ER309LSI Spools Weldcote

ER309LSI is similar in composition to ER309L with a higher silicon content, which produces weld beads that are exceptionally smooth due to good wetting action. 309LSI is a great choice when cosmetic appearance is important.

AWS Specification AWS A5.9/A5.9M:2006 AWS Classification ER309LSI

Welding Current

DCEP

Typical Wire Chemistry C 0.03 Cr 23.0 - 25.0 Ni 12.0 - 14.0 Mo 0.75 Mn 1.0 - 2.5 Si 0.65 - 1.00 P 0.03 S 0.03 Cu 0.75

Typical Mechanical Properties (As Welded) Yield Strength, ksi 64 Tensile Strength, ksi 87 Elongation%, min 41

Welding Positions

F,V,OH,H

Available Diameters MIG with Operating Range in Amps .023" 35 - 70 .030" 50 - 100 .035" 100 - 150 .045" 150 - 200

Available Diameters TIG with Operating Range in Amps .035" 60 - 90 .045" 80 - 110 1/16" 90 - 130 3/32" 120 - 175 1/8" 150 - 220 5/32" 170 - 350