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Soft soldering aluminised tube ?
What preparation, what flux?
| Tim Stevens | 09/12/2020 10:08:53 |
 1779 forum posts 1 photos | I need to solder a new tube into a vehicle cooling system - steel tube soft soldered into a brass angle-piece. My client has obtained aluminised tube (exhaust) which is the right size and shape, but will it solder, and if so, how? The overlap of tube to boss is about 25mm (one inch). Thanks in advance for your advice Regards, Tim |
| Dave Halford | 09/12/2020 10:44:10 |
| 2536 forum posts 24 photos | I would remove the plating in the joint area and fully tin the area before assembly. |
| Keith Hale | 09/12/2020 13:10:19 |
 334 forum posts 1 photos | Hi Tim Simply use a liquid soft soldering flux SPECIFICALLY for aluminium. Follow this with 60/40 tin/lead solder. Or you could adopt a cheaper option of using a soft solder wire with a flux core suitable for aluminium. It's cheaper because you're buying less flux and in a form that can be sent through the post at minimum cost. You know where to find both items!🤔 What puzzles me is why you didn't ring them in the first place. One phone call and you get the advice and materials. Best wishes Keith |
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All Forum Topics > Materials > Soft soldering aluminised tube ?