The filler material is selected according to the melting temperature of the base metal, as this type of alloy is characterised by a high melting/working temperature. The addition of silver, manganese, tin or silicon gives the alloy greater smoothness, reducing (albeit slightly) the melting temperature.
They are to be used only with a high-temperature flux and can also be supplied with a flux coating.
Nickel-brass is a popular choice for the mechanical properties it provides to joints and is widely used in the manufacture of large tools.
WELD | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Name | ISO17672 | ISO3677 | Temp. Fusion °C | |||||||
Ag | Cu | Zn | Sn | Si | Mn | Ni | ||||
WELD 1 | - | 60 | 39 | - | 0,3 | - | - | Cu 470a | - | c.a. 1085 - 1085°C |
WELD 2 | - | 59.5 | 39,95 | 0,2 | 0,2 | 0,15 | - | Cu 670 | - | c.a. 875 - 895° C |
WELD 105 | - | 53 | 41,8 | - | 0,2 | - | 5 | - | c.a. 890 - 910° C | |
WELD 110 | - | 48 | 41,8 | - | 0,2 | - | 10 | Cu 773 | - | c.a. 870 - 900 °C |
SILVERWELD 1 | 1.2 | 59 | 39,5 | - | 0,3 | - | - | - | B-Cu59ZnAg(Si) | c.a. 890 - 920 °C |
CU 100 | - | 100 | - | - | - | - | - | Cu 110 | - | c.a. 860 - 880 °C |