UNS Alloy No.BERYLCO AlloyComposition in % (Bal. Cu.)Pouring Temp Range °FMelting Range °FCharacteristics & Application
C82000 10C Be 0.45-0.80
Co 2.40-2.70		 2050-2250 1855-1955 High conductivity, good strength and good high temperature properties. Meets RWMA Class 3 requirements.
C82200 14C Be 0.35-0.80
Ni 1.00-2.00		 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
Co 0.20-0.65		 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
Co 0.35-0.70
Si 0.20-0.35		 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.
C82510 21C Be 1.90-2.15
Co 1.00-1.20
Si 0.20-0.35		 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
Co 0.35-0.65
Si 0.20-0.35		 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
Co 0.35-.070
Si 0.20-0.35		 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.

Specifications
BERYLCO castings ingots are formulated to meet all appropriate U.S. Government, ASTM, AMS, and ICI requirements.

Ingots are available in standard 5 pound sizes. Other ingot weights may be custom produced.