Home > Electrodes > AWS Class E309/309H-16 Electrodes
Lecong Stainless is a reputable manufacturer and supplier based in Da Nang, Vietnam, specializing in high-performance AWS Class E309/309H-16 Electrodes that deliver exceptional welding quality and durability. These electrodes are particularly effective for joining dissimilar steels, especially when connecting carbon steels to stainless steels, and they excel in overlay applications that demand outstanding corrosion and oxidation resistance. With features like smooth arc stability, minimal spatter, and easy slag removal, Lecong Stainless guarantees consistency and reliability, making these electrodes a go-to choice for the chemical, petrochemical, power generation, and marine industries, where durable welded joints are crucial.
The AWS Class E309/309H-16 Electrodes are made up of 23–25% chromium and 12–14% nickel, with either a low carbon (309L) or higher carbon (309H) content tailored to specific service needs. This unique composition offers impressive mechanical properties, boasting a tensile strength of around 550 MPa, a yield strength of 350 MPa, and an elongation of 35% or more. The elevated levels of chromium and nickel provide robust resistance to scaling, oxidation, and corrosion at high temperatures, all while ensuring ductility and toughness across a broad temperature spectrum.
| Classification | AWS A5.4, E309/309H-16 |
| Form | Welding Electrode, Welding Rods |
| Type Of Current | AC-DCEP (Direct Current Electrode Positive) |
| Welding Position | F, V, OH, H |
| Size | 2.0 mm, 2.50 mm, 3.15 mm, 4.00 mm, 5.0 mm |
| AC/DC+ | AC or DC (+) |
| JIS Specification | BS 2926 19.9 A R |
| Other Specification | DIN 8556 E19 9 R 23 A |
| AWS E309/309H-16 Coated Electrodes 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 | 1.00 | 0.04 | 0.03 | 0.75 |
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Designed for welding stainless steel to mild steel or other stainless steel types, these electrodes offer high corrosion resistance. Typically available in sizes like 3/32″ to 1/8″ diameter, they provide excellent weld quality with minimal spatter.
These electrodes are ideal for general-purpose welding, offering good corrosion resistance for stainless steel applications. Sizes usually range from 1/8″ to 3/16″ in diameter, and they ensure smooth welding with light flux coatings for improved visibility and control.
Suitable for heavy-duty welding tasks, these electrodes enhance corrosion resistance and are used for thick stainless steel sections. Common sizes include 5/32″ to 1/4″ diameter, featuring a thicker coating for robust and stable arc performance.
We ensure full transparency of our AWS Class E309/309H-16 Electrodes with high-quality assurance. All orders are accompanied by all the necessary documents, such as a commercial invoice, packing list, fumigation certificate, heat treatment chart, and NABL-approved lab test report. We provide Material Test Certificate as per EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and Third-Party Inspection Certificate. Our comprehensive documentation is organized for maximum client satisfaction.
These electrodes are commonly used for welding stainless steels like 304 and 309, as well as for dissimilar combinations such as stainless steel to mild steel or low alloy steels. They are perfect for fabricating chemical processing equipment, furnace components, boilers, heat exchangers, and pressure vessels. In the marine and offshore sectors, they deliver dependable welds that can endure harsh corrosive conditions. Their high strength, stability, and resistance to cracking make them a top choice for critical welding tasks that require durability and a long service life.
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