Home > Electrodes > AWS Class E309LT1-1/T1-4 Flux Core Wire
Weston Stainless, a Midland, UK-based company, is a top distributor of high-grade stainless steel products, with expertise in cutting-edge welding consumables. AWS Class E309LT1-1/T1-4 flux core wire is one of their major products, which falls under Grade 309L and is in tubular form. Constructed from austenitic stainless steel, this flux-cored wire is engineered for high weldability with stable smooth arc and low spatter. Due to its minimal carbon content, it has a high resistance against intergranular corrosion and cracking. It finds extensive application for welding two dissimilar metals together, stainless steel to carbon steel, and for overlay work requiring strength and longevity.
| Classification | AWS A5.22, E309LT1-1/T1-4 |
| 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 E309LT1-1/T1-4 Flux Core Wire Application & uses |
|
| 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 E309LT1-1/T1-4 flux cored wire includes Chromium (22-24%), Nickel (12-14%), and low Carbon (<0.04%), together with balanced quantities of Manganese, Silicon, and trace elements to further augment its performance. This wire provides a tensile strength of about 600 MPa and elongation of about 30%, with toughness and ductility. It has good oxidation resistance, a melting range of 1400-1450°C, and a density of around 7.9 g/cm³. The flux composition makes slag easy to remove, offering smooth weld beads and shortening post-weld cleaning time, making it very efficient for use in industries.
Available in sizes from 0.8mm to 1.6mm, offers excellent corrosion resistance. Ideal for welding dissimilar metals with superior arc stability and performance.
Ranging from 0.8mm to 1.6mm, provides reliable corrosion resistance. Suitable for welding dissimilar metals without additional shielding gases, ensuring robust weld quality.
Available in sizes from 0.8mm to 1.6mm, ensures high corrosion resistance. Ideal for welding dissimilar metals with consistent performance and high deposition rates.
AWS Class E309LT1-1/T1-4 flux cored wire has broad application in industries demanding corrosion-resistant and high-strength welds, including petrochemical, shipbuilding, and power generation. It is well suited to weld stainless steel to carbon or mild steel, overlay mild steel surface, and fabricate pressure vessels, heat exchangers, and pipelines. The wire finds broad application in refinery equipment, structural welding, and offshore platforms where thermal stability is of prime importance. Its resistance to scaling and oxidation qualifies it for use in high-temperature situations, such as furnace parts, boiler cladding, and other conditions of extreme environments.
Weston Stainless provides AWS Class E309LT1-1/T1-4 flux cored wire with certified test reports, which confirm its chemical makeup and mechanical strength as specified by international standards. The wire is tightly wound in spools that are moisture-resistant in order to avoid contamination and to have long shelf life. With available capacities in several diameters and spool sizes, it is neatly packaged to ensure safe handling and transport. Weston Stainless provides punctual domestic and international delivery with full traceability, ensuring rigorous quality control measures to deliver consistent, dependable, and high-performance welding solutions.







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