SelectAlloy 308L-AP CRYO close window
Print Sheet  


CLASSIFICATIONS: E308LT1-4 per AWS A5.22

SelectAlloy 308L-AP CRYO is a gas-shielded, flux cored, stainless steel electrode with a nominal weld metal composition of 18.5% chromium, 10% nickel and a maximum carbon content of 0.04%. It is designed for cryogenic applications where good weld metal toughness is required.

APPLICATIONS: SelectAlloy 308L-AP CRYO is utilized in the fabrication and repair of cryogenic components that require weld metal toughness at liquid nitrogen temperatures (-320 F).

DIAMETERS: .035", .045", 1/16"

SHIELDING GASES: Ar/20-25% CO2, 40-55 cfh

WELDING POSITIONS: All Positions

CHARACTERISTICS:

  • Provides superb, all position performance characteristics.
  • Achieves flat, well washed beads with minimal weaving.
  • Produces very low spatter and excellent slag peeling.

  • Typical Mechanical Properties
     
    75% Ar/
    25%
    CO2
    Ultimate Tensile Strength (psi) 86,000
    Yield Strength (psi) 59,000
    Percent Elongation 50
    CVN (ftlb f) @ -320°F 28
    Lateral Expansion @ -320°F (mils) 24

    Typical Deposit Composition:
    Wt% C Mn Si Ni Cr N
    75Ar/25CO2 .03 1.20 .80 10.50 18.40 .05

    Ferrite Number (WRC, 1992) - 3

    Typical Welding Parameters (CO2)**
    Diameter WFS (ipm) Amperage Voltage ESO (in.) Dep. Rate (lbs/hr)
    .035" 110 25 300 5/8-3/4" 3.3
    .035" 150 26 500 5/8-3/4" 5.4
    .035" 165 27 600 5/8-3/4" 6.3
    .035" 175 28 700 5/8-3/4" 7.7
               
    .045"
    250
    130
    24
    5/8-3/4"
    5.4
    .045"
    300
    160
    26
    5/8-3/4"
    6.3
    .045"
    425
    200
    28
    5/8-3/4"
    9.2
    .045"
    780
    270
    34
    5/8-3/4"
    16.2
    1/16"
    150
    170
    25
    3/4-1"
    5.4
    1/16"
    195
    215
    27
    3/4-1"
    7.0
    1/16"
    240
    250
    28
    3/4-1"
    8.6
    1/16"
    320
    305
    29
    3/4-1"
    11.5

    ** Optimum conditions are in boldface type. Reduce by 2 volts when using Ar+20-25% CO2.

    * Select-SAI all position electrodes do not contain bismuth.

    Select-SAI all position electrodes do not contain bismuth.