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OK 67.15
SMAW
Type Basic
OK 67.15 is a stainless steel electrode for welding 25Cr20Ni steels. Also suitable for welding armour steel, austenitic manganese steel and for joining of dissimilar steels. OK 67.15 deposits a very crack-resistant weld metal.
Welding current, A
DC+
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| Classifications | Approvals | Typical all weld metal composition | Typical properties all weld metal | | EN 1600 | | E 25 20 B 2 2 | | SFA/AWS A5.4 | | E310-15 | | Werkstoff Nr. | | 1.4842 |
| | DB | 30.039.01 | |
| Sepros | UNA 409820 | |
| VdTÜV | 01025 | |
| CE | EN 13479 | |
| | C | 0,12 | | Si | 0,5 | | Mn | 2,2 | | Cr | 26,0 | | Ni | 21,0 | | Mo | <0,5 | | Cu | <0,5 |
| Redrying temperature, °C
200
Redrying time, hours
2
Recovery
100-105
Yield stress, MPa
410
Tensile strength, MPa
590
Elongation, %
35
Elongation, %
35
Ferrite content
FN 0
| Charpy V | | Test temps, °C | Impact values, J | | +20 | 100 |
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| Diameter, mm | 2,0 | 2,5 | 3,2 | 4,0 | 5,0 | | Length, mm | 300 | 300 | 350 | 350 | 350 | | Arc voltage, V | 24 | 25 | 25 | 26 | 26 | | Welding current, A | 45-55 | 50-85 | 60-115 | 70-160 | 130-200 | | N. Kg weld metal/kg electrodes | 0,62 | 0,61 | 0,59 | 0,59 | 0,60 | | B. No. of electrodes/kg weld metal | 162 | 96 | 50 | 28 | 22 | | H. Kg weld metal/hour arc time | 0,6 | 0,9 | 1,2 | 1,8 | 2,5 | | T. Burn-off time, secs/electrode | 36 | 40 | 60 | 62 | 65 |
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