Copper Alloys
*All compositions represent the Nominal Composition in %
| Aimtek Alloy# | Industry Specifications | Cu % | Ag % | P % | Zn % | Ni % | Others % | Solidus (Melting Point) °F | Solidus (Melting Point) °C | Liquidus (Flow Point) °F | Liquidus (Flow Point) °C | Common Applications |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CU110 | AWS A5.8 BCu-1b CDA110 (ETP) | 99.9 | 1981 | 1083 | 1981 | 1083 | Electrolytic tough pitch alloy for general purpose steel brazing | |||||
| CU180 | AWS A5.8 BCu-1 | 99.9 | 1981 | 1083 | 1981 | 1083 | General purpose steel, furnace brazing | |||||
| CU181 | AWS A5.8 BVCu-1x | 99.99 | 1981 | 1083 | 1981 | 1083 | High purity, Oxygen-free, Steel, Iron-based materials, Vacuum Brazing | |||||
| CU865 | AWS A5.8 BCu-2 | 86.5 | 1981 | 1083 | 1981 | 1083 | Low purity Copper filler | |||||
| CU701 | AWS A5.8 BCu-3 AMS4701 CDA102 (OFHC) MSRR9500/100 | 99.95 | 1981 | 1083 | 1981 | 1083 | High purity, Oxygen-free, Steel, Iron-based materials, Vacuum Brazing | |||||
| CU740 | AWS A5.8 BCu-1a AMS4740 AMS3430 | 99 | 1981 | 1083 | 1981 | 1083 | Pure Copper powder and paste applications | |||||
| S0 | AWS A5.8 BCuP-2 | 92.75 | 7.25 | 1310 | 710 | 1460 | 793 | General purpose, Silver-free, Copper, Brass, and Bronze | ||||
| S5 | AWS A5.8 BCuP-3 | 89 | 5 | 6 | 1190 | 643 | 1495 | 813 | Large Copper pipe, wider gaps | |||
| S6 | AWS A5.8 BCuP-4 | 86.75 | 6 | 7.25 | 1190 | 643 | 1325 | 718 | Close fit-up, low melting range | |||
| S15 | AWS A5.8 BCuP-5 QQ-B-654A Grade 3 (III) | 80 | 15 | 5 | 1193 | 643 | 1475 | 802 | Wide gaps, ductile joints, wide availability of forms | |||
| S2 | AWS A5.8 BCuP-6 | 91 | 2 | 7 | 1190 | 643 | 1450 | 788 | General purpose, Copper, Brass, and Bronze | |||
| S18M | AWS A5.8 BCuP-8 | 76 | 17.6 | 6.35 | 1190 | 643 | 1190 | 643 | Close gaps, automated brazing, eutectic alloy | |||
| NVBR | AWS A5.8 RBCuZn-A | 59 | 40.4 | 0.63 Sn | -18 | -18 | Commonly referred to as Naval Bronze | |||||
| NIBR | AWS A5.8 RBCuZn-B | 58 | 39.5 | 0.5 | 0.5 | -18 | -18 | Commonly referred to as Nickel Bronze | ||||
| LFB | AWS A5.8 RBCuZn-C | 58 | 40 | 0.95 Sn, 0.73 Fe, 0.25 Mn, 0.1 Si | 1595 | 868 | 1620 | 882 | Low fuming Bronze, General purpose Ferrous and Non-Ferrous | |||
| NIAG | AWS A5.8 RBCuZn-D | 48 | 41.9 | 10 | 0.15 Si | 1665 | 907 | 1680 | 916 | Commonly referred to as Nickel Silver, for Steel to Carbide brazing |