DIN EN ISO 3581-A

E 19 12 3 L R 2 3
1 2 3 4 5

 
 

1 Short symbol for manual arc welding

 

2 Short name for chemical structure of weld metal. The alloy components (approximate values) are listed in the order Cr, Ni, Mo numerically one after the other without their chemical symbol. Alloy components like niob, mangan, nitrogen and copper are added as chemical symbol without specification of their contents. The addition L indicates a very low carbon content. In addition to the alloy structure, the mechanical properties laid down in the standards have to be achieved.

 

3 Short symbol Type of coating
R rutile
B basic

 
 

4 Code no. Transfer efficiency (%) Type of current
1 <105

DC, AC

2 <105

DC

3 >105 - 125 DC, AC
4 >105 - 125

DC

5 >125 - 160

DC, AC

6 >125 - 160

DC

7 >160

DC, AC

8 >160

DC

Verification of suitablility for AC at open-circuit voltage of max. 65 V

 
 

5 Code no. Welding position
1 All positions
2 All positions, except for vertical-down position
3 Butt weld in flat position
Fillet weld in flat and downhand position
4 Butt weld in flat position
Fillet weld in flat position
5 Vertical-down position and positions like code no. 3