AWS 5.9 ER309LSi Welding Rod

Welder metals is one of the leading manufacturers, suppliers, exporters, stockiest of SS MIG/TIG welding consumables such as wires, rods and electrodes. AWS A5.9 /ASME SFA5.9 is the specification for welding consumables: wire, electrodes and rods for arc welding of stainless and heat-resisting steels. Class ER309LSi is the low carbon and high silicon version based on 309 grade. The low carbon offers excellent corrosion resistance higher silicon gives arc stability and exceptionally smooth bead appearance has been used for 309 series stainless steel and where Cr-Ni matching filler metals are required, and overlay welding as well as dissimilar joints of carbon steel to stainless steel.

ER309LSi Welding Wire/Rod Specifications

Weld Process MIG, TIG(GTAW), SAW
MIG coils wires 0.8mm, 1.0mm, 1.2mm, 1.5mm, 1.6mm, 2.0mm –15kg/piece
TIG straight rods 1.2mm, 1.6mm, 2.0mm, 2.5mm, 3.2mm, 4.0mm–5kg/piece
SAW spools 2.0mm, 2.4mm, 3.0mm, 4.0mm–25kg/piece
Surface treatment: Bright finish, Semi-bright finish

ER309LSi Chemical Composition

Grade C Si Mn S P Cr Ni Mo
309LSi 0.03 0.65-1.0 1.0-2.5 0.03 0.03 23.0-25.0 12.0-14.0 0.75

ER309LSi Mechanical Property

Tensile strength Yield strength Elongation In 2”
89,000 psi 60,500 psi 35%

The stainless steel rods ER309LSi supplied by us are in strict accordance with AWS A5.9 and other equivalent standards. We provide not only high-quality products but also have access to a vast stock of aluminum, titanium, and other alloys as per the specifications of American, European and Chinese specifications. We are here and our experienced technical team is waiting to help you with your inquiry, so contact us now!

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