OK 92.55


OK 92.55

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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

ConditionElongationShielding GasTensile Strength Yield Strength
As Welded40 %ISO727 MPa (105 ksi)445 MPa (65 ksi)

Current Range

Current Fusion time per electrode at 90% I max 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 SFA/AWS A5.11 : ENiCrMo-6
EN ISO 14172 : E Ni 6620 (NiCr14Mo7Fe)


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
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.


How to purchase OK 92.55

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Part Numbers and Accessories

Part Numbers : OK 92.55