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Guide to AWS A5.20: Carbon steel wires for FCAW
AWS
Classification
Tensile Strength
MPa
Yield Strength
min. MPa
Elongation
min. %
Impact Energy
Charpy-V
J/°C
E 7xT-1C, -1M 490 - 670 390 22 27 / –20
E 7xT-2C, -2M min Not specified Not specified Not specified
E 7xT-3 min Not specified Not specified Not specified
E 7xT-4 - 670 390 22 Not specified
E 7xT-5C, -5M - 670 390 22 27 / –30
E 7xT-6 - 670 390 22 27 / –30
E 7xT-7 - 670 390 22 Not specified
E 7xT-8 - 670 390 22 27 / –30
E 7xT-9C, -9M - 670 390 22 27 / –30
E 7xT-10 min Not specified Not specified Not specified
E 7xT-11 - 670 390 22 Not specified
E 7xT-12C, -12M - 620 390 22 27 / –30
E 6xT-13 min Not specified Not specified Not specified
E 7xT-13 min Not specified Not specified Not specified
E 7xT-14 min Not specified Not specified Not specified
E 6xT-G - 600 330 2 Not specified
E 7xT-G - 670 390 22 Not specified
E 6xT-GS min Not specified Not specified Not specified
E 7xT-GS min Not specified Not specified Not specified
E 7 1 T -1 M
Designates
an electrode.
Indicates primary welding positions.
0 =flat and horizontal
1 =all positio ns
Indicates a
cored wire.
Indicates usability and
performance capabilities.
Indicates min. tensile strength in 10 ksi units.
(10 ksi =10.000 psi ~69 Mpa)
Suffix Shieldin g gas Multiple-pass Single-pass Flux type
-1 X X X DC +pol
-2 XX DC +pol
-3 X DC +pol
-4 X X DC +pol
-5 X X X DC +/– pol
-6 X X DC +pol
-7 X X DC – pol
-8 X X DC – pol
-9 X X X DC +pol
-10 X DC – pol
-11 X X DC – pol
-12 X X X DC +pol
-13 X DC – pol
-14 X DC – pol
-G Not specified X X Not specified
-GS Not specifie Xd Not specified
Suffix Designation
M 75-80% Ar/Co
2
C CO
2
None Self-shield
490
490
490
490
490
490
490
490
490
490
490
430
490
490
430
490
430
490
2