E 90 18– B3L–H8
1426n ama 1426n

Welding electrode for creep resistant steels

AMA 1426N

AWS/ASME SFA – 5.5: E 90 18– B3L–H8
DIN 8575 : E CrMo 2 B 20+
EN 1599 : E CrMo 2 B 42 H10

Application/properties:

Basic electrode with low carbon weld metal , suitable for creep resistant and Hydrogen resistant steels (boiler, vessels and pipes) up to working temperature of 600°C. It’s weld metal is tough and resistant to work embitterment.

Weld metal analysis in % (typical values):

C Mn Si S P Cr Mo
<0.05 0.7 0.3 <0.02 <0.02 2.3 1

Mechanical Properties of all-weld metal:

Tensile Strength
( N/mm )
Yield Strength
( N/mm )
Elongation
A4 %)
Impact energy (J)
ISO - V
20°C+
Heat treatment
≥620 > 530 >17 150 1 h at 690°C

Welding Parameters
Diameter (mm) Length (mm) Amperage (A)
2.5 350 60 – 90
3.25 450 85 – 130
4.0 450 140 – 180
5.0 450 190 – 230

Materials:

DIN Standard 10CrMo 9 10, 10 CrSiMo V 7, 24 CrMo 10; GS- 12 CrMo 9 10, GS – 19 CrMo 9 10
EN Standard 10CrMo 9 10, 10 CrSiMo V 7; G17 CrMo 9 10
ASTM Standard A355 Gr. P22; A217 Gr.WC9.

Rebaking:

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