Application/properties: Cellulosic electrode for welding of large diameter and high strength pipes using the vertical down technique. It is suitable for welding root passes hot passes filler and cover passes.
Weld metal analysis in % (typical values):
P
S
Mo
Ni
Si
Mn
C
< 0.02
< 0.02
0.25
0.65
0.1
0.7
0.11
Mechanical Properties of all-weld metal: (Single values are typical values)
Impact energy (J)
ISO-V
Elongation
A4 (%)
Yield Strength
(N/mm2)
Tensile Strength
(N/mm2)
-30°C
> 27
> 19
> 460
> 550
Welding Parameters
Amperage (A)
Length (mm)
Diameter (mm)
60 – 80
350
2.5
80 – 120
350
3.25
110 – 140
350
4.0
140 – 200
350
5.0
Materials:
StE 415.7 to StE 485.7; StE 415.7 TM to StE 480.7 TM.
DIN Standard
L415NB to L485NB; L415MB to L485MB
EN Standard
APl Spec. 5 L : X52, X56, X60, X70.
ASTM Standard
*This electrode covers E8010-G properties.
*Preheat and interpass temperature is selected according to grade and thickness of pipe.
