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It is a manufacturer and supplier of high quality welding materials headed by Ragnar Welding Supplies, a company in Jakarta, Indonesia, which focuses on AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod. Relying on the traditions of producing high quality and reliable products, Ragnar offers solutions which are designed precisely to weld austenitic stainless steel to carbon steel and dissimilar metals to achieve a high corrosion resistance and weld integrity. Their ER309LSi wires and rods are more fluid, less porous, and offer homogeneous mechanical behavior and are better suited to hard industrial operations. Ragnar Welding Supplies has a committed and loyal customer base in the local and global market, as it focuses on innovation, quality control, and customer satisfaction.
| 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 |
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AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod are produced with the purpose of welding austenitic stainless steels to carbon steels and welding different metals. They are normally chemically composed of 23-25 percent of chromium, 12-15 percent nickel, 0.5-1 percent silicon and low carbon (less than 0.03 percent) to boost corrosion resistance and reduce carbide precipitation. ER309LSi has a tensile strength of 600-750 Mpa, yield strength of approximately 250 Mpa and elongation of 35-40 percent which is very tough and ductile. The excess silicon enhances the fluidity of the welds and minimizes porosity to make a smooth and good quality weld that can be used in the MIG and TIG welding machines.
Ragnar Welding Supplies Indonesia
| C | Cr | Ni | Mo | Mn | Si | P | S | Cu |
| 0.12 | 23.0-25.0 | 12.0-14.0 | 0.75 | 1.0-2.5 | 0.65-1.00 | 0.03 | 0.03 | 0.75 |
| Yield, kpsi: | 564 |
| Tensile Strength, kpsi: | 87 |
| Elongation%, min: | 41 |
At Ragnar Welding Supplies, we take pride in being one of Indonesia’s trusted suppliers of high-quality welding consumables. Our expertise lies in AWS Class ER309LSi MIG and TIG Filler Metal, engineered for precision, durability, and resistance to corrosion. With a strong commitment to quality and customer satisfaction, we provide welding solutions that support industries across construction, energy, shipbuilding, and manufacturing.
AWS Class ER309LSi MIG and TIG filler welding wire and rod are mainly used in joining austenitic stainless steel to carbon steel and also in welding dissimilar metals, which has good corrosion resistance and strength. They are commonly used in chemical processing equipment, pressure vessels, boilers, heat exchangers and structural steel fabrication. The silicon-enriched compound increases the fluidity of the welds and also minimizes porosity hence suitable in difficult joints and complex welds. ER309LSi can be used in both MIG and strip welding, which is durable and of high quality of the welds in both industries like petrochemical, marine, power generation and general manufacturing.
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