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
| As Welded | |
| Impact Value | 67 ft-lb |
| Impact Value | 91 J |
| Shielding Gas | ISO |
| Testing Temperature | -321 °F |
| Testing Temperature | -196 °C |
Typical Tensile Properties
| Condition | Elongation | Shielding Gas | Tensile Strength | Yield Strength |
| As Welded | 40 % | ISO | 727 MPa (105 ksi) | 445 MPa (65 ksi) |
Deposition Data
| Current | Deposition Rate @ 90% I max | Diameter | Deposition Efficiency (%) | Number of electrodes/kg weld metal | Voltage | |
| 65-115 A | 70 sec | 1.1 kg/h (2,4 lb/h) | 2.5 x 350.0 mm (0.098 x 13,8 in.) | 70 % | 55 | 23 V |
| 70-150 A | 68 sec | 1.5 kg/h (3,3 lb/h) | 3.2 x 350.0 mm (1/8 x 13,8 in.) | 66 % | 34 | 22 V |
| 120-200 A | 82 sec | 1.9 kg/h (4,2 lb/h) | 4.0 x 350.0 mm (5/32 x 13,8 in.) | 67 % | 23 | 22 V |
| 150-240 A | 91 sec | 2.8 kg/h (6,2 lb/h) | 5.0 x 350.0 mm (0.197 x 13,8 in.) | 68 % | 14 | 23 V |
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 Equivalent to SFA/AWS A5.11 ENiCrMo-6 CE EN 13479 ClassNK KMWL92 DNV-GL VL 1.5Ni up to VL 9Ni KR L 91 LR 9Ni NAKS/HAKC 2.5-4.0 mm RINA N90 |
| 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 % | ||||||
*See certificates for details.