Brass Welding Rods Wires Sticks，500mm Length Wire Electrode Soldering Rod for Brazing Soldering Repair Tools (Color : 10PCS-4.0MM)

Product specifications: Name:Brass rodMelting point: about 890 degreesDiameter: 1.6mm /2.0mm /2.5mm /3.0mm /4.0mm/5.0mm.Package included:5/10/20 x Brass Welding RodPrecautions:1. The welding groove and welding wire surface must be carefully cleaned before welding.2. Generally preheat to 400 ~ 500 degrees before welding. When welding, copper gas welding solvent must be used as auxiliary solvent.3. Welding flame should use neutral flame or slightly oxidizing flame, appropriately reduce the temperature during welding, increase the welding speed, and minimize the residence time of the molten pool at high temperature to reduce the evaporation and oxidation of zinc.4.This can't make a keychain, be careful! Thank you!Note:1.Please allow a bit error due to manual measurement.Pls make sure you do not mind before you bid.2.The color may have different as the difference display,pls understand.

• Welding between copper and copper: use phosphor-copper electrode, not copper-aluminum electrode, and brass electrode.
• Between the copper and the aluminum welding: welding with copper and aluminum, brass rod can not be used, can not be used phosphor bronze electrode.
• Between aluminum and aluminum welding: welding copper and aluminum can be used, not brass rod, phosphor bronze electrode can not be used
• Between the copper and iron welding: welding with the use of brass and copper, solder powder, phosphor bronze electrode can not be used.
• S221 is a special brass welding wire containing a small amount of tin and silicon. Tin can improve the fluidity, strength and corrosion resistance of the welding wire, while silicon can effectively control the evaporation of zinc, eliminate porosity and obtain satisfactory mechanical properties