Select 309LSi (GTAW)

Stainless Steel / TIG (GTAW) / Gas Shielded

Resources

Features

  • Low C, < 0.03 wt%, minimizes carbide precipitation (sensitization) which makes the weld metal more resistant to intergranular corrosion.
  • Increased Si content compared to grades of similar alloy composition improves bead wetting.
  • Actual chemistry certificate with calculated ferrite number (FN) available for each lot.
  • Embossed identification markings on both ends of the electrode.
  • Applications for this alloy type include welding dissimilar metal, such as type 304 SS to mild steel, cladding mild steel or type 304 base metals where corrosion requires to be enhanced, and welding of the stainless steel side of type 304 claddings.

Standard Diameters

in (mm)
  • 1/16 (1.6)
  • 3/32 (2.4)
  • 1/8 (3.2)
  • 5/32 (4.0)

Welding Positions

All Positions

Shielding

  • 100% Argon
    Flow Rate: 40 – 50 CFM

Polarity

Direct Current Electrode Negative (DCEN)

Conformances

  • ASME SFA 5.9
    • ER309LSi
  • AWS A5.9
    • ER309LSi
    • TYPICAL WIRE CHEMISTRY (WT%)
    Shielding Gas C Cr Cu Mn Mo Ni P S Si
    N/A 0.02 23.7 0.17 2.20 0.06 13.8 0.02 0.01 0.86

    Packaging (lbs (kg))

    10 (4.5) Tube, 40 (18.1) Master Carton

    *Some packaging options may not be available depending on diameter and product. Special package options may be available upon request.