SMAW
LB-57
Stick electrode
| Features: | - Suitable for butt and fillet welding of 520MPa high tensile steel
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| Classification: | AWS A5.1 E7016 |
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| Redrying Conditions: | 350-400°Cx1h |
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| Identification color: | 1st Blue, 2nd Brown |
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| Polarity: | AC, DCEP |
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Welding Positions:
Packaging data
| φ mm | Length mm | kg/pack | kg/carton | g/piece | carton mm |
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| 2.6 | 350 | 5 | 20 | 20 | 170W, 125H, 380L |
| 3.2 | 350 | 5 | 20 | 31 | 170W, 120H, 380L |
| 4.0 | 400 | 5 | 20 | 55 | 170W, 110H, 430L |
| 5.0 | 450 | 5 | 20 | 97 | 170W, 105H, 480L |
| 6.0 | 450 | 5 | 20 | 138 | 170W, 105H, 480L
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Composition (all-weld metal mass %)
| | Typical (AC) | Guarantya |
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| C | 0.08 | 0.15 |
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| Si | 0.64 | 0.75 |
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| Mn | 0.81 | 1.60 |
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| P | 0.011 | 0.035 |
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| S | 0.003 | 0.035 |
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| Ni | 0.01 | 0.30 |
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| Cr | 0.03 | 0.20 |
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| Mo | 0.17 | 0.30 |
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| V | 0.01 | 0.08 |
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| Othersb | 1.03 | 1.75 |
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Note: aSingle values are maximium.
bCombined Limit for Mn+Ni+Cr+Mo+V
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Welding parameters (A)
| φ mm | 1F, 1G, 2F, 2G | 3G uphill, 4G |
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| 2.6 | 50-85 | 50-80 |
| 3.2 | 90-130 | 80-115 |
| 4.0 | 130-180 | 110-170 |
| 5.0 | 180-250 | 150-200 |
| 6.0 | 250-310 | - |
All-weld mechanical properties
| | Typical (AC) | Guaranty |
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| 0.2%YS (MPa) | 530 | 470 | 400min. | 400min. |
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| TS (MPa) | 610 | 540 | 483min. | 500min. |
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| EI on 4d (%) | 31 | 32 | 22min. | 25min. |
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| IV -29°C (J) | 100 | 130 | 27min. | 27min. |
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| PWHT (°Cxh) | AW | 620x1 | AW | 620±15x10 |
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