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7018 - 1         
Code :    
Tip Colour :    
Coating : Basic  
Recovery : 125%  
Correspondence : AWS   A5.1 :   E 7018 -1
DIN    8529 :   E Y 46 66 Mn B
EN      499   :   E 46 5 B 32 H 10
ISIRI   871   :   E-534 B 20
 
Description :

It is a basic coated electrode for high quality weld joints with highest strength.
It is suitable for welding steels with low purity and high carbon content Weld metal has high impact strength at low temperatures ductile down to –60°C.
Good weld ability in all position except vertical down. As the weld metal is very resistant to hot cracking. It is used particularly to weld rigidly restrained mass structures where high welding stresses are unavoidable.
The slag is easy to remove and it gives very high quality, smooth weld beads. Deposit has very low hydrogen content, it has 125 % metal recovery, re-drying is 300°C, min 2 h.

 
Application :

It is especially suitable for fine grained structural steels having high yield strength values.
It is designed for steel constructions and machines operating under dynamic forces at low temperatures. Welding of ship’s plate of A-, D- and E-quality, boiler and pressure vessel manufacturing and pipe connections are among its application areas.
It can join steel parts to steel casts and can be used in the welding of thick parts.
It is suitable for the root pass and welding in difficult positions. It gives excellent weld beads with high impact strength values at subzero temperatures.

 
 
Typical chemical composition of weld metal. ( % )
C Si Mn  
0.07 0.50 1.20  
 
Typical mechanical properties of weld metal.
UTS
( N / mm² )
YP
( N / mm² )
EL ( % ) IV ( J )
-20oC             -40oC            -50oC
580-600 480-500 30 - 35 180              120                90
 

Size available and recommended currents.  AC Min. 65 V / DC { + }

Dia. ( mm ) 2.50 3.20 4 5
L ( mm ) 350 350/450 450 450
AMP. F 80 -110 110 -150 140 -200 200 -260
 
 
Welding Steels
grades
:

General structural steels :
St 33, St 34, St 37, St 42, St 44, St 50-2 - St 70-2

Fine grained steels :
St E 255 - St E 420; WSt E 255 - W St E 420, TSt E 255-TSt E 420

Pipe materials :
St E 240-7, St E 290-7, St E 360-7; 5LX42-5LX60

Elevated temperature steels :
St 35.8, St 45.8

Boiler and pressure vessel steels :
H1, H11, H111, 17 Mn 4, 19 Mn 6

Ship plates :
A-, D-, E-, AH-, DH-, EH

Cast steels :
GS-38, GS-45, GS-52, GS-60, GS-62, C 60, Ck 60

 
Note : To have best use and keep the properties in good condition, store in dry place.
In case of moisture, dry the electrode at 300oC for 2 hour before use.
 
                 
     
 
Head Office: No. 29, 1St Floor, Mollaei St. , Valiasr Ave. Tehran-IRAN
Tel : +98(21)88890689   Fax : +98(21)88908767
 
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