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Avesta 347/MVNb is a Nb-stabilized Cr-Ni electrode for welding steels that are stabilized with titanium or niobium, such as 1.4541/ASTM 321. A stabilized weldment has improved high temperature properties, e.g. creep resistance, compared to low-carbon non-stabilized grades. Avesta 347/MVNb can also be used for the second layer (first layer 309 type) when cladding mild steel.
Applications
Corrosion resistance: 347/MVNb is primarily intended for high temperature service order applications that should be heat treated.
However the corrosion resistance corresponds to that of 308H
