Welding Nozzles Lightweight / Type 5 Swaged Welding Nozzles Lightweight Welding Nozzles For use with Lightweight Shank & Mixer Order Code Plate Thickness LWSW1 No.1 0.9mm LWSW2 No.2 1.2mm LWSW3 No.3 2.0mm LWSW5 No.5 2.6mm LWSW7 No.7 3.2mm LWSW10 No.10 4.0mm LWSW13 No.13 5.0mm Type 5 Swaged Welding Nozzles Order Code Plate Thickness T5SW1 No.1 0.9mm T5SW2 No.2 1.2mm T5SW3 No.3 2.0mm T5SW5 No.5 2.6mm T5SW7 No.7 3.2mm T5SW10 No.10 4.0mm T5SW13 No.13 5.0mm T5SW18 No.18 6.5mm T5SW25 No.25 8.2mm Oxygen / acetylene gas welding is commonly used to permanently join mild steel. A mixture of oxygen and acetylene, burns as an intense / focussed flame, at approximately 3,500 degrees centigrade. When the flame comes in contact with steel, it melts the surface forming a molten pool, allowing welding to take place. Oxyacetylene can also be used for brazing, bronze welding, forging / shaping metal and cutting. This type of welding is suitable for the prefabrication of steel sheet, tubes and plates.