E 8018–G–H8
13794vn ama 13794vn

Welding electrodes for creep resistant steels

AMA 13794VN

AWS/ASME SFA-5.5: E 8018–G–H8

Application/properties:

Basic electrode with low carbon weld metal, suitable for resistant and hydrogen resistant steels (boilers, vessels and pipes), up to working temp of 600°C. Its weld metal is tough and resistant to work embitterment.

Weld metal analysis in % (typical values):

C Mn Si P S Cr Mo V
0.05 - 0.12 <0.9 <0.4 <0.02 <0.02 1 - 1.5 0.4 - 0.65 0.1 - 0.35

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
20°C+
>540 > 440 >17 >100

Welding Parameters
Diameter (mm) Length (mm) Amperage (A)
2.5 350 60 – 85
3.25 450 100– 135
4.0 450 140 – 185
5.0 450 180 – 220

Materials:

DIN Standard 13CrMo 4 5, 25 CrMo 4, 14 CrMo 4 5, 16MnCr 5, ST37.3-ST52.3; STE 290.7-STE 415.7
EN Standard S235J2G3; S355J2G3; L290NB- L415NB;L290MB ;P235GH
ASTM Standard A182 Gr. F12-1; A213 Gr.T12; A250 Gr.T12; A355 Gr.P12; A387 Gr. 11, 12; A506 Gr.4130; A507 Gr.4130; A513 Gr.4130; A519 Gr. 4130; A752 Gr.4130; A866 Gr.4130.

Rebaking:

required at 300°C to 350°C for 2 hours