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Ultimate-18NC:

ULTIMATE-18NC is a unique combination of numerous features which every welder and welding engineer look for on shop floor and at erection site: Ease of operation in all positions, Smooth and stable arc which is easy to strike & restrike, combined with low spatter and with due control on molten pool, Slag detachability with little effort, Finely rippled bead with regular profile, Welds of consistent X-Ray quality ,Weld metal which possesses excellent mechanical properties and displays resistance to cracking caused by heavy stresses and/or hydrogen, Resistance to moisture pick-up and For best result, redry electrode at 300°C for one hour before use. It also meets the unique requirements of Sulphide Stress Corrosion Cracking test as per NACE standard TM-01-77 (1986 Rev.) Item No. 53040 and Hydrogen Induced Cracking test as per NACE standard TM-0284-87 Item No. 53050

Identification:Name Printed

Applications:Off-shore drilling rigs, Pipes & Platforms, Pressure Vessels, Frigates & Submarines, Rotary Kiln Shells, Bridges, Machinery for earth moving & road building, Rail wagons & coaches

Chemical analysis of all weld deposits(%):

Carbon Manganese Silicon Sulphur Phosphorus
0.09 0.80-1.40 0.75 0.012 0.020

All weld mechanical properties:

Ultimate Tensile Strength kg/mm² Yield Strength kg/mm² Elongation (L=4d)% CVN Impact Value Joules at -30°C
52-62 45-50 25-35 49-120

Welding current ranges and packing data for sizes manufactured:

Dia (mm) 2.5 3.15 4.0 5.0 6.3
Length(mm) 350 450 450 450 450
Current(Amp)(DC+ or AC 70V) 80-100 100-140 140-190 190-250 250-320
Pieces per carton 125 90 60 40 25