Cellulosic electrode for welding of large diameter and high strength pipes using the vertical down technique. It is suitable for welding root passes filler and cover passes.
Weld metal analysis in % (typical values):
C
Mn
Si
Ni
MO
S
P
0.11
0.7
0.1
0.65
0.25
<0.02
<0.02
Mechanical Properties of all-weld metal:
(single values are typical values)
Tensile Strength ( N/mm 2 )
Yield Strength ( N/mm 2 )
Elongation A4 (%)
Impact energy (J) ISO - V 30°C-
>550
> 460
> 19
> 27
Welding Parameters
Diameter (mm)
Length (mm)
Amperage (A)
2.5
350
60 – 80
3.25
350
80 – 120
4.0
350
110 – 140
5.0
350
140 – 200
Materials:
DIN Standard
STE 415.7 to STE 485.7; StE 415.7 TM to StE 480.7 TM
