OK 92.55
OK 92.55 is an all-positional, basic coated electrode which deposits a NiCr-based alloy with additions of Mo, W and Nb. The electrode is specifically designed for welding 9%Ni steels for cryogenic applications down to -196°C.
Typical Charpy V-Notch Properties
| Impact Value | Testing Temperature | |||
| as welded aws | ||||
| -196 degC | ||||
| as welded iso | ||||
| 91 J | -196 degC | |||
Typical Tensile Properties
| Condition | As Welded | As Welded |
| Shielding Gas | AWS | ISO |
| Tensile Strength | 727 MPa | |
| Yield Strength | 445 MPa | |
| Elongation | 40 % | |
Deposition Data
| Current | Deposition Rate | Diameter | Number of electrodes/kg weld metal | Voltage | kg weld metal/kg electrodes | |
| 65-115 A | 70 sec | 1.1 kg/h | 2.5 x 350 mm | 55 | 23 V | 0.70 |
| 70-150 A | 68 sec | 1.5 kg/h | 3.2 x 350 mm | 34 | 22 V | 0.66 |
| 120-200 A | 82 sec | 1.9 kg/h | 4.0 x 350 mm | 23 | 22 V | 0.67 |
| 150-240 A | 91 sec | 2.8 kg/h | 5.0 x 350 mm | 14 | 23 V | 0.68 |
Classifications
| Classifications |
SFA/AWS A5.11 : ENiCrMo-6 EN ISO 14172 : E Ni 6620 (NiCr14Mo7Fe) |
Approvals
| Approvals |
ABS ENiCrMo-6 (2.5-4.0 mm) : BV N50 and 9Ni* CE EN 13479 DNV-GL VL 1.5Ni up to VL 9Ni* LR 9Ni NAKS/HAKC 2.5-4.0 mm RINA VL 1.5Ni up to VL 9Ni* |
| Approvals are based on factory location. Please contact ESAB for more information. |
Consumable Characteristics
| Alloy Type | Ni-based CrMoNb |
| Coating Type | Basic |
| Welding Current | AC, DC+- |
Typical Weld Metal Analysis %
| Typical Weld Metal Analysis % | ||||||||||||||
| C | Cr | Fe | Mn | Mo | Nb | Ni | Si | W | ||||||
| 0.05 % | 12.9 % | 5.0 % | 3.0 % | 6.2 % | 1.3 % | 69.4 % | 0.3 % | 1.6 % | ||||||
Extra Info
*See certificates for details.