Select ER309LSi

Stainless Steel / Solid / Gas Shielded


Features

  • Increased silicon (Si) content compared to grades of similar alloy composition improves bead wetting and arc stability.
  • Low carbon (C), < 0.03 wt%, minimizes carbide precipitation (sensitization) which makes the weld metal more resistant to intergranular corrosion.
  • Unique manufacturing techniques provide enhanced arc stability and stable feeding.
  • 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)
  • 0.035 (0.9)
  • 0.040 (1.0)
  • 0.045 (1.2)
  • 0.052 (1.3)
  • 1/16 (1.6)

Welding Positions

Flat and Horizontal

Shielding Gas

  • Ar + 0.5-3% CO₂
  • Ar + 0.5-3% O₂
    Flow Rate: 40 – 50 CFM

Polarity

Direct Current Electrode Positive (DCEP)

Conformances

  • AWS A5.9
    • ER309LSi
    • ER309Si
  • ISO 14343-A
    • G 23 12 L Si
  • Approvals
    Agency Approval Shielding Gas Diameter(s)
    in (mm)
    Chrysler W406 N/A 0.035 (0.9) – 1/8 (3.2)
    CWB ER309LSi N/A 0.035 (0.9) – 1/16 (1.6)
    TYPICAL WIRE CHEMISTRY (WT%)
    Shielding Gas C Cr Cu Mn Mo Ni P S Si
    N/A 0.02 23.50 0.17 2.20 0.06 13.70 0.023 0.013 0.86

    Packaging (lbs (kg))

    33 (15) Spools, 60 (27.2) Coils, 500 (226.8) Round Drum, 800 (362.9) Hex Drum, 900 (408.2) Hex Drum

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