E 8018–B6–H8 E 502–15–H8
1366n2 ama 1366n2

Welding electrode for creep resistant steels

AMA 1366N2

AWS/ASME SFA-5.4: E 502–15–H8
AWS/ASME SFA-5.5 : E 8018–B6–H8
DIN 8575 : E CrMo 5 B 20+
prEN 1599: E Z CrMo 5 B 42 H 10

Application/properties:

Electrode for welding of boilers, pressure vessels subjected to operating temperature up to 600°C. Weld metal matches the composition of steel grade 12CrMo195 featuring equal resistance to high-pressure hydrogen attack; creep resistance and creep rupture strength. Typical applications are petrochemical process plants, Hydro crackers in chemical industries.

Weld metal analysis in % (typical values):

C Mn Si Cr Mo
0.06 0.9 0.30 5 0.50

Mechanical Properties of all-weld metal:

(single values are typical values)

Tensile Strength
( N/mm )
Yield Strength
( N/mm )(%)
Elongation
A5,(%)
Impact energy (J)
ISO - V
20°C+
Heat treatment
600 - 700 > 500 18 100 T
650 - 750 > 580 17 120 N+T

T: Tempered 1 hour at 760°C, air cooling
N+: Normalized + tempered 0.5 h at 960°C, air cooling +2 hours at 710°C

Welding Parameters
Diameter (mm) Length (mm) Amperage (A)
2.5 250 60 – 90
3.25 350 85– 130
4.0 350 140 – 180
5.0 450 180 – 230

Materials:

DIN Standard X12CrMo5; GX12CrMo5
ASTM Standard A182 Gr.F5, A 199 Gr.T5, A213 Gr.T5, A217 Gr.C5, A335 Gr.P5, A336 C1.F5, A369 Gr.FP5, A387 Gr.5 .

Rebaking:

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