Home > Electrodes > 309LMo MIG & TIG Filler Welding Wire & Rod
Midland, UK-based Weston Stainless supplies high-performance stainless steel welding consumables. Its top-of-the-line product is the 309LMo TIG and MIG filler welding rod and wire, which finds use in areas where high corrosion resistance and high strength are essential. The alloy is of Grade 309LMo and can be supplied either in wire format for MIG or rod format for TIG. Produced from Molybdenum added austenitic stainless steel, it is highly resistant to crevice corrosion and pitting. Due to its smooth feeding and consistent arc performance, it is highly suitable for high-precision welding in high-stress industries.
309LMo TIG and MIG filler rod and wire are made of Chromium (22-24%), Nickel (12-14%), and Molybdenum (2-3%) along with a minimum of Carbon (<0.03%) to give superior corrosion resistance. It provides tensile strength of about 600 MPa, yield strength of about 400 MPa, and elongation of about 30%, thus providing excellent mechanical properties. It is physically characterized by a density of 7.9 g/cm³ and melting range of 1400-1450°C. The alloy is remarkable in thermal stability as well as resistance to oxidation, thus proving to be highly dependable in corrosive and high-temperature environments.
| Classification | AWS A5.9, 309LMo |
| 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 309LMo MIG & TIG Filler Metal Application & uses |
|
| C | Mn | Si | Cr | Ni | S | P | Mo | Cu |
| 0.03 max | 1.0-2.5 | 0.30-0.65 | 23-25 | 12-14 | 0.03 max | 0.03 max | 2-3 | 0.75 max |
| Tensile Strength (psi) | 86,000 psi (593 MPa) |
|---|---|
| Yield Strength (psi) | 57,000 psi (393 MPa) |
| Elongation (%) | 42% |
Contact us to get a quick quote for your requirement.
Excellent corrosion resistance and high-temperature strength, suitable for welding in harsh environments like chemical processing and power generation.
Superior resistance to pitting and crevice corrosion, ideal for high-temperature applications and joining dissimilar metals in challenging environments.
Robust corrosion resistance and strength, perfect for precision welding in harsh conditions, including chemical processing, petrochemical, and power generation industries.
309LMo TIG and MIG filler rod and wire are used extensively across industries like power generation, chemical processing, and marine engineering. They are specifically suitable for joining stainless steel with carbon or mild steel, cladding, and heat exchanger fabrication, storage tank fabrication, and pressure vessel fabrication. They are used in high-temperature and corrosive service conditions of refinery equipment, pulp and paper industries, and offshore structures. Their higher oxidation resistance and weldability make them ideal for furnace parts, boilers, and structural uses that demand durability and long-term performance
Weston Stainless offers 309LMo MIG and TIG filler wire and rod with certified test reports confirming chemical composition and mechanical properties according to international standards. The wire is sold on spools, while the rods are offered in cut lengths, both in moisture-resistant containers to avoid contamination. Sold in various diameters and packaging quantities, they are safely stored and shipped to preserve product integrity. Weston Stainless provides rapid domestic and global delivery with complete traceability, implementing rigorous quality control procedures to supply dependable, high-performance welding solutions.
©2024 Weston Stainless All Rights Reserved.
