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Description and Applications |
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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℃). |
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Guideline in Usage |
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1. |
Electrode should be re-dried
at 350
∼
400℃ for 60 minutes. |
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2. |
The weldment should reheat at 100∼150℃
and post heat at 680
∼
690℃ for 60 minutes. |
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3. |
Keep the arc as short as possible. |
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Typical
Chemical Composition of Weld Metal（％） |
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C |
Si |
Mn |
P |
S |
Mo |
Cr |
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0.06 |
0.41 |
0.88 |
0.012 |
0.01 |
0.55 |
1.20 |
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Typical Mechanical Properties of Weld Metal |
Yield Strength
N/mm2 |
Tensile Strength
N/mm2 |
Elongation
％ |
Post heat Treatment |
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520 |
600 |
28 |
690℃ × 1 hr. |
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Size & Recommended Current Range（AC
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2.6 |
3.2 |
4.0 |
4.8 |
5.0 |
6.0 |
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300 |
350 |
350
400 |
350 |
400
450 |
450 |
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Current (Amp) |
F |
60~90 |
90~140 |
150~200 |
190~230 |
190~240 |
240~300 |
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V,OH |
50~80 |
80~110 |
120~150 |
140~180 |
140~190 |
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