Alloy 90S-B3 description:
Key Features:
Designed for welding 2-1/4 Cr / 1 Mo steels, which are used for high temperature applications.
A preheat and interpass temperature of not less than 350°F should be maintained during welding.
Typical applications include power generation, pressure vessels, petrochemical, and process piping.
Conformances:
AWS/ASME Spec 5.28
AWS Class ER90S-B3
UNS K30960