Guide to AWS A5.5: Low alloy steel electrodes for SMAW
Covered electrode
for manual metal-arc
welding.
E
AWS
Welding
Classification Position
Designates welding
position, coating type
and current type.
80
16
-D3
E xx10
E xx11
Exx13
E xx15
Exx16
E xx18
E xx20
E xx27
1
1
1
1
1
1
2
2
Type of coating
Cellulosic
Cellulosic
Rutile
Basic
Basic
Basic, iron powder
Acid
Acid, high recovery
Type of Current
AC
DC
–
x
x
–
x
x
x
x
+pol
+pol
+/– pol
+pol
+pol
+pol
c) +/– pol
c) +/– pol
c) Kälsvets liggande endast -pol
Code
1
2
Designates min. tensile strength in ksi.
(1 ksi =1000 psi ~6.9 MPa)
Designates chemical
composition of weld metal.
AWS
Classification
E 70xx-x
E 70xx-BL2
E 70xx-P1
E 70xx-W1
E 80xx-x
E 80xx-C3
E 90xx-x
E 90xx-M
E 100xx-x
E 100xx-M
E 110xx-x
E 110xx-M
E 120xx-x
E 120xx-M
E 120xx-M1
Suffix
-A1
-B1
-B2
-B2L*
-B3
-B3L*
-B4L*
-B5
-C1
-C1L*
-C2
-C2L*
-C3
-NM
-D1
-D2
-D3
-G/-M/-W
Tensile Strength
min. MPa
Yield Strength
min. Mpa
490
520
490
490
550
550
620
620
690
690
760
760
830
830
830
390
390
415
415
460
470-550
530
540-620
600
610-690
670
680-760
740
745-830
745-830
Alloying system
Nominal values, wt%
C / Mo
~0.1/ 0.5
Cr / Mo
~0.5/ 0.5
Cr / Mo
~1.3/ 0.5
Cr / Mo
~1.3/ 0.5
Cr / Mo
~2.3/ 1.0
Cr / Mo
~2.3/ 1.0
Cr / Mo
~2.0/ 0.5
Cr / Mo / V
~0.5 / 1.0 / 0.05
Ni
~2.5
Ni
~2.5
Ni
~3.5
Ni
~3.5
Ni / Cr / Mo / V
~1.0 / 0.1 / 0.3 / 0.05
Ni / Mo
~1.0/ 0.5
Mn / Mo
~1.5/ 0.3
Mn / Mo
~1.8/ 0.3
Mn / Mo
~1.5/ 0.5
All other low alloy steel electrodes
Welding position
All positions except vertical-down
Flat and H-V fillets
AWS
Classification
°C
E 7010-P1
E 8010-P1
E 8018-P2
E 8045-P2
E 9010-P1
E 9018-P2
E 9045-P2
E 10045-P2
27
27
27
27
27
27
27
27
–30
–30
–30
–30
–30
–30
–30
–30
E 8018-NM1
E 8016-C3
E 8018-C3
27
27
27
–40
–40
–40
E 7018-C3L
E 8016-C4/D3
E 8018-C4/D3
E 9015-D1
E 9018-D1/D3
E 10015-D2
E 10016-D2
E 10018-D2
E 9018-M
E 10018-M
E 11018-M
E 12018-M
27
27
27
27
27
27
27
27
27
27
27
27
–50
–50
–50
–50
–50
–50
–50
–50
–50
–50
–50
–50
E 12018-M1
E 7018-W1
E 8018-W2
E 8016-C1
E 8018-C1
67
27
27
27
27
–20
–20
–20
–60
–60
E 7015-C1L
E 7016-C1L
E 7018-C1L
E 8016-C2
E 8018-C2
27
27
27
27
27
–75
–75
–75
–75
–75
E 7015-C2L
E 7016-C2L
E 7018-C2L
27
27
27
–100
–100
–100
E 9015-C5L
EXXXX-A1/BX/BXL
E(X)X XX-G
* C max. 0.05%
270
Impact Energy
min. J
27
Not spec.
Not spec.
–115
Not spec.
Not spec.