AlcoTec R 4043 ALTIGWELD Aluminium Rod

AWS A5.10 (ER & R 4043) TIG Welding Filler Rods.

1.6 x 1000mm – 4.54kg per tube.
2.4 x 1000mm – 4.54kg per tube.
3.2 x 1000mm – 4.54kg per tube.

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AlcoTec R 4043 is one of the oldest and most widely used welding and brazing alloys. Almigweld and Altigweld 4043 can be classified as a general purpose type filler alloy. The silicon additions result in improved fluidity (wetting action) to make the alloy a preferred choice by welders. The alloy is less sensitive to weld cracking and produces brighter, almost smut free welds.

Typical Applications

Welding Filler Wire Spray and Flame Metallizing Wire.

General Information

  • Trade designation: ALMIGWELD and ALTIGWELD 4043
  • Non-Heat treatable
  • Similar to AlSi5 (Germany), BS N21 (United Kingdom)
  • ISO designation: AlSi5
  • Principle alloying elements: Silicon
  • Applicable specifications: ANSI/AWS A5.10 (ER & R), AMS 4190

AlcoTec R 4043 is supplied in a box/tube in 4.54kg (10lbs) packaging.

Manufacturer’s product page.
AlcoTec Brand Page
Check out other AlcoTec products that we carry here.

Additional information


1.6 x 1000mm (404336062), 2.4 x 1000mm (404336094), 3.2 x 1000mm (404336125)