OK Tubrod 15.22

OK Tubrod 15.22 is a basic gas‑shielded flux‑cored welding wire designed for welding 2.25% Cr, 1% Mo creep‑resisting low‑alloy steels with M21 shielding gas.

Key Features

• Gas‑shielded FCAW wire for low‑alloy steels
• High deposition rates and deep penetration
• Low diffusible hydrogen (< 5 ml/100 g) for H5‑class welds
• Compatible with M21 (EN ISO 14175) shielding gas

Specifications

• Classification: SFA/AWS A5.29 : E90T5‑B3
• Welding Current: DC‑
• Diffusible Hydrogen: < 5 ml/100 g
• Alloy Type: Creep‑resisting low alloy steel (2 % Cr, 1 % Mo)
• Shielding Gas: M21 (EN ISO 14175)
• Yield Strength: 605 MPa (PWHT 1 h at 675 °C)
• Tensile Strength: 685 MPa
• Elongation: 22 %
• Typical Weld Metal Composition (%): C 0.06, Mn 0.95, Si 0.52, Cr 2.32, Mo 0.99
• Deposition Data (1.2 mm wire): 120‑300 A, 16‑32 V, 4‑15 m/min, 1.7‑6.5 kg/h

Applications

• Structural steel construction
• Heavy equipment manufacturing
• Transportation and railcar fabrication
• Bridges and offshore rigs
• Petrochemical processing plants
• Shipbuilding and pressure vessels
• General fabrication