OK Autrod 2209

OK Autrod 2209 is a continuous solid corrosion‑resisting Duplex welding wire designed for austenitic‑ferritic stainless steel alloys (22% Cr, 5% Ni, 3% Mo). It offers high general corrosion resistance and excellent resistance to intergranular, pitting and stress corrosion in chloride and hydrogen sulphide environments.

Key Features

• Duplex alloy (22.5% Cr – 8% Ni – 3% Mo – low C) for superior corrosion resistance
• Certified to EN ISO 14343‑A, SFA/AWS A5.9 (ER2209)
• Available in 0.8 mm, 1.0 mm, 1.2 mm, 1.6 mm diameters
• Wide deposition range with adaptable amperage and voltage settings

Specifications

• classifications: EN ISO 14343‑A : G 22 9 3 N L, SFA/AWS A5.9 : ER2209
• approvals: CE EN 13479, DB 43.039.18, DNV‑GL Duplex, UKCA EN 13479, VdTÜV 13039*
• alloy_type: Austenitic‑ferritic (22.5 % Cr - 8 % Ni - 3 % Mo - Low C)
• shielding_gas: M12, M13 (EN ISO 14175)
• tensile_properties: Yield 590‑610 MPa, Tensile 785 MPa, Elongation 31‑32 %
• charpy_impact: 105 J @ ‑30 °C, 90 J @ ‑46 °C (AWS 98 Ar/2 O₂)
• typical_wire_composition_%: C 0.01, Mn 1.5, Si 0.5, S 0.002, P 0.015, Ni 8.5, Cr 22.7, Mo 3.2, Cu 0.1, N 0.17, PRE 35, FN WRC‑92 55
• deposition_data (example for 1.0 mm): 80‑190 A, 16‑24 V, 2.9‑8.4 m/min, 1.1‑3.1 kg/h

Applications

• Petrochemical and offshore pipelines
• Chemical processing equipment
• Power generation components
• Marine and seawater handling systems