CLASSIFICATION & CODING
- AWS : E-7018
- BSEN : E-422B31H5
- TS/DIN : E- 5144BB1026
- IS:814 : EB5426H2X
DESCRIPTION
A medium heavy coated , Basic type, all position , hydrogen controlled electrodes producing a medium tensile and ductile weld metal for welding of heavy section in mild steel , medium tensile steels, difficult steels high in carbon , sulphur and cast steels. The electrodes is also suitable for steels of unknown compositions and for non machinable deposit on cast steel/ iron. The weld metal is highly resistant to cracking . Gives the Radiographic Quality weld.
APPLICATION
High carbon steel parts, high carbon steel to mild steels, low alloy steels, steel relatively high in sulphur, cast steel, steel of unknown composition. Typical application include coaches, ships, heavy duty structures, earthmoving machinery , rotatory kiln shells, grey cast iron parts etc.
ALL WELD METAL CHEMICAL COMPOSITION ( Typical ) :
Carbon%
0.07
Manganese%
1.10
Silicon%
0.54
Sulphur%
0.02
Phosphorous%
0.025
ALL WELD METAL MACHENICAL PROPERTIES ( Typical ) :
Yield strength at -20*C/ -30*C
490N/mm2
Ultimate Tensile Strength
575N/mm2
Elongation%
28
CVN Impact
80 / 40
CURRENT & CONDITIONS : USE AC ( 70 OCV ) OR DC ( + )
SIZE (mm) :
2.50x350
3.15x450
4.00x450
190-250
CURRENT ( amp ) :
70-100
90-140
140-200
190-250