Basic type electrode used for the welding of heat resisting steels containing 9Cr - 1 Mo at elevated temperatures up to 650°C. Applications include pressure vessels, heat exchangers, piping, and boiler super heaters in oil refineries and power plants.
Features and Applications
Welding of boilers, pressure vessel steels, pipe steels and cast steels
Electrode coating of basic character
Electrode content of wt% 9 Chromium wt% 1 Molybdenum
Serviceability at temperatures of values up to 650°C
Requirement of re-drying for min. 2 hours at the temperatures between 300°C and 350°C
Vacuumed packed electrodes
Typical Base Material Grades
X12CrMo9-1, X7CrMo9-1, GX12CrMo1O.
| Standards |
Current Type |
EN ISO 3580-A - E CrMo9 B 4 2 H5
|
D.C. (+)
|
AWS A5.5 - E8018-B8 H5 (E 505-15)
|
|
| Chemical Composition of Weld Metal % (Typical) |
| C |
Si |
Mn |
Mo |
Cr |
| 0.07 |
0.4 |
0.7 |
1.0
|
9.0 |
| Mechanical Properties |
Yield Strength
(N/mm2) |
Tensile Strength
(N/mm2) |
Impact Strength
(ISO-V/+20ºC)
|
Elongation
(Lo=5do)(%) |
Heat Treatment |
min. 460
|
min 590
|
min. 34 J |
min. 19
|
740-780ºC/2hr
300ºC (air) |
Welding Positions
| Operating Data |
| Diameter x Length (mm) |
Welding Current (A) |
Package
Weight (Kg) |
Carton
Weight (Kg) |
|
2.50 x 350
3.20 x 350
4.00 x 450
|
60 - 90
90 - 130
120 - 160
|
2
2
3
|
12
12
18
|
Liability: Whilst all reasonable efforts have been made to ensure the accuracy of the information contained. This information is subject to change without notice and can be only considered as suitable for general guidance.
