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OK 67.66 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 |   |  | | C | <0,03 |  | Si | 0,5 |  | Mn | 0,1 |  | Cr | 23,0 |  | Ni | 13,0 |  | Mo | <0,5 |  | Cu | <0,2 |  
  | Redrying temperature, °C 250 Redrying time, hours 2 Yield stress, MPa 430 Tensile strength, MPa 580 Elongation, % 45 Elongation, % 45 Ferrite content FN 4-10
 | Charpy V |  | Test temps, °C | Impact values, J |  | +20 | 70 |  
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 | Diameter, mm | 4,0 |  |  Length, mm |  350 |  |  Arc voltage, V |  24 |  |  Welding current, A |  110-150 |  |  N. Kg weld metal/kg electrodes |  0,58 |  |  B. No. of electrodes/kg weld metal |  32 |  |  H. Kg weld metal/hour arc time |  1,7 |  |  T. Burn-off time, secs/electrode |  65 |   
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