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OK 84.58
SMAW
Welding current, A
AC, DC+ OCV 65 V
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| Classifications | Approvals | Typical all weld metal composition | Typical properties all weld metal | | | | Redrying temperature, °C
200
Redrying time, hours
2
Recovery
140-145
Weld metal hardness, a w
53-59 HRC
Hardening temperature, °C
950-1000
Hardening oil/air
Quenching medium
Soft annealing, °C
840-860
Tempering resistance
Temp°C/1h.HRC
100.55
200.55
300.52
400.50
500.54
600.46
700.31
Machinability
Grinding only
Abrasion resistance
Very good
High temp. wear resistance
Good
Corrosion resistance
Good
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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 | 23 | 23 | 24 | 26 | 28 | | Welding current, A | 75-110 | 110-150 | 145-200 | 190-270 | 250-370 | | N. Kg weld metal/kg electrodes | 0,67 | 0,67 | 0,67 | 0,66 | 0,65 | | B. No. of electrodes/kg weld metal | 58,0 | 27,0 | 17,5 | 11,5 | 8,5 | | H. Kg weld metal/hour arc time | 1,0 | 1,4 | 1,9 | 2,8 | 4,0 | | T. Burn-off time, secs/electrode | 62 | 95 | 107 | 110 | 110 |
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