Class: E312TX-X

AWS: A5.22

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

Weld Process: Gas Metal Arc

AWS Chemical Composition Requirements
C = 0.15 max	Si = 1.0 max
Cr = 28.0 – 32.0	P = 0.04 max
Ni = 8.0-10.5	S = 0.03 max
Mo = 0.75 max	Cu = 0.75 max
Mn = 0.5 – 2.5

Available Sizes – Diameter X Spool Sizes
Available upon request contact us for more information

Application
These electrodes most often are used to weld dissimilar metal compositions of which one component is higher in nickel. This alloy gives a two phase weld deposit with substantial amounts of ferrite in an austenite matrix. 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 = 0.11	Mn = 1.2	Si = 0.60
Cr = 29.0	Ni = 9.0	P = 0.01
Mo = 0.28	S = 0.01

 

Deposited All Weld Metal Properties % (As Welded)
Tensile Strength	100,000 psi
Yield Strength	77,000 psi
Elongation	24%
Ferrite	50 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.