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 Pdf
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