![](/images/new-backgrounds/1258931/25893191x1.webp)
11-2. Electrode and Amperage Selection Chart
| ELECTRODE |
| DIAMETER |
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| AMPERAGE RANGE |
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| 50 |
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| 100 |
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| 150 | 200 | 250 |
| 300 | 350 | 400 | 450 |
| ELECTRODE |
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| POSITION |
| PENETRATION |
| USAGE | ||||||||||||||||||||
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| 6011 |
| 7/32 |
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| DC* | AC |
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| 3/32 |
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| 6010 |
| 1/8 |
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| 5/32 |
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| & |
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| 3/16 |
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| 1/4 |
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| 6010 | EP |
| ALL |
| DEEP |
| MIN. PREP, ROUGH | ||
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| 1/16 |
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| 6011 | EP |
| ALL |
| DEEP |
| HIGH SPATTER | |
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| 5/64 |
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| 6013 | EP,EN |
| ALL |
| LOW |
| GENERAL |
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| 3/32 |
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| 6013 |
| 1/8 |
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| 7014 | EP,EN |
| ALL |
| MED |
| SMOOTH, EASY, | ||
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| 5/32 |
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| FAST |
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| 3/16 |
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| 7018 | EP |
| ALL |
| LOW |
| LOW HYDROGEN, | ||
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| 7/32 |
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| STRONG |
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| 1/4 |
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| FLAT |
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| SMOOTH, EASY, | |
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| 3/32 |
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| 7024 | EP,EN |
| HORIZ |
| LOW |
| FASTER | ||
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| FILLET |
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| 1/8 |
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| EP |
| ALL |
| LOW |
| CAST IRON |
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| 7014 |
| 5/32 |
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| 308L | EP |
| ALL |
| LOW |
| STAINLESS |
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| 3/16 |
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| 7/32 |
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| *EP = ELECTRODE POSITIVE (REVERSE POLARITY) | ||||||||
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| 1/4 |
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| EN = ELECTRODE NEGATIVE (STRAIGHT POLARITY) | ||||||||
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| 3/32 |
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| 1/8 |
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| 7018 |
| 5/32 |
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| 3/16 |
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| 7/32 |
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| 1/4 |
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| 3/32 |
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| 1/8 |
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| 7024 |
| 5/32 |
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| 3/16 |
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| 7/32 |
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| 1/4 |
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| 3/32 |
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| 1/8 |
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| 5/32 |
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| 3/16 |
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| 3/32 |
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| 308L |
| 1/8 |
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| 5/32 |
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| Ref. | |
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11-3. Striking an Arc – Scratch Start Technique
1 | 1 | Electrode |
| 2 | Workpiece |
| 3 | Arc |
| Drag electrode across workpiece | |
2 | like striking a match; lift electrode | |
slightly after touching work. If arc | ||
| goes out electrode was lifted to | |
| high. If electrode sticks to work- | |
3 | piece, use a quick twist to free it. | |
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11-4. Striking an Arc – Tapping Technique
1 | 1 | Electrode |
| 2 | Workpiece |
| 3 | Arc |
| Bring electrode straight down to | |
2 | workpiece; then lift slightly to start | |
arc. If arc goes out, electrode was | ||
| lifted too high. If electrode sticks to | |
| workpiece, use a quick twist to free it. | |
3 |
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