E309LMOT-1

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Class: E309LMOTX-X
AWS: A5.22

Conforms to Certification: AWS A5.22 | ASME SFA A5.22

Weld Process: Gas Metal Arc

AWS Chemical Composition Requirements
C = 0.04 max S = 0.03 max
Mn = 0.5 – 2.5 Cr = 21.0 – 25.0
Si = 1.0 max Ni = 12.0 -16.0
P = 0.04 max Mo = 2.0 – 3.0
Cu = 0.75 max

Available Sizes – Diameter X Spool Sizes
.035 x 25#
.045 x 25#
1/16 x 25#

Application
The composition of this weld metal is the same as E309MOTX-X except for lower carbon content. Use these electrodes to join stainless steel to carbon and low alloy steels for services below 600º F. Use for overlay. Ferrite is 20FN deposited. Following the chemical composition designation comes the letter “T” which signifies that the product is a flux cored electrode or rod. Following the “T” is a “1” or “0” indicating the recommended position of welding. The “1” or “0” following the “T” designates the following: “0” – designed to weld in the flat or horizontal position, “1” – designed to weld in all position. Following the position indicator and a dash, are the numerals “1”, “3”, “4”, “5”, or the letter “G”. The numerals “1”, “4”, and “5” identify the shielding gas required for classification of the electrode. The number “3” signifies that an external shielding gas is not employed. The letter “G” signifies that the shielding medium, chemical composition and mechanical properties are not specified.

Deposited Chemical Composition % (Typical)
C = 0.03 Mn = 1.20 Si = 0.60
Cr = 23.0 Ni = 12.5 Mo = 2.3
P = 0.015 S = 0.01
Deposited All Weld Metal Properties % (As Welded)
Tensile Strength 90,000 psi
Yield Strength 60,000 psi
Elongation 34%
Ferrite 20 FN

Deposited Charpy-V-Notch Impact Properties %
Not applicable

Optimum Parameters

Operating Range
Diameter Position Wire Feed Speed Amps Volts Amps Volts
0.035 Flat 365″ / minute 130 – 140 24 – 25 100 – 170 21 – 26
0.035 Horizontal 365″ / minute 130 – 140 24 – 25 100 – 170 21 – 26
0.035 Vertical – Up 310″ / minute 110 – 120 22 – 23 110 – 120 21 – 23
0.035 Overhead 320″ / minute 120 – 130 23 – 24 120 – 130 22 – 24
0.045 Flat 450″ / minute 180 – 200 25 – 27 135 – 250 24 – 32
0.045 Horizontal 450″ / minute 180 – 200 25 – 27 135 – 250 24 – 32
0.045 Vertical – Up 325″ / minute 150 – 170 24 – 26 135 – 200 24 – 26
0.045 Overhead 425″ / minute 175 – 195 25 – 27 155 – 200 25 – 28
1/16 Flat 264″ / minute 220 – 240 25 – 27 170 – 300 24 – 31
1/16 Horizontal 235″ / minute 200 – 220 25 – 27 170 – 270 24 – 29
1/16 Vertical – Up 220″ / minute 190 – 210 25 – 26 170 – 230 24 – 27
1/16 Overhead 235″ / minute 200 – 220 25 – 26 170 – 270 24 – 29

For best results, set the wire feed speed and adjust the voltage for smoothest operation. Electrode extension range is from 1/2” to 1,” with an optimum range of 5/8” to 3/4.” Weld using reverse polarity DC(+).

Shielding Gas
75% argon / 25% CO2 (or nearest equivalent) shielding gas; however, straight CO2 may also be used. The 75/25 mixture will produce a smoother arc with virtually no spatter and slightly higher yield and tensile strengths than CO 2. The mechanical properties and deposit analyses will meet AWS A5.22 specifications with either gas.