Home > Electrodes > AWS Class E309LT0-1/T0-4 Flux Core Wire
Midland, UK-based Weston Stainless is a reputable manufacturer of high-performance welding consumables made from superior stainless steel materials. AWS Class E309LT0-1/T0-4 flux core wire is among its main products, and it falls under Grade 309L with a tubular form. Constructed using austenitic stainless steel, this flux-cored wire includes a slag system that provides maximum arc stability along with very low spatter. Due to its low carbon levels, it provides better resistance against intergranular corrosion and cracking. It is suitable for use in joining dissimilar metals, stainless steel to mild steel, and high-end overlay applications demanding high strength and toughness.
| Classification | AWS A5.22, E309LT0-1/T0-4 |
| Form | Welding Flux Core Wire |
| Type Of Welding | Gas Shielded |
| Diameters | .045”, 1/16” |
| Shielding Gas | 100% CO2, 75-80% Ar/ balance CO2, 35-50 cfh |
| Welding Positions | All positions |
| AWS E309LT0-1/T0-4 Flux Core Wire Application & uses |
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| C | Cr | Ni | Mo | Mn | Si | P | S | Cu |
| 0.04 | 22.0-25.0 | 12.0-14.0 | 0.75 | 0.5-2.5 | 1.0 | 0.04 | 0.03 | 0.75 |
| Tensile Strength, kpsi: | 75 min |
| Yield Strength, kpsi: | *NS |
| Elongation %: | 30 min |
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AWS Class E309LT0-1/T0-4 flux core wire consists of Chromium (22-24%), Nickel (12-14%), and low Carbon (<0.04%), along with controlled levels of Manganese, Silicon, and trace elements. It offers good mechanical properties, such as tensile strength of approximately 600 MPa and elongation of about 30%, to provide ductility and toughness. It has superior thermal and oxidation resistance with a melting range of 1400-1450°C and density of approximately 7.9 g/cm³. Its flux content improves slag removal, ensuring smooth bead appearance and minimizing post-weld cleaning needs.
Available in sizes from 0.8mm to 1.6mm, offers excellent corrosion resistance. Ideal for welding dissimilar metals with enhanced arc stability and performance.
Ranging from 0.8mm to 1.6mm, provides reliable corrosion resistance. Perfect for welding dissimilar metals without the need for additional shielding gases.
Available in sizes from 0.8mm to 1.6mm, ensures superior corrosion resistance. Suitable for welding dissimilar metals with consistent performance and high deposition rates.
AWS Class E309LT0-1/T0-4 flux core wire is extensively applied in high-strength and corrosion-resistant welds demanding industries such as petrochemical, shipbuilding, and power generation. It is best suited for welding carbon steel to stainless steel, overlaying mild steel surfaces, and pressure vessel fabrication, piping systems, and heat exchangers. The wire is widely applied in structural welding, offshore platforms, and refinery equipment where high thermal and mechanical stability is essential. Its superior oxidation and scaling resistance makes it ideal for furnace parts, boiler cladding, and uses subjected to high temperatures and severe environments.
Weston Stainless provides AWS Class E309LT0-1/T0-4 flux core wire with certified test reports confirming chemical composition and mechanical properties according to international standards. The wire is packaged in sealed, moisture-proof spools to avoid contamination and maintain longevity. Coming in different diameters and spool sizes, it is properly packed for safe handling and transportation. Weston Stainless provides timely domestic and overseas delivery with complete traceability, adhering to strict quality control standards to ensure reliability, consistency, and high-performance welding solutions.







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