What sets Duplex and Super Duplex Coated Electrodes apart is their unique dual-phase microstructure, which combines austenite and ferrite to achieve a great balance of mechanical strength and corrosion resistance. Typically, Duplex electrodes contain about 22% chromium, 5–6% nickel, and 3% molybdenum, while Super Duplex electrodes boast a higher alloy content (up to 25% Cr, 7% Ni, 4% Mo, and added nitrogen) for even better performance. Common classifications include E2209-15 for Duplex and E2594-15 for Super Duplex. These electrodes deliver impressive tensile strengths ranging from 95 to 125 ksi and show remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in chloride-rich environments.
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Duplex and Super Duplex Steel Coated Electrodes have a perfectly balanced composition of chromium (20-25%), nickel (4-7%), molybdenum (2-4%), and nitrogen (0.1-0.3%). The tensile strength of such electrodes ranges between 650 to 900 MPa, while yield strength falls in the range of 450 to 650 MPa with an elongation between 25 and 35%. The dual-phase microstructure provides toughness and impact resistance, as well as stress corrosion cracking resistance suitable for marine and oil & gas and chemical applications.
| Classification | Duplex and Super Duplex Steel Coated Electrodes |
| Form | spools, Reels and Coils |
| Type Of Welding | Inert Gas Welding |
| Current | DCEP / DCEN |
| Size | 0.76 mm ∞ *4.70xmm |
| Duplex and Super Duplex Steel Coated Electrodes Application & uses |
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Conrad Welding Supplies, based in Houston , USA, is a trusted manufacturer and distributor of high-quality welding filler metals, including Duplex and Super Duplex Steel Coated Electrodes. Our premium electrodes are designed for applications requiring exceptional strength, corrosion resistance, and superior weldability. Ideal for use in marine, oil & gas, chemical, and offshore industries, these electrodes ensure durability and performance in demanding environments. With a commitment to precision, timely delivery, and outstanding customer service, Conrad Welding Supplies provides reliable and high-performance welding solutions with Duplex and Super Duplex Steel Coated Electrodes.
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You’ll find Duplex and Super Duplex Steel Coated Electrodes widely used for welding pressure vessels, pipelines, tanks, structural components, and offshore platforms that face seawater or harsh chemical conditions. They’re particularly well-suited for industries like oil & gas exploration, desalination, pulp & paper, and marine construction. Their excellent toughness, even in low temperatures, along with superior metallurgical stability, makes them ideal for demanding environments. With high productivity, low hydrogen content, and outstanding weld metal integrity, these electrodes ensure reliable performance for both new construction and in-service repairs.
We provide high-quality electrodes, filler wire, MIG and TIG welding wires to a wide range of industries, including oil and gas, food, marine, petrochemical, power generation, and aerospace.
Conrad Welding Supplies is a leading manufacturer, supplier and exporter of high-quality Coated Electrodes, Flux Core, MIG & TIG wires, SAW & Flux, Welding Wires, and Filler Wires, catering to various industries in Houston , USA
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