AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod

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Monib Stainless stands out as a trusted manufacturer and supplier of AWS Class ER309LSi MIG and TIG Filler Welding Wires and Rods, providing top-notch welding consumables across various industries. With a commitment to advanced manufacturing standards, the company guarantees consistent performance, exceptional weldability, and a superior finish in every product. Their ER309LSi filler wires are specifically designed for joining dissimilar metals and for overlay applications that demand enhanced corrosion and heat resistance. Known for their precision, durability, and timely delivery, Monib Stainless proudly supports the fabrication, construction, petrochemical, and engineering sectors with reliable welding solutions both nationally and internationally.

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AWS Class ER309LSi MIG and TIG filler rod welding wires are designed for welding dissimilar metals, such as stainless steel to carbon steel. These rods typically contain 24-26% chromium and 13-15% nickel. With a high silicon content (up to 0.65%) to improve the hydration and appearance of the weld pool Silicon enhancement helps reduce spatter and bead is firmly established. The ER309LSi provides a durable corrosion-resistant weld suitable for applications. In power generation, petrochemical industries, and architectural construction, and ensures high-quality, durable joints.

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 Monib 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.

AWS Class ER309LSi filler wires and rods are composed of chromium (around 23%), nickel (approximately 13%), low carbon content, and added silicon to enhance weld fluidity and bead appearance. This unique blend provides outstanding corrosion resistance, particularly against oxidation and high temperatures. On the mechanical side, ER309LSi boasts high tensile strength, good ductility, and impressive crack resistance, even when subjected to thermal cycling. Its low carbon content helps reduce carbide precipitation, ensuring better weld integrity. Additionally, the alloy offers stable arc performance, minimized spatter, and consistent weld penetration in both MIG and TIG applications.

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

AWS Class ER309LSi MIG and TIG Filler Welding Wires and Rods are commonly used for joining dissimilar metals, such as stainless steel to carbon steel or low-alloy steel. They excel in applications like buffer layers, clad steel welding, and overlays that require heat and corrosion resistance. Industries including petrochemical, refinery, power generation, fabrication, and automotive rely on these filler alloys for piping systems, pressure vessels, furnace components, and structural welds. ER309LSi is also a go-to choice for repair welding and maintenance tasks, ensuring durability and reliability in various applications.