Sandvik 22.12.HTR is covered electrode with rutile-acid coating and about 110% metal recovery. It is used for welding of austenitic stainless steels of UNS 30815 type (e.g. Sandvik 253 MA) and similar high-temperature steels, such as ASTM 309 and 309S.

Sandvik 22.12.HTR gives a chromium-nickel weld metal that is scaling resistant in air up to 1150 C (2102 F). Spray transfer gives a bead with a finely rippled surface. There is little spatter and very good slag removal.

Applications
Sandvik 22.12.HTR is intended primarily for welding the high temperature steels Sandvik 253MA® and Avesta 253MA® (253MA® is a trademark owned by Outokumpu Stainless), UNS S30815.

It is also suitable for welding other high temperature steels, such as AISI 309 and EN 1.4828.