Welcome to the Weldability Sif Technical Knowledge Database. We answer many technical questions daily in assisting customers with selecting and using our products in their applications. You can search these questions using the box below, to find the answers you seek.
There are 30 results for your query:
A. Sifalumin No 27 is not recommended.Sifalumin No 37
is the recommended rod as it contains 5.3% Magnesium and gives optimum weld strength.
A. To improve colour match use Sif Phosphor Bronze No 8
Note, if parent materials have a composition including lead, this will make the joint porous.
A. There are a options that need consideration during this application and there are choices that need to be made depending on the size of the journal area and the shaft size. Fusion Welding may not be the best alternative as heat input on shafts can give material issues and cause distortion althogh welding of shafts can be succesfully achieved if carried out correctly.Manual Tig is not neccesserially the best option due to the welding speed and therefore heat input. A good bearing surface with TIG on steel can be achevied with our phosphor-bronze rod with 7% tin, Sifphosphor Bronze No8
- also available in MIG as SIFMIG 8
could also be used to weld this material which is also avaliable in MigSIFmig312
. On the Cast Iron our Super Silicon No9
rod provides a better weld in Oxy/Fuel gas as it is metallurgically much closer to the parent metal as it is a cast rod. The consideration here would be the size and involvement of the casting as pre and post heating would be required. Hilco Pure Nickel
could also be used to effect a repair .
A. Approx 875c - 895c
A. Please note that our Sif Silver Solder No38 contains Cadmium, and that we would not therefore recommend it for use in water-transport applications. We suggest that you switch to our Cadmium-Free Sif Silver Solder No39
38% Ag instead.
A. To improve finish use SIFALBRONZE No 32
. For best results use with a zirconiated electrode, with pure argon gas, on an AC set up.
A. No,the material is hard