AWS Class E312 (-15/-16)
ASME SFA 5.4
WT 312-16 is ideal for welding dissimilar metals, especially when a base metal is stainless steel high in nickel. The deposit is a two-phase weld deposit with substantial amounts of ferrite in an austenitic matrix. Even with considerable dilution by austenite-forming elements, such as nickel, the microstructure remains two-phase and thus highly resistant to weld metal cracks and fissures. Applications should be limited to service temperature below 800°F to avoid formation of secondary brittle phases. This electrode is work-hardenable and hot-cracking resistant.
Tensile Strength: 95,000 psi min.
Elongation: 22% min.
Available in multiple sizes and diameters. Available in -15 and -16 coating.
Chemical Composition (Wt%):
Si Mn Cu Mo S Ni Cr P C
1.0 0.5-2.5 0.75 0.75 0.03 8.0-10.5 28.0-32.0 0.04 0.15