Silver Brazing Alloys
Specialised Brazing Alloys
| Product | Normal Composition | Melting Range ºC | Tensile Strength Mpa | EN1044 of 1999 (replaces BS1845 of 1984); DIN 8513 of 1986 | Remarks |
|---|---|---|---|---|---|
| Argo-braze 56 | 56%Ag: Cu:In:Ni | 600-711 | 0.1-0.20 | AG 403 ; L-Ag56In:Ni | Brazing Stainless Steel in wet conditions. Argo-braze 56 is known to be resistant to interfacial corrosion under most conditions irrespective of the grade of stainless steel used. Argo-braze 56 does not contain zinc and is hence resistant to dezincification. Be aware of interfacial crevice corrosion ( failure along the stainless steel- brazing alloy interface). On small components Easy-flo Stainless Steel grade flux is recommended. |
| Silver-flo 55 | Ag:55 Cu:21 Zn:22 Sn:2 | 630-660 | 0.05-0.15 | AG 103 (AG 14); L-Ag55Sn | Pricipally used for brazing assemblies which will be exposed to sea water (cadmium-free alternative to Easy-flo 1 and Easy-flo 3 which are also suitable for marine services). |
| Silver-copper eutectic | 1Ag:72 Cu:28 | 778-778 | AG 7; L-Ag72 | Ideal for flux-less brazing of copper, nickel and metalised ceramics in a reduced atmosphere. For all other brazing methods flux is required. |
Aluminium Brazing Alloys
| Product | Normal Composition | Melting Range ºC | Tensile Strength Mpa | EN 1774 | Remarks |
|---|---|---|---|---|---|
| Alubraze | Al:4 Zn:96 | 385-402 | 283 | ZnAl4 | A low temperature brazing alloy for joining aluminium to aluminium and copper to aluminium. Suitable for manual flame and induction. Also available in a cessium based flux coated rod. |