Home > Electrodes > AWS Class E309LT1-1/T1-4 Flux Core Wire
Here’s a quick look at the **[E309LT1-1/T1-4 Flux-Cored Wire]()** for manufacturing and supply catalog purposes:
| 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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The E309LT1-1/T1-4 flux-cored welding wire falls under the American Welding Society (AWS) standard A5.22 (also known as ASME SFA-5.22). It’s designed for gas-shielded flux-cored arc welding (FCAW-G) of austenitic stainless steels, especially those with around 22% chromium and 12% nickel. It’s also great for joining stainless steels to carbon or low-alloy steels. This wire comes in both “T1-1” (shielded gas) and “T1-4” versions, making it suitable for all-position welding with either a mix of argon and CO2 or 100% CO2 shielding.
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.
* Welding stainless steels with a composition of around 22% chromium and 12% nickel (like type 309/309L) and for dissimilar joints where stainless is fused to mild or low-alloy steels. * Applications that demand excellent all-position capability, corrosion resistance, and weld integrity in tough environments. This includes petrochemical and chemical manufacturing equipment, shipbuilding, heavy fabrication, buffer layers, overlays, cladding, and







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