SelectAlloy 309LCb-AP

Stainless Steel / Flux Cored / Gas Shielded

Resources

Features

  • The addition of niobium (Nb) reduces the possibility of intergranular chromium carbide precipitation and thus susceptibility to intergranular corrosion.
  • 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.
  • This alloy is used to overlay carbon and low-alloy steels and produce a niobium stabilized first layer.

Standard Diameters

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

Welding Positions

All Positions

Shielding

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

Polarity

Direct Current Electrode Positive (DCEP)

Conformances

  • ASME SFA 5.22
    • E309LNbT1-1
    • E309LNbT1-4
  • AWS A5.22
    • E309LNbT1-1
    • E309LNbT1-4
    • TYPICAL WELD DEPOSIT CHEMISTRY (WT%)
    Shielding Gas C Cr Cu Mn Mo Nb + Ta Ni P S Si WRC-1992 Ferrite
    100% CO₂ 0.03 23.30 0.18 1.10 0.11 0.82 12.50 0.022 0.011 0.81 18
    75% Ar/25% CO₂ 0.03 23.50 0.19 1.12 0.11 0.84 12.60 0.022 0.012 0.87 18
    Bismuth is not intentionally added and is not known to be at levels greater than 0.002 wt%
    Recomended Welding Parameters
    Diameter
    in (mm)    		 Shielding Gas Position Wire Feed Speed
    in/min (m/min)    		 Amps Volts Contact Tip to Work Distance
    in (mm)
    0.035 (0.9) 75% Ar/25% CO₂ All Positions 325 (8.3) 110 23 1/2 (13)
    0.035 (0.9) 75% Ar/25% CO₂ All Positions 400 (10.2) 120 24.5 1/2 (13)
    0.035 (0.9) 75% Ar/25% CO₂ All Positions 470 (11.9) 130 26 1/2 (13)
    0.035 (0.9) 75% Ar/25% CO₂ Flat & Horizontal 565 (14.4) 145 27.5 1/2 – 5/8 (13 – 16)
    0.035 (0.9) 75% Ar/25% CO₂ Flat & Horizontal 660 (16.8) 160 29 1/2 – 5/8 (13 – 16)
    0.045 (1.2) 75% Ar/25% CO₂ All Positions 215 (5.5) 130 23 1/2 – 5/8 (13 – 16)
    0.045 (1.2) 75% Ar/25% CO₂ All Positions 260 (6.6) 145 24.5 1/2 – 5/8 (13 – 16)
    0.045 (1.2) 75% Ar/25% CO₂ All Positions 310 (7.9) 160 26 1/2 – 5/8 (13 – 16)
    0.045 (1.2) 75% Ar/25% CO₂ Flat & Horizontal 420 (10.7) 180 27.5 5/8 – 3/4 (16 – 19)
    0.045 (1.2) 75% Ar/25% CO₂ Flat & Horizontal 450 (11.4) 200 29 5/8 – 3/4 (16 – 19)
    1/16 (1.6) 75% Ar/25% CO₂ All Positions 135 (3.4) 160 23 5/8 – 3/4 (16 – 19)
    1/16 (1.6) 75% Ar/25% CO₂ All Positions 190 (4.8) 195 24.5 5/8 – 3/4 (16 – 19)
    1/16 (1.6) 75% Ar/25% CO₂ All Positions 225 (5.7) 210 26 5/8 – 3/4 (16 – 19)
    1/16 (1.6) 75% Ar/25% CO₂ Flat & Horizontal 255 (6.5) 225 27.5 3/4 – 1 (19 – 25)
    1/16 (1.6) 75% Ar/25% CO₂ Flat & Horizontal 290 (7.4) 245 29 3/4 – 1 (19 – 25)

    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.