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.