AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod

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Walid Stainless, located in Tunis, Tunisia, has built a solid reputation as a reliable manufacturer and supplier of high-quality stainless steel welding consumables. One of their standout products is the **AWS Class ER309LSi MIG and TIG filler wire and rod**, specifically crafted for welding austenitic stainless steels to each other or to carbon and low-alloy steels, especially when high corrosion resistance and crack-free welds are essential. This filler metal is known for its excellent arc stability, smooth metal transfer, and strong, defect-free weld deposits, making it a great choice for both manual and automated MIG and TIG welding processes. Walid Stainless adheres to rigorous quality control measures and international standards, catering to industries like chemical processing, power generation, construction, and marine.

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The AWS Class ER309LSi MIG and TIG filler metals are austenitic stainless steel consumables primarily made up of iron, chromium (22–24%), nickel (12–14%), and silicon (0.5–1%) to enhance fluidity and weld wetting. The carefully controlled low carbon content helps minimize carbide precipitation, which in turn reduces the risk of intergranular corrosion. In terms of mechanical properties, the weld metal boasts a tensile strength of about 75 ksi (515 MPa) and an elongation of around 35%, ensuring it remains tough, ductile, and resistant to cracking under stress.

AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod Specifications

Classification	AWS A5.9, ER309LSi
Form	MIG spools, TIG cut lengths, Reels and Coils
Type Of Welding	Inert Gas Welding
Current	MIG-DCEP / TIG-DCEN
Diameters	.023”, .030”, .035”, .045”, 1/16”, 3/32”, 1/8”
Standard TIG straight lengths are available	36” (914 mm) or 39” (1000 mm) lengths. Other lengths available upon request.
AWS ER309LSi MIG & TIG Filler Metal Application & uses	Hardware tools Metallurgy Machinery Construction Shipbuilding Petroleum Chemical plant Power sector Gas Industry

AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod Chemical Composition

C	Cr	Ni	Mo	Mn	Si	P	S	Cu
0.12	24.0-26.0	13.0-15.0	0.75	1.0-2.5	0.65-1.00	0.03	0.03	0.75

AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod Mechanical Properties

Yield, kpsi:	564
Tensile Strength, kpsi:	87
Elongation%, min:	41

We offer These Products as per DIN, ISO, JIS or ANSI Standard.

Why Choose AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod from Walid Stainless?

Largest Inventory

Customer Support

On Time Deliveries

ISO Certified

Types of AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod

Stainless Steel ER309LSi MIG Filler Wire

Stainless Steel ER309LSi MIG Filler Wire offers high-quality, silicon-enhanced welds for dissimilar metals, providing excellent corrosion resistance and bead appearance in applications like power generation and industrial fabrication.

Stainless Steel ER309LSi TIG Filler Wire

Stainless Steel ER309LSi TIG Filler Wire delivers superior weld quality and corrosion resistance for dissimilar metal joints, ideal for high-temperature and critical applications in industries such as petrochemical and structural fabrication.

Stainless Steel ER309LSi TIG Filler Rod

Stainless Steel ER309LSi TIG Filler Rod ensures strong, corrosion-resistant welds with enhanced fluidity for dissimilar metals, suitable for high-stress applications in power generation, chemical processing, and industrial sectors.

After the production of our AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod, our quality control team conducts thorough destructive and non-destructive testing using advanced equipment to ensure the superior performance and reliability of the product. Once the testing is complete we carefully package the filler wire and rod using appropriate materials to maintain their quality during shipping. We assure smooth and timely delivery to our customers. Guaranteeing on-time arrival without any delays. All necessary documentation, including certificates and test reports, are provided to the clients upon delivery.

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AWS Class ER309LSi MIG and TIG Filler Welding Wires and Rods Uses

These AWS Class ER309LSi MIG and TIG fillers are commonly used for welding stainless steels to carbon or low-alloy steels, as well as for joining different metals in corrosive settings. Typical applications include chemical and petrochemical equipment, pipelines, storage tanks, pressure vessels, heat exchangers, and structural components. Their outstanding corrosion resistance, smooth weld appearance, and dependable mechanical properties make them perfect for fabrication, maintenance, and repair tasks in challenging industrial and chemical environments.