Al-Si alloy welding wire ER4043 

 JIS A4043 
 Description: 311 is a versatile large Al-Si alloy wire, weld metal has excellent resistance to thermal cracking performance, but also to guarantee the mechanical properties. But anodized occasions during the weld metal and base metal different colors of gold while welding aluminum and magnesium generated in the weld brittle Mg2Si, the joint ductility and corrosion resistance decreased. 
 Use: commonly used in addition to aluminum-magnesium alloy of gold artifacts and castings other than welding and oxygen - acetylene welding filler material when, in particular, is easy to produce thermal cracks on the heat treatment to strengthen aluminum alloys, can obtain good results. 



 HS321 Al-Mn alloy wire 
 Note: 311 is aluminum manganese alloy wire, weld metal has good corrosion resistance and high strength than pure aluminum, weldability and ductility is also very good. 
 Uses: Suitable for aluminum and other aluminum welding manganese and oxygen - acetylene welding time as a filler material. 



 HS331 aluminum-magnesium alloy wire 

 ER5556 aluminum-magnesium alloy wire 

 JIS A5556 
 Note: 311 is a small amount of titanium with the aluminum-magnesium alloy wire, weld metal has good corrosion resistance and thermal cracking performance, high strength. 
 Uses: It is aluminum-magnesium alloy welding and oxygen - the most basic of acetylene gas welding filler material, zinc magnesium alloy in aluminum welding and repair welding aluminum and magnesium castings have been used. 

 Aluminum and aluminum alloy welding wire for use: 
 Implementation of GB10858-89 standard 
 Aluminum and aluminum alloy welding wires are widely used in aluminum and aluminum welding and oxygen - acetylene welding made the filling material. 
 The choice of wire, the main base material according to the type of crack resistance of the joints, mechanical properties and corrosion resistance and other requirements into account. Sometimes, when a major conflict between a wire is selected to focus on solving the problem from the start. Take into account other aspects of requirements. Under normal circumstances, such as, welding aluminum and aluminum alloy components are used with the same or similar base metal grades of wire, so you can get a better corrosion resistance, but the tendency of large cracks in weld heat treatment to strengthen aluminum alloys, select the wire, crack resistance is mainly from the start address, then the composition of welding wire and base metal can be very different. A typical aluminum and aluminum alloy welding wire chosen as follows. 
 For example the base metal wire used weldability filler wire 
 TIG welding