C17200 Beryllium Copper (BeCu), also commonly known as Alloy 25, combines high strength with non-magnetic and non-sparking qualities. It has excellent metal working, forming, non-galling, and machining qualities. Since they do not trade high strength for conductivity, they are well suited to address the challenges in connectors and other harsh-environment components. Strength, conductivity, ductility, corrosion resistance, machinability, and low friction properties make BeCu alloys ideal for downhole directional tools including MWD/LWD housings, drill bit bearings, subsea actuator stems, subsea xmas trees, connectors/contacts, and assisted lift pumps. vSM stocks Alloy 25 bars between 0.750″ – 5.500″OD and Alloy 25 tubing in various configurations.
| Temper | Yield Strength (KSI) | Tensile Strength (KSI) | Elongation (EL) | Hardness (HRC) |
| AT | 145-175 (up to 3″ dia.) 130 – 175 (over 3″ dia.) | 165-200 | 4-10 (up to 3″ dia,) 3-10 (over 3″ dia.) | 36 |
| HT | 155-195 (3/8″ to 1″ dia.) 145-190 (1″ to 3″ dia.) | 180-220 (3/8″ to 1″ dia.) 175-215 (1″ to 3″ dia.) | 2-9 (3/8″ to 1″ dia.) 4-9 (1″ to 3″ dia.) | 36 |
| Beryllium(Be) | Nickel + Cobalt(Ni+Co) | Nickel + Cobalt + Iron(Ni+Co+Fe) | Cobalt(Co) | Nickel(Ni) | Iron(Fe) | Silicon(Si) |
| 1.80 – 2.00 | 0.200 – 0.350 | 0.600 Max | 0.200 Min | 0.100 Max | 0.100 Max | 0.150 Max |
| Aluminum(Al) | Tin(Sn) | Zinc(Zn) | Chromium(Cr) | Lead(Pb) | Copper(Cu) | |
| 0.100 Max | 0.050 Max | 0.050 Max | 0.010 Max | 0.010 Max | Balance |