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OK 78.16
SMAW
Welding current, A
DC(+)
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| Classifications | Approvals | Typical all weld metal composition | Typical properties all weld metal | | | | Redrying temperature, °C
350
Redrying time, hours
2
Recovery
120%
Yield stress, MPa
870
Tensile strength, MPa
900
Elongation, %
18
Elongation, %
18
| Charpy V | | Test temps, °C | Impact values, J | | +20 | 50 |
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| Diameter, mm | 2,5 | 3,2 | 4,0 | 5,0 | 6,0 | | Length, mm | 350 | 450 | 450 | 450 | 450 | | Arc voltage, V | 20 | 21 | 22 | 23 | 25 | | Welding current, A | 75-100 | 105-140 | 145-195 | 190-260 | 240-330 | | N. Kg weld metal/kg electrodes | 0,64 | 0,64 | 0,66 | 0,68 | 0,70 | | B. No. of electrodes/kg weld metal | 70,0 | 32,5 | 22,5 | 15,0 | 10,0 | | H. Kg weld metal/hour arc time | 0,9 | 1,4 | 1,9 | 2,8 | 3,6 | | T. Burn-off time, secs/electrode | 58 | 78 | 83 | 86 | 98 |
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