|
|
 |
|
|
|
|
Description and Applications |
|
HE8018-B2 is a iron powder
low hydrogen type which can increase deposition
rate, X-ray test is good and mechanical
properties is also excellent. The deposited
metal contains 1.2％Cr
- 0.55％Mo
as principal element. It is intended for
welding Cr-Mo alloy steels used at high-pressure
boiler and high temperature (under 550℃). |
| |
|
Guideline in Usage |
|
1. |
Electrode should be re-dried
at 350
～
400℃ for 60 minutes. |
|
2. |
The weldment should reheat at 100～150℃
and post heat at 680
～
690℃ for 60 minutes. |
|
3. |
Keep the arc as short as possible. |
|
|
|
|
|
|
Typical
Chemical Composition of Weld Metal（％） |
|
C |
Si |
Mn |
P |
S |
Mo |
Cr |
|
0.06 |
0.41 |
0.88 |
0.012 |
0.01 |
0.55 |
1.20 |
|
|
|
|
Typical Mechanical Properties of Weld Metal |
Yield Strength
N/mm2 |
Tensile Strength
N/mm2 |
Elongation
％ |
Post heat Treatment |
|
520 |
600 |
28 |
690℃ × 1 hr. |
|
|
|
|
Size & Recommended Current Range（AC
) |
|
|
|
2.6 |
3.2 |
4.0 |
4.8 |
5.0 |
6.0 |
|
|
300 |
350 |
350
400 |
350 |
400
450 |
450 |
|
Current (Amp) |
F |
60~90 |
90~140 |
150~200 |
190~230 |
190~240 |
240~300 |
|
V,OH |
50~80 |
80~110 |
120~150 |
140~180 |
140~190 |
－ |
|
|
|
|
 |
