BRASS AND HIGH TEMPERATURE BRAZING ALLOYS
This group includes four different categories of high-temp brazing alloys:
- General Purpose Brasses
- Brasses with addition of Nickel
- High temperature Copper Alloys for special applications
- Copper for furnace brazing
All these alloys are economical to use and can be generally supplied in a variety of forms (rods, wires, strips, preforms, powder and pastes). General purpose brasses can be used for brazing and for the Oxy-Fuel Gas Braze-Welding process, with liquid flux spread through the torch flame.
| Code | Composition % | Melting Range SOL-LIQ | Density | Tensile strength | Standard | ||||||||||||
| Cu | Zn | Ag | Ni | Mn | Sn | Si | B | Co | P | °C | g/cm3 | kg/mm2 | ISO 17672 | EN 1044 | AWS A5.8 | ||
General purpose Brasses |
|||||||||||||||||
| Cu60Zn | 60 | Bal | – | – | – | – | 0,3 | – | – | – | 875-895 | 8,4 | 40 | Cu 470a | CU 301 | — |  |
| Cu59ZnSn | 59 | Bal | – | – | – | 0,4 | 0,3 | – | – | – | 875-895 | 8,4 | 45 | Cu 470 | CU 302 | RBCuZn-A | |
| Cu59ZnSnMn | 59 | Bal | – | – | 0,7 | 0,4 | 0,3 | – | – | – | 870-890 | 8,4 | 45 | ~ Cu 471 | ~ CU 304 | ~ RBCuZn-C | |
| Cu59ZnAg | 59 | Bal | 1 | – | 0,1 | 0,1 | 0,1 | – | – | – | 860-890 | 8,4 | 45 | — | — | — | |
Brasses with Nickel |
|||||||||||||||||
| Cu48ZnNi10 | 48 | Bal | – | 10 | – | – | 0,3 | – | – | – | 890-920 | 8,7 | 54 | Cu 773 | CU 305 | RBCuZn-D | |
| Cu48ZnNi9Ag | 48 | Bal | 1 | 9 | – | – | 0,2 | – | – | – | 890-920 | 8,7 | 54 | — | — | — | |
| Cu53ZnNi6 | 53 | Bal | – | 6 | – | – | 0,2 | – | – | – | 900-920 | 8,5 | 49 | — | — | — | |
Copper alloys for high temperature |
|||||||||||||||||
| Cu97Ni3B | 97 | – | – | 3 | – | – | – | 0.03 | – | – | 1085-1100 | – | – | — | Cu 186 | CU 105 | |
| Cu87MnCo3 | 87 | – | – | – | 10 | – | – | – | 3 | – | 980-1030 | 8,7 | – | — | — | — | |
| Cu86MnNi2 | 86 | – | – | 2 | 12 | – | – | – | – | – | 960-990 | 8,8 | – | Cu 595 | — | — | |
| Cu85MnNi3 | 85 | – | – | 3 | 12 | – | – | – | – | – | 960-990 | 8,8 | – | Cu 595 | — | — | |
| Cu67MnNi9 | 67 | – | – | 9 | 24 | – | – | – | – | – | 950-955 | 8,2 | – | — | — | — | |
| Cu58ZnMnCo2 | 57,5 | Bal | – | – | 2 | – | – | – | 2 | – | 880-930 | 8,2 | – | — | — | — | |
| Cu55ZnMn4Ni6 | 55 | Bal | – | 6 | 4 | – | 0.3 | – | – | – | 880-920 | 8,9 | – | — | — | — | |
| CuMn38Ni9,5 | 52,2 | – | – | 9,5 | 38 | – | – | – | – | – | 880-925 | 7,7 | – | — | — | — | |
Copper (furnace brazing) |
|||||||||||||||||
| OF-Cu | 99,95 | – | – | – | – | – | – | – | – | – | 1085 | 8,9 | – | Cu 102 | CU 102 | BCu-3 | |
| ETP-Cu | 99.90 | – | – | – | – | – | – | – | – | – | 1085 | 8,9 | – | Cu 110 | CU 101 | BCu-1b | |
| DHP-Cu | Bal. | – | – | – | – | – | – | – | – | <0.07 | 1085 | 8,9 | – | Cu 141 | ~ CU 104 | BCu-1 | |
| Make-up | ||||
 |
Rods | Ø; | 1,5 ÷ 10 mm |
Length: 500 / 1.000 mm |
 |
Coated rods | Ø: | 1,5 – 2 – 2,5 – 3 – 4 mm | Length: 500 mm / Different kinds of coating available in various colours |
 |
Micro coated Rods | Ø: | 2 – 2,5 – 3 mm | Length: 500 mm |
 |
Wires | Ø: | 1 ÷ 6 mm |
Coils and spools |
 |
Strips | Thickness: | 0,2 ÷ 1 mm |
Width: 1,3 → 70 mm |
 |
Powder and Paste | |||
 |
Rings | |||
 |
Preforms from Wire and from Strip | |||