OK 67.55
OK 67.55 is a basic coated electrode especially designed for welding duplex stainless steels i, e. UNS S31803. The deposited weld metal gives very high ductility down to -50°C/-60°C. Particularly suitable for welding duplex pipes in offshore applications.
Typical Charpy V-Notch Properties
| as welded iso | ||||
Typical Tensile Properties
| Condition | Elongation | Shielding Gas | Tensile Strength | Yield Strength |
| As Welded | 28 % | ISO | 800 MPa (116 ksi) | 650 MPa (94 ksi) |
Deposition Data
| Current | Deposition Rate @ 90% I max | Diameter | Deposition Efficiency (%) | Number of electrodes/kg weld metal | Voltage | |
| 50-80 A | 49 sec | 0.8 kg/h (1.8 lb/h) | 2.5 x 300.0 mm (0.098 x 11.8 in.) | 59 % | 96 | 23 V |
| 65-115 A | 61 sec | 1.2 kg/h (2.6 lb/h) | 3.2 x 350.0 mm (1/8 x 13.8 in.) | 59 % | 50 | 24 V |
| 80-140 A | 74 sec | 1.5 kg/h (3.3 lb/h) | 4.0 x 350.0 mm (5/32 x 13.8 in.) | 60 % | 33 | 24 V |
Classifications
| Classifications |
Werkstoffnummer : 1.4462 EN ISO 3581-A : E 22 9 3 N L B 2 2 SFA/AWS A5.4 : E2209-15 |
Approvals
| Approvals |
DNV-GL Duplex Seproz UNA 272580 VdTÜV 06774 |
| Approvals are based on factory location. Please contact ESAB for more information. |
Consumable Characteristics
| Alloy Type | Austenitic CrNiMo |
| Coating Type | Basic |
| Ferrite Content | FN 35-50 |
| Welding Current | DC+ |
Typical Weld Metal Analysis %
| Typical Weld Metal Analysis % | ||||||||||||||
| C | Cr | Mn | Mo | N | Ni | Si | Si+Fe | |||||||
| 0.04 % | 23.2 % | 1.0 % | 3.2 % | 0.15 % | 9.1 % | 0.7 % | 41 % | |||||||
Part Numbers and Accessories
ESAB EQUIPMENT WARRANTIES ARE VALID ONLY WHEN PURCHASED THROUGH AN ESAB AUTHORIZED DEALERSHIP.