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OK 67.45
SMAW
Type Basic
OK 67.45 is an 18-8-6Mn-austenitic, stainless steel electrode for welding dissimilar steels, 13Mn steels with reduced weldability and for cladding carbon steels. Can also be used as a buffer layer prior to hard surfacing.
Welding current, A
DC+
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| Classifications | Approvals | Typical all weld metal composition | Typical properties all weld metal | | EN 1600 | | E 18 8 Mn B 4 2 | | SFA/AWS A5.4 | | (E307-15) |
| | ABS | Stainless | |
| Sepros | UNA 409820 | |
| VdTÜV | 01580 | |
| | C | 0,11 | | Si | 0,5 | | Mn | 6,0 | | Cr | 18,5 | | Ni | 8,5 | | Mo | <0,5 | | Cu | <0,5 |
| Redrying temperature, °C
200
Redrying time, hours
2
Recovery
100
Yield stress, MPa
470
Tensile strength, MPa
605
Elongation, %
35
Elongation, %
35
Ferrite content
FN <5
Weld metal hardness, a w
approx. 190 HV
Weld metal hardness, w h
approx. 400 HV
Machinability
Fair
| Charpy V | | Test temps, °C | Impact values, J | | +20 | 85 |
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| Diameter, mm | 2,5 | 3,2 | 4,0 | 5,0 | | Length, mm | 300 | 350 | 350 | 350 | | Arc voltage, V | 23 | 24 | 24 | 25 | | Welding current, A | 50-80 | 70-100 | 100-140 | 150-200 | | N. Kg weld metal/kg electrodes | 0,58 | 0,60 | 0,60 | 0,60 | | B. No. of electrodes/kg weld metal | 102 | 51 | 33 | 22 | | H. Kg weld metal/hour arc time | 0,7 | 1,1 | 1,5 | 2,2 | | T. Burn-off time, secs/electrode | 50 | 71 | 73 | 80 |
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