MIG Welding Wire

At Welding & Welder we stock one of the UK’s largest ranges of MIG welding wire, covering mild steel, stainless steel, aluminium, flux cored, brazing, copper-free and high strength alloy grades. All wires are sourced from trusted brands including Weld Star, Super 6, GeKa, Hyundai, Oerlikon and SIF.

Choosing the right MIG wire depends on the base metal you are welding, the required mechanical properties, and whether you’re working with solid or flux-cored wire. To make it easier, we’ve created a quick reference guide below to help match wire type to common applications.

Wire Type	Typical Applications	Key Benefits
Mild Steel MIG Wire (SG2, SG3, CF2, CF3)	General fabrication, boilers, automotive, shipbuilding, structural steel	Versatile, good mechanical strength, widely used for carbon steels
Stainless Steel MIG Wire (ER308LSi, ER309, ER316, Duplex)	Food industry, petrochemical, pipework, marine, corrosion-resistant fabrications	Corrosion resistance, smooth arc, high strength at sub-zero temps
Aluminium MIG Wire (4043, 5356, 5183, etc.)	Automotive, marine, aerospace, lightweight structures	Lightweight, high corrosion resistance, suited to aluminium alloys
Brazing MIG Wire (Sifmig 328, 985, CP2/CP4)	Automotive panels, galvanised sheet, HVAC, dissimilar metals	Low heat input, reduced distortion, good for thin sheet
Flux Cored MIG Wire – Steel	Heavy fabrication, structural steel, outdoor welding	High deposition rate, good penetration, works well in windy conditions
Flux Cored MIG Wire – Stainless	Petrochemical, marine, food & brewery, pipework	Excellent corrosion resistance, high productivity
Hardfacing MIG Wire	Earthmoving, mining, crushers, blades, wear parts	Resists abrasion, impact and friction, prolongs service life of components
High Strength Steel MIG Wire (ER80S, ER100S, ER120S, Ni-alloy)	Pressure vessels, cranes, bridges, offshore, high-yield steels	High impact strength, crack resistance, reliable at low temperatures
Copper Free MIG Wire	Automated welding, robotic lines, clean fabrication environments	Low fume, stable arc, environmentally friendly, consistent quality

Still unsure which wire is right for your project? Use our MIG Wire Selector Tool or contact our technical team for expert advice.

Whether you’re welding mild steel, stainless, aluminium or specialist alloys, we’ll help you choose the correct wire to achieve strong, clean and reliable welds.