AWS A5.1-1991

AWS A5.1-1991

 E                   

70

18

16

M

-1

HZ

R

Abbreviation: E= Electrode (cored wire)

Tensile strength ex.: 70 indicated 70.000 psi 480 N/mm².

Indicates the welding position, coating type and current type

Indicates the welding position, coating type and current type

Information about the electrode according to E7018M. (Military specifications.) Much more toughness, low hydrogen and moisture pickup. Borders for the hydrogen content of the welding metal are required

Indicate that the electrode  (E7016, E7018, E7024) some requirements have for a better carve toughness and stretch (E7024).

Indicates that the electrode the requirements approaches for a hydrogen test (option for Basic electrodes if they are re-baken with a average value not higher then “Z” ml from H2/100 g down melted welding material when “z”= 4,8 or 16.

Indicates that the Electrode de requirements approaches for a moisture pick-up test. (option for all basic electrodes except the E7018M when the test is required.)

E   70   18   M

E   70   16   -1  HZ  R

AWS

Tensile strength

Yield strength

Elongation %

Impact strength

Welding 

Coating Type

Current Type

classification

ksi

N/mm²

ksi

N/mm²

 

Charpy V J/°C

Position

 

AC

DC

E 6010

60

414

48

331

22

27 / -29

1

cellulose

-

 +

E 6011

60

414

48

331

22

27 / -29

1

cellulose

x

+

E 6012

60

414

48

331

17

n. gesp.

1

rutile

x

-

E 6013

60

414

48

331

17

n. gesp.

1

rutile

x

 + / --

E 6019

60

414

48

331

22

27 / -18

1

rutile-acid

x

  + / --

E 6020

60

414

48

331

22

n. gesp.

2

acid

x

c) + / --

E 6022

60

414

n. gesp.

n. gesp.

n. gesp.

n. gesp.

2

acid

x

--

E 6027

60

414

48

331

22

27 / -29

2

acid, high recovery

x

c) + / --

 

 

 

 

 

 

 

 

 

 

 

E 7014

70

482

58

399

17

n. gesp.

1

rutile, high recovery

x

  + / --

E 7015

70

482

58

399

22

27 / -29

1

basic

-

+

E 7016

70

482

58

399

22

27 / -29

1

basic

x

+

E 7016-1

70

482

58

399

22

27 / -46

1

basic

x

+

E 7018

70

482

58

399

22

27 / -29

1

basic

x

+

E 7018-1

70

482

58

399

22

27 / -46

1

basic

x

+

E 7018 M

a)

482

b)

b)

24

67 / -29

1

basic

-

+

E 7024

70

482

58

399

17

n. gesp.

2

rutile, high recovery

x

 + / --

E 7027

70

482

58

399

22

27 / -29

2

acid, high recovery

x

c) + / --

E 7028

70

482

58

399

22

27 / -29

2

basic, high recovery

x

+

E 7048

70

482

58

399

22

27 / -29

4

basic

x

+

                     
                     
a) Nominal value 70 ksi (482 N/mm²)            
b) Limits are  53-72 ksi (365-496 N/mm²)

Code

Welding positions

    forr ø 2,4 mm the limit is  max. 77 ksi (N/mm²)

1

 All positions except vertical down 
c) H-V standing fillets: - pole  

2

 Horizontal and horizontal vertical standing fillet's
           

4

 All positions but in vertical only downwards
In addition there are demands for:            
 ● Chemical compostion                 
 ● X-ray testing