C17300 Leaded Beryllium Copper
International Specs: CuBe2Pb, EN CW102C, DIN 2.1248
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.
Typical Uses
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
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
Ordnance: Firing Pins
Density: 0.298 lb/in3 at 68 F
Specifications
| Product Type | Temper Type |
| Bar | ASTM B196 Military Mil-C-21657 |
| Rod | ASTM B196 Military Mil-C-21657 |
| Wire | ASTM B197 |
| 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 | - |
| 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 |
| - | 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/å¡F at 68 F | 377.1 J/kg . å¡K at 293 K |
| 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 |
