Alloy 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.
Features

Welding Filler Wire
Spray and Flame Metallizing Wire

Typical Applications

• Trade designation: ALMIGWELD and ALTIGWELD
• 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