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TIG Filler Metal Support

AWS classification pages for TIG / GTAW TIG rod. Browse by base metal family, then open the AWS page for use notes and Amazon searches by diameter.

TIG / GTAW 39 classification pages AWS spec family called out

Carbon steel

AWS A5.18 ER70S-2

Mild steel, carbon steel, and 4130 starting-point TIG work

 AWS A5.18 ER70S-6

Mild steel and carbon steel

Low-alloy steel

AWS A5.28 ER80S-D2

High-strength low-alloy steel and some 4130 work

 AWS A5.28 ER80S-B2

1.25Cr-0.5Mo chrome-moly steels

 AWS A5.28 ER90S-B3

2.25Cr-1Mo chrome-moly steels

 AWS A5.28 ER80S-Ni1

Weathering or low-temperature steels

Stainless steel

AWS A5.9 ER308L

304 and 304L stainless

 AWS A5.9 ER308LSi

304 and 304L stainless

 AWS A5.9 ER309L

Stainless-to-mild steel and 309 stainless

 AWS A5.9 ER310

310 and 310S stainless

 AWS A5.9 ER316L

316 and 316L stainless

 AWS A5.9 ER317L

317 and 317L stainless

 AWS A5.9 ER312

Dissimilar steels and hard-to-weld repairs

 AWS A5.9 ER347

321 and 347 stabilized stainless

 AWS A5.9 ER410

410 martensitic stainless

 AWS A5.9 ER430

430 ferritic stainless

 AWS A5.9 ER630

17-4 PH precipitation-hardening stainless

Duplex stainless steel

AWS A5.9 ER2209

2205 duplex stainless

Aluminum

AWS A5.10 ER4043

6061, 6063, and many 6xxx aluminum applications

 AWS A5.10 ER4047

Cast aluminum and silicon aluminum applications

 AWS A5.10 ER5356

5xxx aluminum and many 6xxx applications

 AWS A5.10 ER5183

5083 and 5086 aluminum

 AWS A5.10 ER5554

5454 aluminum

 AWS A5.10 ER5556

5xxx aluminum needing higher strength

Nickel alloy

AWS A5.14 ERNi-1

Nickel 200/201 and cast iron repair starting points

 AWS A5.14 ERNiCr-3

Nickel alloy 600 and high-temperature dissimilar joints

 AWS A5.14 ERNiCrMo-3

Nickel alloy 625 and corrosion-resistant overlays

 AWS A5.14 ERNiCu-7

Monel and nickel-copper alloys

 AWS A5.14 ERNiFeCr-2

Incoloy and nickel-iron-chromium alloys

Copper / bronze

AWS A5.7 ERCu

Deoxidized copper and copper repair

 AWS A5.7 ERCuSi-A

Silicon bronze brazing and copper alloys

 AWS A5.7 ERCuSn-A

Phosphor bronze and copper alloys

 AWS A5.7 ERCuAl-A2

Aluminum bronze and overlay work

 AWS A5.7 ERCuNi

Copper-nickel alloys

Titanium

AWS A5.16 ERTi-2

Commercially pure titanium Grade 2

 AWS A5.16 ERTi-5

Titanium Grade 5 / 6Al-4V

 AWS A5.16 ERTi-7

Titanium Grade 7 and corrosion-resistant CP titanium

 AWS A5.16 ERTi-9

Titanium Grade 9 / 3Al-2.5V

Hardfacing / cobalt

AWS A5.21 ERCoCr-A

Cobalt hardfacing overlays
Use note: AWS classifications are used here as practical lookup keys. Always verify the current AWS specification, manufacturer data sheet, WPS, code requirements, base metal grade, shielding gas or current type, diameter, and package size before purchasing or welding.