KUNWU Stainless Steel TIG Welding Filler Rods ER309L 3/16" x 40"

Occasionally used to weld Type 304 and similar base metals where severe corrosion conditions exist requiring higher alloy weld metal
Also used in dissimilar metal welds, welding of dissimilar steels or overlaying unalloyed structural steels
Low carbon content (0.03 percent maximum) increase weld metal resistance to intergranular corrosion
Easily use in welding of kitchen, food equipment, furnace, motorbike and exhaust system
Straight length of 36 inch packaged in a PVC tube (random color)

Description of ER309L

The nominal composition (wt.-%) of ER309 is 24 Cr, 13 Ni. Filler metals of this classification are commonly used for welding similar alloys in wrought or cast form. Occasionally, they are used to weld Type 304 and similar base metals where severe corrosion conditions exist requiring higher alloy weld metal. They are also used in dissimilar metal welds, such as joining Type 304 to carbon steel, welding the clad side of Type 304 clad steels, and applying stainless steel sheet linings to carbon steel shells.

This classification is the same as

Same except for the carbon content. Low carbon (0.03 percent maximum) in ER309L 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.

Standard Technical Specifications

AWS A5.9: ER309L
UNS Number: S30983
ISO 14343A: 23 12 L
ISO 14343B: SS 309L

Chemical Analysis of ER309L
Carbon (Maximum) 0.03
Nickel 12.0-14.0
Manganese 1.0-2.5
Phosphorus (Maxiumum) 0.03
Copper (Maximum) 0.75
Chromium 23.0-25.0
Molybdenum (Maximum) 0.75
Silicon 0.30-0.65
Sulfur (Maximum) 0.03