SelectAlloy 309LMo-AP

Stainless Steel / Flux Cored / Gas Shielded


Features

  • The addition of Mo increases the pitting corrosion resistance in halide-containing environments.
  • Designed for welding in all positions where well washed beads can be achieved with minimal weaving in both 100% CO₂ or 75-80% Ar/balance CO₂ shielding gas
  • Smooth arc transfer produces minimal spatter.
  • Applications for this alloy type include joining of stainless steel to carbon and low-alloy steels for service below 600ºF, and for overlaying of carbon and low-alloy steels.
  • This alloy type can also be used to achieve a single-layer overlay with a chemical composition similar to that of a 316 or 317 stainless steel and is often used for the first layer of a multilayer overlay in conjunction with 316 or 317.

Standard Diameters

in (mm)
  • 0.035 (0.9)
  • 0.045 (1.2)
  • 1/16 (1.6)

Welding Positions

All Positions

Shielding Gas

  • 75-80% Ar + Balance CO₂
  • 100% CO₂
    Flow Rate: 40 – 50 CFM

Polarity

Direct Current Electrode Positive (DCEP)

Conformances

  • ASME SFA 5.22
    • E309LMoT1-1
    • E309LMoT1-4
  • AWS A5.22
    • E309LMoT1-1
    • E309LMoT1-4
  • Approvals
    Agency Approval Shielding Gas Diameter(s)
    in (mm)
    CWB E309LMoT1-1 C1 (100% CO₂) 0.035 (0.9) – 1/16 (1.6)
    CWB E309LMoT1-4 M21 (75% Ar/25% CO₂) 0.035 (0.9) – 1/16 (1.6)
    TYPICAL WELD DEPOSIT CHEMISTRY (WT%)
    Shielding Gas C Cr Cu Mn Mo Ni P S Si WRC-1992 Ferrite
    100% CO₂ 0.03 21.90 0.17 0.83 2.45 12.50 0.02 0.01 0.78 19
    75% Ar/25% CO₂ 0.03 22.10 0.16 0.88 2.44 12.60 0.02 0.01 0.87 20
    Bismuth is not intentionally added and is not known to be at levels greater than 0.002 wt%

    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.