | - | - | - | - | MPa | MPa | J |
| Rod | |||||||||||||||||||
| TH04 | 1.1 | 0 | TYP | 68 | 190 | - | 175 | - | 3 | - | - | - | - | - | - | - | - | 41 | 0.0 |
| - | 0.0 | - | - | 20 | 1310 | - | 1207 | - | 3 | - | - | - | - | - | - | - | - | 283 | 0.0 |
| TF00 | 0.0 | 0 | TYP | 68 | 182 | - | 130 | - | 6 | - | 39 | - | - | - | - | - | - | - | 0.0 |
| - | 0.0 | - | - | 20 | 1255 | - | 896 | - | 6 | - | 39 | - | - | - | - | - | - | - | 0.0 |
| TD04 | 1 | 0 | TYP | 68 | 105 | - | 90 | - | 15 | 95 | - | - | - | - | - | - | - | - | 0.0 |
| - | 25.4 | - | 20 | 724 | - | 621 | - | 15 | 95 | - | - | - | - | - | - | - | - | - | 0.0 |
| TH04 | 0.375 | 0 | TYP | 68 | 200 | - | 90 | - | 3 | - | - | - | - | - | - | - | - | - | 0.0 |
| - | 0.0 | - | - | 20 | 1379 | - | 621 | - | 3 | - | - | - | - | - | - | - | - | - | 0.0 |
| TD04 | 1.1 | 0 | TYP | 68 | 100 | - | 90 | - | 15 | 95 | - | - | - | - | - | - | - | - | 0.0 |
| - | 25.4 | - | 20 | 689 | - | 621 | - | 15 | 95 | - | - | - | - | - | - | - | - | - | 0.0 |
| TD04 | 0.375 | 0 | TYP | 68 | 112 | - | 90 | - | 15 | 95 | - | - | - | - | - | - | - | - | 0.0 |
| - | 9.525 | - | - | 20 | 772 | - | 621 | - | 15 | 95 | - | - | - | - | - | - | - | - | 0.0 |
| TB00 | 0.0 | 0 | TYP | 68 | 68 | - | 25 | - | 48 | 6 | - | - | 62 | - | - | - | - | - | 0.0 |
| - | 0.0 | - | - | 20 | 469 | - | 172 | - | 48 | 6 | - | - | 62 | - | - | - | - | - | 0.0 |
| TH04 | 1 | 0 | TYP | 68 | 195 | - | 178 | - | 5 | - | - | - | - | - | - | - | - | - | 0.0 |
| - | 0.0 | - | - | 20 | 1344 | - | 1227 | - | 5 | - | - | - | - | - | - | - | - | - | 0.0 |
| WIRE | |||||||||||||||||||
| TF00 | 0.0 | 0 | TYP | 68 | 178 | - | 160 | - | 3 | - | - | - | - | - | - | - | - | - | 0.0 |
| - | 0.0 | - | - | 20 | 1227 | - | 1103 | - | 3 | - | - | - | - | - | - | - | - | - | 0.0 |
| TD04 | 0.0 | 0 | TYP | 68 | 152 | - | 125 | - | 1 | - | - | - | - | - | - | - | - | - | 0.0 |
| - | 0.0 | - | - | 20 | 1048 | - | 162 | - | 1 | - | - | - | - | - | - | - | - | - | 0.0 |
| TD02 | 0.0 | 0 | TYP | 68 | 122 | - | 100 | - | 5 | - | - | - | - | -- | - | - | - | - | 0.0 |
| - | 0.0 | - | - | 20 | 841 | - | 689 | - | 5 | - | - | - | - | - | - | - | - | - | 0.0 |
| TH03 | 0.0 | 0 | TYP | 68 | 210 | - | 190 | - | 1 | - | - | - | - | - | - | - | - | - | 0.0 |
| - | 0.0 | - | - | 20 | 1448 | - | 1310 | - | 1 | - | - | - | - | - | - | - | - | - | 0.0 |
| TH04 | 0.0 | 0 | TYP | 68 | 212 | - | 195 | - | 1 | - | - | - | - | -- | - | - | - | - | 0.0 |
| - | 2 | - | - | 20 | 1462 | - | 1344 | - | 1 | - | - | - | - | - | - | - | - | - | 0.0 |
| TH02 | 0.0 | 0 | TYP | 68 | 200 | - | 185 | - | 1 | - | - | - | - | - | - | - | - | - | 0.0 |
| - | 0.0 | - | - | 20 | 1379 | - | 1276 | - | 1 | - | - | - | - | - | - | - | - | - | 0.0 |
| TB00 | 0.00 | 0 | TYP | 68 | 68 | - | 28 | - | 35 | - | - | - | - | - | - | - | - | - | 0.0 |
| - | 0.0 | - | - | 20 | 469 | - | 193 | - | 35 | - | - | - | - | - | - | - | - | - | 0.0 |
| TD03 | 0.0 | 0 | TYP | 68 | 142 | - | 120 | - | 2 | - | - | - | - | - | - | - | - | - | 0.0 |
| - | 0.0 | - | - | 20 | 979 | - | 827 | - | 2 | - | - | - | - | - | - | - | - | - | 0.0 |
| TH01 | 0.0 | 0 | TYP | 68 | 190 | - | 175 | - | 2 | - | - | - | - | -- | - | - | - | - | 0.0 |
| - | 0.0 | - | - | 20 | 1310 | - | 1207 | - | 2 | - | - | - | - | - | - | - | - | - | 0.0 |
| TD01 | 0.0 | 0 | TYP | 68 | 102 | - | 82 | - | 10 | - | - | - | - | - | - | - | - | - | 0.0 |
| - | 0.0 | - | - | 20 | 703 | - | 565 | - | 10 | - | - | - | - | - | - | - | - | - | 0.0 |
Physical Properties
| Product Property | US Customary | Metric |
| Melting Point - Liquidus | 1800 F | 982 C |
| Melting Point - Solidus | 1590 F | 866 C |
| Density | 0.298 lb/in3 at 68 F | 8.25 gm/cm3 @ 20 C |
| Specific Gravity | 8.260 | 8.26 |
| Electrical Resistivity | 46.20 ohms-cmil/ft @ 68 F | 7.68 microhm-cm @ 20 C |
| Electrical Conductivity | 22 %IACS @ 68 F | 0.129 MegaSiemens/cm @ 20 C |
| Thermal Conductivity | 62 Btu · ft/(hr · ft2 · oF)at 68F | 107.3 W/m · oK at 20 C |
| Modulas of Elasticity in Tension | 18500 ksi | 128000 MPa |
| Modulus of Rigidity | 7300 ksi | 50330 MPa |
| Specific Heat Capacity | 0.090 Btu/lb/oF at 68 F | 377.1 J/kg · oK at 293 K |
Fabrication
| Joining Technique | Suitability |
| Brazing | Good |
| Butt Weld | Fair |
| Capacity for Being Cold Worked | Excellent |
| Capacity for Being Hot Formed | Good |
| Coated Metal Arc Welding | Good |
| Gas Sheilded Arc Welding | Good |
| Machinability rating | 50 |
| Oxyacetylene Welding | Not Recommended |
| Seam Weld | Fair |
| Soldering | Good |
| Spot Weld | Good |
Our Services
Aviva Metals Houston warehouse operation is a AS9120B, and AS9100D in our Ohio foundry, based on ISO 9001:2015. We are now also offering our complete range of brass, bronze and copper alloys in precision machined or milled parts, in full accordance with your drawings. Aviva Metals creates custom precision bearings and bushings, flanges, washers, double flange bearings, full half bearings, spacers and special machined parts that can be shipped on a global basis and in full accordance with most international standards.
