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OK 86.28
SMAW
Welding current, A
AC, DC+ OCV 70 V
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| Classifications | Approvals | Typical all weld metal composition | Typical properties all weld metal | | | DB | 20.039.05 | |
| Sepros | UNA 409820 | |
| | Redrying temperature, °C
350
Redrying time, hours
2
Recovery
155-160
Yield stress, MPa
440
Tensile strength, MPa
690
Elongation, %
30
Weld metal hardness, a w
160-180 HB
Weld metal hardness, w h
42-46 HRC
Machinability
Grinding (overheating must be avoided)
Metal-to-metal wear resistance
Excellent
| Charpy V | | Test temps, °C | Impact values, J | | +20 | 100 | | -20 | 80 | | -80 | 45 | | -120 | 25 |
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| Diameter, mm | 3,2 | 4,0 | 5,0 | | Length, mm | 450 | 450 | 450 | | Arc voltage, V | 30 | 30 | 31 | | Welding current, A | 100-160 | 130-210 | 170-300 | | N. Kg weld metal/kg electrodes | 0,54 | 0,54 | 0,56 | | B. No. of electrodes/kg weld metal | 26,5 | 17,5 | 11,0 | | H. Kg weld metal/hour arc time | 1,5 | 2,0 | 2,9 | | T. Burn-off time, secs/electrode | 90 | 105 | 114 |
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