What is the EN AW 4000 Series?
The EN AW 4000 series is a silicon-alloyed aluminium family providing lower melting temperature, good fluidity and improved wear behaviour. It is common in welding and brazing applications.
- Lower melting temperature.
- Used for welding wire and brazing.
- Some grades offer high wear resistance.
- Preferred for pistons and thin-wall welding.
| EN AW Code | Typical Application Area |
|---|---|
| EN AW 4032 | High wear resistance and low thermal expansion; piston production. |
| EN AW 4043A | General-purpose welding wire for TIG and MIG welding. |
| EN AW 4047A | Contains around 12% Si; low-temperature brazing and thin-wall welding. |
Why Proper Alloy Selection Matters
Choosing the correct aluminium alloy directly affects strength, corrosion resistance, weldability, anodising quality, machinability and cost efficiency. Different EN AW designations in the same product form may significantly change product lifetime and service reliability.
Technical Evaluation with Kurtoglu Aluminium
Kurtoglu Aluminium supports material selection according to project requirements, including alloy, temper, surface condition and dimensions. Alternative material options can be evaluated according to operating conditions.