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OK E2594-15 Electrode
Description
OK 68.55 is a stainless steel electrode for welding austenitic-ferritic Super Duplex steels, such as SAF 2507, Zeron 100, and similar alloys. The OK 68.55 deposits a high-ductility weld metal.
Coated electrodes for stainless steel welding are classified by their coating composition as: rutile (easiest to use), basic (for more demanding applications), and high-efficiency (contains large amounts of iron powder in the coating for high productivity).
| Category | Description |
| Classifications |
EN ISO 3581-A: E 25 9 4 N L B 4 2 SFA/AWS A5.4: E2594-15 Werkstoffnummer: (1.4410) |
| Approvals | DNV-GL: Duplex |
| Welding Current | DC+ |
| Ferrite Content | FN 35-50 |
| Alloy Type | Austenitic CrNiMo |
| Coating Type | Basic |
| C | Mn | Si | Ni | Cr | Mo | N | FN WRC-92 |
| 0.03 | 0.9 | 0.6 | 10.4 | 25.2 | 4.3 | 0.23 | 45 |
| Diameter | Amperage | Voltage | Efficiency (%) | Fusion time per electrode @ 90% I max. | Deposition rate @ 90% I max. |
| 2.5 x 300 mm | 50-80 A | 23 V | 62 % | 48 sec | 0.8 kg/h |
| 3.2 x 350 mm | 60-100 A | 23 V | 63 % | 68 sec | 1.1 kg/h |
| 4.0 x 350 mm | 100-140 A | 23 V | 62 % | 70 sec | 1.6 kg/h |
