Technical Knowledge Database

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Welcome to the Weldability Sif Technical Knowledge Database. We frequently answer technical questions while assisting customers with selecting and using our products in their applications. You can search these questions using the form below.

A selection of recent questions and their answers:

The replacement tig welding filler rod for Sifalumin No 36 is Sifalumin No 16.
The mig torch is directly wired, this will use mini torch liners, which are made from Teflon.
TWN742412 is a 0.6 - 0.8mm liner for the Mig 150.
TWN722077 is a 0.8 - 1.0mm liner for the Mig 180.
Without knowing the exact type/grade of bronze I can only advise our most accommodating alloys for welding of bronze with TIG or Oxy/Acetylene. If you wish to fusion weld bronze in oxy/acetylene, our Sifbronze No1 is the most widely-used alloy. Use Sifbronze Brazing Flux FO010050 for best results when welding bronze. Flame setting is important, as is welding speed. With TIG, Sifphosphor Bronze No8 is the alloy of choice for most bronzes. Flux is not required, but as with oxy acetylene cleanliness is paramount to success.
Rod to use would be Sifalumin No.27 if the joint is not structural with no strain on it.
PAT testing doesn't apply to industrial equipment. A welding rod quiver is not a consumer product and therefore is exempt from the requirement to be supplied with a plug. As there are a range of plug types that could be fitted to a quiver eg 3-pin or BS4343 etc, depending on what power supply it will be used with, it is customary to leave it to the distributor/end-user to determine and fit their required plug. This is the same convention as used with welding machines, lathes, presses and other industrial equipment.
Materials can be welded using Sifalumin No.15 and also Sifalumin No.16
For good colour match use Sifphosphor Bronze No 82
Disclaimer: This information is provided 'as is' and we accept no responsibility for the accuracy or validity of this information.