MasterWeld 320LR Stainless Steel TIG Welding Rods
MasterWeld 320 LR is an austenitic stainless steel TIG filler wire with additions of Niobium to provide resistance to inter-granular corrosion.
The elements C, Si, P and S are specified at lower maximum levels and the Niobium and Manganese are controlled at narrow ranges - thereby reducing the weld metal hot cracking and fissuring (while maintaining the corrosion resistance) frequently encountered in fully austenitic stainless steel weld metals.
This grade may be used for: welding of base metals of similar composition for applications where resistance to severe corrosion involving a wide range of chemicals, including sulphuric and sulphurous acids in their salts, is required; welding of both castings and wrought alloys of similar composition without post-weld heat treatment.
Base materials that can be welded: UNS N08021, UNS N08022.
Also suitable to welding Alloy 20 (often referred to as Carpenter 20)