E 8010-G
1049p ama 1049p

Cellulose electrodes

AMA 1049P

AWS/ASME SFA – 5.5 : E 8010-G

Application/properties:

Cellulosic electrode is appropriate for welding of large diameter and high strength pipes using the vertical down technique. It is suitable for welding hot , filler and cover passes.

Weld metal analysis in % (typical values):

C Mn Si Ni Mo S P
0.12 0.7 0.13 0.5 0.25 <0.02 <0.02

Mechanical Properties of all-weld metal:

(single values are typical values)

Tensile Strength
( N/mm )
Yield Strength
( N/mm )
Elongation
A4 (%)
Impact energy (J)
ISO - V
10°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 ST34.7 to ST60.7; StE 210.7 to STE 415.7; StE 415.7 TM to StE 480.7 TM. Root pass up to StE 480.7 TM
EN Standard L415NB to L485NB, L415MB to L485MB
ASTM Standard APl Spec. 5 L : X52, X56, X60, X70.

*Preheat and interpass temperature is selected according to grade and thickness of pipe.