Metals Commonly Welded with TIG:

Carbon and low alloy steels

Stainless steels like 304, 316,321. 17-4, 410

Nickel alloys like Inconel, Hastelloy, Waspalloy etc.

Aluminum alloys like, 3003, 5052, 6061

Magnesium alloys

Titanium

Cobalt alloys like Haynes 188, and L605

Refractory alloys like columbium, molybdenum, tungsten

Copper alloys like aluminum bronze , nibral bronze, pure copper

Items that are commonly welded with the TIG process are:

Carbon steel:

DOM tubing, 1018 sheet metal, Root passes in piping systems, Castings, Tool and die, Injection molds

Stainless steels:

Food service and kitchen equipment, Aerospace components, Surgical and pharmaceutical components, Automotive exhaust and other components, Nuclear piping and components,

Nickel alloys:

Aerospace components, Surgical and pharmaceutical components, Heat treat oven components, exhaust collectors

Aluminum:

Truck boxes, Castings, Aerospace ducting and other components, Wheels, Boats and boat props, Tanker trucks, tuna towers

Magnesium:

Aerospace gearboxes, some ducting, and other components, Old Volkswagen engine parts, Some Chainsaw housings,

Titanium:

Aerospace Fan blades, ducting, and other components Piping for ocean applications, Golf clubs, Helicopter compressor components, Race car parts,

Cobalt Alloys:

Aerospace hot section engine components,

Hard facing applications for earth moving and mining, Wear resistant surfaces for manufacturing,

Copper alloys:

Nibral bronze marine components and boat propellers, Aluminum bronze valve bodies, Bronze and brass castings, Pure copper