Special Purpose Grades

Midalloy stocks hard to source, but necessary welding grades for the fabrication of critical industrial components. Most prominent are our products for Cryogenic welding applications. When necessary, through our worldwide mill contacts, Midalloy can even provide special melts of filler material to meet a customer’s exact specifications for the fabrication of unique projects.

Product Name AWS /ASME SFA UNS No. Available for Welding Process Data Sheet
Midalloy 209 Welding Wire ER209 A5.9 S20980 GMAW, GTAW Data Sheet
Midalloy 218 Welding Wire ER218 A5.9 S21880 GMAW, GTAW Data Sheet
Midalloy 308L LF CRYO Welding Wire ER308L A5.9 S30888 GMAW, GTAW, SAW Data Sheet
Midalloy 316L LF CRYO Welding Wire ER316L A5.9 A95356 GMAW, GTAW, SAW Data Sheet
Midalloy 21/33 Bare Wire ER21/33 Non-AWS GTAW Data Sheet
Midalloy 25/35R Bare Wire ER25/35R Non-AWS GMAW, GTAW Data Sheet
Midalloy 35/45 NB Bare Wire ER35/45NB Non-AWS GMAW, GTAW Data Sheet
Product Name AWS /ASME SFA UNS No. Available for Welding Process Data Sheet
Mastercor 308L LF AP CRYO Flux-Cored Wire E308LT1-1/4 A5.22 W30835 FCAW Data Sheet
Mastercor 316L LF AP CRYO Flux-Cored Wire E316LT1-1/4 A5.22 W31635 FCAW Data Sheet