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OK 92.55

An all position basic coated electrode depositing a nickel chromium based alloy with additions of molybdenum, tungsten and niobium. The electrode is especially designed for welding of 9% nickel steels for cryogenic applications down to -196°C. Typical application is land based LNG tanks.

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Highlights

Process

Specifications
Classifications SFA/AWS A5.11 : ENiCrMo-6
EN ISO 14172 : E Ni 6620 (NiCr14Mo7Fe)
Approvals ABS : ENiCrMo-6
BV : ENiCrMo-6
CCS : 5Ni, 9Ni
ClassNK : KMWL92
DNV-GL : VL 1.5Ni up to VL 9Ni *
KR : L 91
LR : 9Ni
RINA : N90
Welding Current AC, DC+-
Alloy Type Ni-based CrMoNb
Coating Type Basic
Min AC OCV 55
Tensile_Properties
Testing Condition Yield Strength Tensile Strength Elongation
ISO
As Welded 445 MPa 727 MPa 40 %
Charpy Testing
Testing Condition Testing Temp Impact Value
ISO
As Welded -196 °C 91 J
Typical Weld Metal Analysis %
C Mn Si Ni Cr Mo Nb W Fe
0.05 3.0 0.3 69.4 12.9 6.2 1.3 1.6 5.0
Deposition Data
Diameter Amps Volts Efficiency (Per) Fusion time per electrode at 90Per I max Deposition rate at 90Per
2.5 x 350 mm 65-115 A 23 V 70 % 70 sec 1.1 kg/h
3.2 x 350 mm 70-150 A 22 V 66 % 68 sec 1.5 kg/h
4.0 x 350 mm 120-200 A 22 V 67 % 82 sec 1.9 kg/h
5.0 x 350 mm 150-240 A 23 V 68 % 91 sec 2.8 kg/h
Description Product Number
OK 92.55 2.5x350mm 1/4 VP 92552530K0
OK 92.55 3.2x350mm 1/2 VP 92553230G0
OK 92.55 4.0x350mm 1/2 VP 92554030G0
OK 92.55 3.2x350mm 3/4 VP 92553230V0

Fact Sheets

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OK 92.55

Best-in-Class Covered Electrode for Nickel

As a world-leading manufacturer of welding and cutting products, ESAB supplies state-of-the-art consumables for the welding of nickel-based materials, dissimilar welds, cast iron, nickel alloy cladding. Typical applications are cryogenic, O&G and R&M. Product selection is simplified with nickel alloy electrodes coded by product names. The products provide great quality, consistency and corrosion resistance ranging from CI type to high alloy grades.

Factory Fresh Nickel Alloy Electrodes, Straight from the Pack

ESAB's VacPac™ packaging is hermetically sealed and vacuum-packed to protect covered electrodes from moisture pick up and re-absorption from the air. VacPac comes in different volumes to suit fabricator consumption, simplify storage and handling, and reduce overall investment.

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