SelectAlloy 309L-AP close window
Print Sheet  


CLASSIFICATIONS: E309LT1-1, E309LT1-4 per AWS A5.22.
(Also meets E309T1-1, E309T1-4 per AWS A5.22)

APPROVALS: ABS E309LT1-1, E309LT1-4

This all position electrode has a nominal weld metal composition of 24% chromium, 13% nickel and a maximum carbon content of 0.04%. SelectAlloy 309L-AP minimizes carbide precipitation and makes the weld metal more resistant to intergranular corrosion because of its low carbon content.

APPLICATIONS: SelectAlloy 309L-AP is utilized in welding refinery and chemical processing equipment as well as furnace and auto exhaust parts. It welds Type 309 stainless steel, joins carbon and low alloy steels and welds 304 clad sheets as well as the first layer cladding of carbon steel.

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

SHIELDING GASES: 100% CO2, 75-80% Ar/balance CO2, 35-50 cfh

WELDING POSITIONS: All positions

CHARACTERISTICS:

  • Superb all position performance.
  • Produces flat, well washed bead with minimal weaving.
  • Very low spatter.
  • Excellent slag peeling.
Typical Mechanical Properties (CO2)*
Ultimate Tensile Strength (psi) 85,100
Yield Strength (psi) 66,900
Percent Elongation 38

* Strength levels will be slightly higher w/Ar+20-25% CO2

Typical Deposit Composition:
Wt% C Mn Si Ni Cr N
CO2 .03 .95 .80 12.50 24.20 .05

Ferrite Number (WRC, 1992) - 18

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.