KUNWU Stainless Steel TIG Welding Rods ER309L 1 16 x 36 2 Lb

ER309L. This classification is the same as ER309, except for the carbon content. Low carbon (0.03 percent maximum) in this filler metal reduces the possibility of intergranular carbide precipitation. This increases the resistance to intergranular corrosion without the use of stabilizers such as niobium or titanium. Strength of this low-carbon alloy, however, may not be as great at elevated temperatures as that of the niobium-stabilized alloys or ER309. Steel seal of AWS Classification "ER309L" , the letter is at the end of the rod, but only the size above (not include) 1/16".