Stainless Steel ER-309LSi Filler Wires

Conrad Welding Supplies, a top-notch manufacturer and supplier located in Houston, USA, specializes in high-quality Stainless Steel ER-309LSi Filler Wires. These wires are specifically crafted for welding dissimilar metals and stainless steels, where you need outstanding corrosion resistance and beautiful weld aesthetics. With an enhanced silicon content, they improve wetting and bead appearance, making them perfect for top-tier MIG and TIG welding. Known for their smooth arc characteristics, low spatter, and impressive productivity, Conra’s ER-309LSi wires are a trusted choice across various industries. They consistently deliver high-performance filler metal solutions for structural, fabrication, and maintenance tasks, even in tough environments.

Stainless Steel ER-309LSi Filler Wires USA, Stainless Steel ER-309LSi Filler Wires Supplier in Texas, SS ER-309LSi Filler Wire Exporter in Los Angeles , SS ER-309LSi Filler Wire Stockist Houston , AWS A5.9 Stainless Steel ER-309LSi Manufacturer in Houston , UNS S30988 Filler Wires Exporter in Texas, Stainless Steel 1.4332 Filler Wire Stockist in California, ER-309LSi Stainless Steel Industrial Filler Wire Supplier in Texas.

Stainless Steel ER-309LSi Filler Wires Specification

Classification : AWS A5.9 ER-309LSi, A5.9M:2006

Soft Wire Diameter Range : 0.06mm – 2.30 mm

Hard Wire Diameter Range : 0.30mm – 3.00mm

Diameter : .035”, .045”, 1/16”, 3/32”, 1/8”, 5/32”

Length : 36″ (914mm) Customized

Materials : ER-309LSi Stainless Steel

Form : Wires, Filler Wires, Coil Wires, Welding Wires

What is Stainless Steel ER-309LSi Filler Wires?

The Stainless Steel ER-309LSi Filler Wires are made up of about 23% chromium, 13% nickel, and a boost of silicon (around 0.65–1.0%) to enhance weld pool fluidity and bead appearance. Their low carbon content helps reduce the risk of carbide precipitation and intergranular corrosion. These wires create an austenitic weld deposit with a tensile strength of around 570 MPa, offering excellent ductility and crack resistance. Designed for MIG and TIG processes with argon-based shielding gases, ER-309LSi wires guarantee stable arc performance, smooth weld finishes, and high-quality joints when welding stainless to carbon steels or other dissimilar metals.

If You Are Looking To Buy High Quality
Electrodes and Filler Wire

We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.

Stainless Steel ER-309LSi Filler Wires Chemical Composition

Grade	C	Cr	Cu	Fe	Mn	Mo	Ni	P	Si	S
SS ER-309LSi	0.02	24.0	0.09	Balance	1.70	0.20	13.0	0.02	0.85	–

Stainless Steel ER-309LSi Filler Wires Equivalent

STANDARD	AWS	UNS	DIN	Class	EN	BS
SS ER-309LSi	A5.9	S30988	1.4332	ER309LSi	23 12 LSi	309S93

Stainless Steel ER-309LSi Filler Wires Mechanical Properties

Tensile Strength (psi)	Yield Strength (psi)	Percent Elongation in 2”
87,000 psi (600 MPa)	56,000 psi (386 MPa)	36%

ER-309LSi Filler Wire Manufacturer in USA, ER-309LSi Filler Wire Exporter in United kingdom, SS ER-309LSi Filler Wires Supplier Houston , Size Chart of Austenitic Stainless Steel ER-309LSi Filler Wires, SS ER-309LSi Filler Wire Supplier in Los Angeles , ER-309LSi SS AWS A5.9 Filler Wire Supplier Houston , Manufacturer of ER-309LSi MIG Welding Wire in Texas, Exporter of ER-309LSi MIG Welding Wire in California.

Top Manufacturer and Supplier of Stainless Steel ER-309LSi Filler Wires in Houston , USA

Conrad Welding Supplies is a prominent manufacturer and supplier of top-tier Stainless Steel ER-309LSi Filler Wires in Houston , USA. We specialize in providing advanced welding solutions and offer a wide range of products, including coated electrodes, welding electrodes, flux core, MIG & TIG welding wires, SAW flux, and filler wires. Known for reliable delivery and outstanding customer service, we are committed to offering high-quality welding materials that ensure durability and optimal performance for various industrial applications. Our dedication to excellence has made us a trusted partner for all your welding needs.

Modern Equipments

Well Maintained

Expert Engineers

Efficient Factories

Stainless Steel ER-309LSi Welding Wire USA, SS ER-309LSi Filler Welding Texas, ER-309LSi Stainless Steel Welding Wire Supplier in Houston ,USA, AWS A5.9 SS ER-309LSi Welding Wire Los Angeles , ER-309LSi TIG Welding Wire Exporter in Houston , ER-309LSi Flux Cored Arc Welding Wire Price List in Texas, SS AWS CLASS ER-309LSi Filler Wires Exporter in California, Stainless Steel ER-309LSi Welding Wire Supplier in Texas.

Types of Stainless Steel ER-309LSi Filler Wires

Stainless Steel ER-309LSi MIG Filler Wire Size Chart in USA, SS ER-309LSi MIG Filler Wire Texas, Manufacturer of AWS A5.9 ER-309LSi MIG Filler Wire Houston , UNS S30988 MIG Filler Wire Exporter in Los Angeles , SS 1.4332 MIG Filler Wire Los Angeles , ER-309LSi SS MIG Filler Wire Manufacturer in Houston , Stockist of Stainless Steel ER-309LSi MIG Filler Wire in Texas, SS ER-309LSi MIG Filler Wire Stockist in California.

Stainless Steel ER-309LSi Filler Wires Uses

You’ll find Stainless Steel ER-309LSi Filler Wires widely used in sectors like petrochemical, power generation, shipbuilding, food processing, and construction. They’re perfect for welding stainless steel to carbon steel, creating buffer layers before hardfacing, and joining different stainless grades. The added silicon content enhances flow and bead appearance, making them ideal for visible or aesthetic welds. Common applications include pressure vessels, pipelines, storage tanks, and structural assemblies that face corrosive or high-temperature conditions. ER-309LSi excels in both fabrication and repair projects that demand strength and reliability.

Industry We Serve

We provide high-quality electrodes, filler wire, MIG and TIG welding wires to a wide range of industries, including oil and gas, food, marine, petrochemical, power generation, and aerospace.