OK Tigrod 309L

OK Tigrod 309L is a corrosion‑resistant chromium‑nickel TIG welding rod designed for welding similar stainless steels (24% Cr, 13% Ni) and for use as a buffer layer on C‑Mn steels or dissimilar joints.

Key Features

• Austenitic alloy with approx. 10% ferrite for good weldability
• Excellent general corrosion resistance
• Suitable for buffer layers and dissimilar metal welding (dilution control required)
• Complies with EN ISO 14343‑A, SFA/AWS A5.9 standards

Specifications

• Classifications: EN ISO 14343‑A : W 23 12 L, SFA/AWS A5.9 : ER309L
• Approvals: CE EN 13479, CWB ER309L, UKCA EN 13479, VdTÜV 10021
• Alloy Type: Austenitic (≈10% ferrite) – 24% Cr, 13% Ni, low C
• Shielding Gas: I1 (EN ISO 14175)
• Tensile Strength (As Welded): 590 MPa (AWS), 585 MPa (ISO)
• Yield Strength (As Welded): 430 MPa (AWS), 480 MPa (ISO)
• Elongation: 32 % (AWS), 30 % (ISO)
• Charpy Impact (As Welded): 160 J @ 20 °C, 130 J @ –60 °C, 90 J @ –110 °C (AWS)

Applications

• Welding of 24 % Cr / 13 % Ni stainless steels
• Buffer layer welding on carbon‑manganese steels
• Dissimilar metal joining (with dilution control)
• General stainless‑steel fabrication