MW-4145 was originally developed as a brazing alloy due to its low melting point and high fluidity. This alloy is scarcely susceptible to cracking when used to weld alloys of series 2XXX or aluminium-copper-silicon alloys. It can be used for applications were high temperatures are required. This alloy is usually preferred to the MW-2319 alloy as it flows better in the weld pool. The weld bead has a brighter and a more “smut free” appearance with respect to other alloys. It has an ultimate tensile strength lower than alloy MW-2319. It is not recommended to use this alloy for welding aluminium alloys with a high magnesium content.
Chemical Analysis
- Si 9,3 -10,7
- Fe <0,80
- Cu <3,3 - 4,7
- Mn <0,15
- Mg <0,15
- Zn <0,20
- Be <0,0003
- Others <0,05
- Others, total <0,15
Classification
- EN ISO 18273 : S Al4145
- Material No : 3.2585
- AWS A 5-10 : ER4145
Physical properties of pure weld metal (Approx. values)
- Melting point : 521-585°C
- Density : 27,40 gr/cm3
- Anodization colour : Grey
Dimensions available Ø
- GMAW: 1.0mm, 1.2mm, 1.6mm
- GTAW. 1.6mm, 2.0mm, 2.4mm, 3.2mm
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MW-4145 AlSi10Cu4 Aluminium Welding Wire
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