Products
E2209T1-1
AWS:
AWS A5.22
Category:
Description
Chemical components
| C | Mn | Si | S | P | Cr | Ni | Mo | Cu | N | Nb |
| 0.04 | 0.5-2.0 | 1.0 | 0.03 | 0.04 | 21.0-24.0 | 7.5-10.0 | 2.5-4.0 | 0.5 | 0.08-0.20 | - |
Product Description
E2209T1-1 is a gas-shielded flux-cored wire (AWS A5.22) designed for welding duplex stainless steels containing approximately 22% chromium. It features 21-24% Cr, 7.5-10% Ni, 2.5-4% Mo, and nitrogen (0.08-0.20%) for an austenitic-ferritic dual-phase structure. Suitable for all-position welding with 100% CO₂ or 75% Ar/25% CO₂ shielding gas.
Features
▪ Dual-Phase Structure: Austenitic-ferritic microstructure (typically 25-40 FN) provides superior resistance to stress corrosion cracking and pitting corrosion.
▪ High Strength: Tensile strength ≥100,000 psi (690 MPa) with excellent impact toughness down to -40°C.
▪ Operational Performance: All-position capability with low spatter, smooth arc, and easy slag removal for high deposition rates.
Applications
▪ Offshore & Marine: Oil and gas pipelines, sour gas lines, and offshore platforms.
▪ Chemical Processing: Heat exchangers, pressure vessels, and chemical process equipment.
▪ Desalination: Seawater desalination plants and related equipment.
▪ Duplex Welding: UNS S31803 (2205), S32205, 2304, and similar duplex stainless steels.
Company Introduction
Hangzhou Lin'an Dayang Welding Materials Co., Ltd., a professional welding materials manufacturer founded in 1995, adheres to the core philosophy of "Innovative R&D, Precision Manufacturing, Meticulous Service".
With over 30 years of industry expertise, we have continuously increased investment in production upgrading and technological R&D, solidifying our reputation as a trusted supplier of industrial welding consumables globally.
Production Capacity & Product Strength
Equipped with multiple advanced automated production lines, we boast an annual output of 5,000 tons of premium welding products.
Our core portfolio covers nickel-based welding wires, stainless steel welding wires, flux-cored welding wires and high-performance specialty electrodes.
Backed by a professional R&D team with multiple patents, we also provide tailored OEM/ODM welding solutions to meet clients’ diverse application needs.
After-sales service process
FAQS
What is the primary use of E2209T1-1?
It is primarily used for welding 22% chromium duplex stainless steels (UNS S31803/S32205) in offshore, petrochemical, and desalination applications requiring high strength and corrosion resistance.
What shielding gas is recommended?
75% Ar/25% CO₂ is recommended for optimal arc characteristics; 100% CO₂ can also be used for deeper penetration at lower cost.
What is the difference between E2209T1-1 and E308LT-1?
E2209T1-1 is designed for duplex stainless steels with an austenitic-ferritic structure, offering higher strength (≥690 MPa) and superior corrosion resistance. E308LT-1 is for 304-type austenitic stainless steels with lower strength (≥520 MPa) and different corrosion characteristics.
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