GB SAI 4047
Conform to: AWS ER4047
EN ISO S AL 4047 (AlSi12)
Description:
ER4047 is Alsi eutectic alloy welding wire, its welding ability and performace is similar with ER4043. It could also be used as brazing filler metal.
Application:
It is used for welding of casting aluminum, 2000 series and AlMgSi alloy.
auto parts. autobody panel, heat exchanger/radiator, brazing of aluminum sheet, extruder and casting.
Chemical Composition of welding wire (%)
| Si | Fe | Cu | Mn | Mg | Zn | Be | Al |
| 11.0~13.0 | ≤0.80 | ≤0.80 | ≤0.15 | ≤0.10 | ≤0.20 | ≤0.0003 | rest |
Remark: each other element ≤0.03%, total other elements ≤0.15%
Mechanical properties of deposited metal
| Yield strength (N/mm²) | Tensile strength Rm (N/mm²) | Elongation ratio A(%) | |||||
| 125 | 175 | 14 | |||||
Shielding gas: 100%Ar, 75% Ar+25%He, 50%Ar+50%He
Electrical polarity: MIG DC+; TIG AC
