What is 309 welding wire used for?
Use 309L (including ER309LSi) when joining mild steel or low alloy steel to stainless steels, for joining dissimilar stainless steels such as 409 to itself or to 304L stainless, as well as for joining 309 base metal.
What are the 2 types of welding wire?
There are two primary types of MIG welding wire – flux-core and solid MIG welding wire. Flux-core wire is a metal electrode that contains a “flux compound” inside the electrode.
Is thicker welding wire better?
Thicker wires can often feed at much slower speeds. If you increase your amperage too much, then the arc will become erratic and leave spatter along the weld. When you need to increase your power, then your best bet is to use a thicker wire.
What is SG2 MIG wire?
SG2 is a copper coated mild steel Mig wire for welding mild and medium tensile steels for impact toughness down to -20c. SG3 is a copper coated steel Mig wire with increased silicon and manganese for improved UTS.
What happens if you weld 316 with 308?
So you could weld 304 Stainless Steel with a 308 or 316 Rod/Wire, but you shouldn’t weld 316 with a 308 Rod/Wire. A lot of Mig and Tig Wire may be 308LSi & 316LSi, this denotes Low Carbon and added Silicon. Adding Silicon will make the molten weld metal slightly more fluid and so flow better.
Is .030 or .035 wire better?
To weld thicker metals, use 035 welding wires, while to weld thinner metals, use 030 welding wires. The thicker the rod, the more amp it will use and, thus, it will burn hotter and go deeper.
Is Mild Steel good for welding?
Mild steel is ideal for welding and metal fabrication. Low carbon mild steel is extremely versatile as a weldable metal — carbon percentages cap out at around 0.25-0.30% — and have few, if any, unnecessary alloying elements.
Can you weld SS to CS?
Austenitic stainless steels such as grade 304 stainless or grade 316 stainless can be welded to plain carbon steel using MIG and TIG welding. When welding stainless steel to a dissimilar metal such as plain carbon steel, weld processes such as MIG welding that use filler material are preferred.