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OK 92.58
SMAW
Type Basic-special
A nickel-iron-cored electrode for joining normal grades of cast iron, such as grey, ductile and malleable irons. It is also suitable for the rectification and repair of these grades and for joining them to steel. Deposition is performed on cold or slightly preheated cast iron. The weld metal is stronger and more resistant to imporities than the nickel-cored type.
Welding current, A
AC, DC+ - OCV 50 V
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| Classifications | Approvals | Typical all weld metal composition | Typical properties all weld metal | | SFA/AWS A5.15 | | ENiFe-CI-A | | EN ISO 1071 | | E C NiFe-Cl-A 1 |
| | | C | 1,5 | | Si | 0,7 | | Mn | 0,8 | | Ni | 51 | | Al | 1,4 | | Fe | 46 |
| Redrying temperature, °C
200
Redrying time, hours
2
Recovery
105
Tensile strength, MPa
375
Weld metal hardness, a w
180 HB
Machinability
Good
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| Diameter, mm | 2,5 | 3,2 | 4,0 | | Length, mm | 300 | 350 | 350 | | Arc voltage, V | 21 | 23 | 24 | | Welding current, A | 55-75 | 75-100 | 85-160 | | N. Kg weld metal/kg electrodes | 0,70 | 0,70 | 0,70 | | B. No. of electrodes/kg weld metal | 90 | 45 | 30 | | H. Kg weld metal/hour arc time | 0,6 | 0,9 | 1,8 | | T. Burn-off time, secs/electrode | 70 | 90 | 70 |
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