SelectAlloy 308L-C Cryo

Stainless Steel / Metal Cored / Gas Shielded

Resources

Features

  • Low carbon (C), < 0.03 wt%, minimizes carbide precipitation (sensitization) which makes the weld metal more resistant to intergranular corrosion.
  • Metal cored benefits include the ability to successfully bridge gaps when part fit up is not as designed, higher travel speeds with subsequent lower heat inputs at equal amperages, and ability to join thin materials.
  • Applications for this alloy type include fabrication or repair of cryogenic components of similar composition that require weld metal toughness to maintained at temperatures of -320ºF (-196ºC).

Standard Diameters

in (mm)
  • 0.045 (1.2)

Welding Positions

Flat and Horizontal

Shielding

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

Polarity

Direct Current Electrode Positive (DCEP)

Conformances

  • ASME SFA 5.22
    • EC308
    • EC308L
  • AWS A5.22
    • EC308
    • EC308L
    • TYPICAL WELD DEPOSIT CHEMISTRY (WT%)
    Shielding Gas C Cr Cu Mn Mo Ni P S Si WRC-1992 Ferrite
    98% Ar/2% CO₂ 0.02 19.78 0.11 1.44 0.08 10.38 0.03 0.01 0.45 4
    98% Ar/2% O₂ 0.02 19.64 0.11 1.40 0.08 10.41 0.03 0.01 0.45 4
    Typical Mechanical Properties
    Shielding Gas Tensile Strength
    ksi (MPa)    		 Yield Strength
    ksi (MPa)    		 Elongation
    (%)    		 WeldCondition PWHTTemp Charpy V-Notch
    -320 °F ft⋅lb (-196 °C J)
    98%Ar / 2%CO2 89 (614) 59 (407) 32 As-Welded – 31.6
    98%Ar / 2%O2 89 (614) 60 (414) 37 As-Welded – 30.4
    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)
    0.045 (1.2) 98% Ar/2% CO₂ Flat & Horizontal 325 (8.3) 220 22 1/2 – 5/8 (13 – 16)
    0.045 (1.2) 98% Ar/2% CO₂ Flat & Horizontal 375 (9.5) 235 23 1/2 – 5/8 (13 – 16)
    0.045 (1.2) 98% Ar/2% CO₂ Flat & Horizontal 420 (10.7) 250 24 5/8 – 3/4 (16 – 19)
    0.045 (1.2) 98% Ar/2% CO₂ Flat & Horizontal 500 (12.7) 270 26 5/8 – 3/4 (16 – 19)

    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.