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Welding Carbon Steel To Duplex Stainless. Welding duplex and super duplex stainless steels is similar to welding austenitic stainless steels. Low carbon and low alloy steels may be welded to duplex steels using either a 309L 23Cr13Ni or a 309MoL filler metal.
Duplex stainless steel filler metals with increased nickel content relative to the base metal are most frequently used to weld duplex stainless steels to other duplex grades. These alloys solidify as ferrite which then partially transforms to austenite when the temperature decreases. These sample welds can also be sectioned and etched with ferrite and corrosion testing performed to verify weld quality.
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Epoxy Wire Mesh Sintered Wire Mesh Dutch wire mesh etc. The highest weld metal strength probably will be achieved. Duplex stainless steel filler metals with increased nickel content relative to the base metal are most frequently used to weld duplex stainless steels to other duplex grades. Stocks in huge qty.