BERYLCO Casting Alloy Selection Table
|UNS Alloy No.||BERYLCO Alloy||Composition in % (Bal. Cu.)||Pouring Temp Range °F||Melting Range °F||Characteristics & Application|
|2050-2250||1855-1955||High conductivity, good strength and good high temperature properties. Meets RWMA Class 3 requirements.|
|2050-2250||1840-1960||High conductivity, good strength and good high temperature properties. Excellent resistance welding material. Meets RWMA Class 3 requirements.|
|C82400||165C *||Be 1.60-1.85
|1900-2050||1650-1825||High strength, hardness, with good resistance to corrosion. Suitable for salt water immersion applications. Excellent replication of intricate detail.|
|C82500||20C *||Be 1.90-2.25
|1850-2050||1575-1800||High strength, hardness, wear resistance and excellent fluidity. Ideal for investment, shell, sand, ceramic castings. Meets requirements for Class 4 RWMA resistance welding. Excellent replication of intricate detail.|
|1850-2350||1575-1800||An excellent fine grain structure, particularly where superheating is necessary to flow metal in long thin sections. Produces a superior as-cast finish when exceeding normal pouring temperatures of other beryllium copper casting alloys. Properties are similiar to 20C. Meets RWMA Class 4 requirements. May be cast in same types of molds as 20C.|
|C82600||245C *||Be 2.25-2.55
|1850-2000||1575-1750||High strength, hardness, wear resistance and excellent fluidity. Low pouring temperature is ideal for pressure and permanent mold applications.|
|C82800||275C *||Be 2.50-2.85
|1825-1925||1575-1700||Highest strength and hardness of BeCu alloys; excellent wear resistance and fluidity. For extremely fine detail pick-up in ceramic or pressure cast processes. Lowest pouring temperature of BeCu alloys allows most any type of molding process to be used.|
|—||Cu-4Be||Be 3.50-4.50||—||—||A beryllium containing copper base master alloy used to introduce beryllium into new melts or to replace beryllium lost through oxidation in remelts.|
|* When fine grain castings are required, 0.02 to 0.12 Ti can be added to the above chemistries. The designation would then be CT.
Ingots are available in standard 5 pound sizes. Other ingot weights may be custom produced.