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Description and Applications |
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HE8018-B1
is a iron powder low hydrogen type electrodes
for welding 0.50% Cr-0.50% Mo steels to be used
at high temperature around 500℃. It is suitable
for welding of high-pressure boiler, chemical
and refinery industries. It has high deposition
rate, with excellent X-ray performance and
mechanical properties, too. |
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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. |
Preheated
and interpass temperature should be controlled
at 100 ∼ 200℃ during welding. Stress relieved
heat treatment at 605∼635℃ for one hour. |
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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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0.08 |
0.35 |
0.86 |
0.019 |
0.008 |
0.47 |
0.49 |
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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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514 |
617 |
25 |
620℃ × 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 |
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 |
80~120 |
120~150 |
140~180 |
140~190 |
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