FusoFlex

Unimate-1:

Hydrogen-controlled, basic coated iron powder type electrode, presence of Mn & Ni in appropriate proportion imparts to weld metal a high degree of low temperature notch toughness. The electrode is thus well suited for welding fine grained steels, HSLA steels, used in Penstocks, Bridges, Pressure Vessels, Tanks etc. and Nickel steels used in tanks & piping for liquified gases.

Base materials: ASTM a 203 Grades A & B.
Fine grained constructional steel as per DIN: TTSte 26, 29, 32, 36, 39, 43.
Steels for low temperature service as per DIN: TT St 35 N, TT St 35 V, TT St 41 V, 14 Ni 14, 16 Ni 14.
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. In particular, it displays remarkable impact resistance at subzero temperatures down to -70°C.
A higher level of metal recovery at 100-110%.
Resistance to moisture pick-up.

Identification:Name Printed

Application:

Chemical analysis of all weld deposits(%):

Carbon	Manganese	Silicon	Nickel/th>	Sulphur	Phosphorus
0.10	0.8-1.25	0.50	2.0-2.75	0.025	0.025

All weld mechanical properties:

Ultimate Tensile Strength kg/mm²	Yield Strength kg/mm²	Elongation (L=4d)%	CVN Impact Value Joules at -59°C
57-64	48-56	22-28	50-100

Welding current ranges and packing data for sizes manufactured:

Dia (mm)	2.5	3.15	4.0	5.0
Length(mm)	350	350/450	450	450
Current(Amp)(DC+ or AC 90V)	80-100	100-140	140-180	200-250
Pieces per carton	125	90	60	40

Notes on usage:

Redry the electrodes at 300-350°C for two hour, cool them to 100°C and transfer them to a holding oven maintained at 50°C-60°C.
Minimise heat input and control interpass temperature below 150°C to obtain optimum impact values.
Clean the weld area free of any surface contaminations.