E 8018–B2–H8
1263n ama 1263n

Welding electrode for creep resistant steels

AMA 1263N

AWS/ASME SFA – 5.5: E 8018–B2–H8
DIN 8575 : E CrMo 1 B 20+
prEN 1599: E CrMo 1 B 42 H 10

Application/properties:

Electrode for welding of creep resistant and high-pressure hydrogen resistant steels used in the construction of pressure vessels, boilers and piping subjected to operating temperatures up to +570°C. Welds are of X-ray quality.
Preheating, interpass temperature and post-weld heat treatment in accordance with base metal to be welded.

Weld metal analysis in % (typical values):

C Mn Si Cr Mo
0.06 0.80 0.40 1.00 0.50

Mechanical Properties of all-weld metal:

(single values are typical values)

Tensile Strength
( N/mm )
Yield Strength
( N/mm )(%)
Elongation
(5*d)%
Impact energy (J)
ISO - V
20°C+
Heat treatment
560 - 660 > 490 >22 120 T
450 - 550 > 300 >26 150 N+T

T: Tempered 0.5 hour at 700°C, air cooling
N+T: Normalized + tempered 0.5 hour at 920°C, air cooling + 0.5 hour at 700°C

Welding Parameters
Diameter (mm) Length (mm) Amperage (A)
2.5 350 60 – 85
3.25 450 100– 130
4.0 450 140 – 180
5.0 450 190 – 230

Materials:

DIN Standard 13CrMo 44, 15 CrMo 5, 16 CrMo 44, 25 CrMo 4,24 CrMo 5, GS – 22 CrMo 54, GS- 17 CrMo 55
EN Standard 13CrMo 4-5, 15 CrMo 5, 42 CrMo 4, 16 CrMoV 4, 25 CrMo 4,24 CrMo 5, G22 CrMo 5-4, G17 CrMo 5-5
ASTM Standard A193 Gr. B7; A355 Gr.P11 a. P12; A217 Gr. WC6 .

Rebaking:

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