FusoFlex

Ultimate-90-B3:

Hydrogen controlled iron powder type electrode designed for welding creep-resisting steels & Cr-Mo & Cr-Mo-V steels resistant to hydrogen under pressure, also cast steels of similar composition as weld metal. The weld metal is oxidation resistant at service temperatures upto 600°C.

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.
A higher level of metal recovery at 100-110%.
Resistance to moisture pick-up.

Identification:Name Printed

Application:Welding of 2.25% Cr 1% Mo steel used for super heater tubes & steam pipes of boilers for electric power plant, equipment of oil refineries & high temperature synthetic chemical industries.

Chemical analysis of all weld deposits(%):

Carbon	Manganese	Silicon	Chromium	Molybdenum	Sulphur	Phosphorus
0.05-0.12	0.90	0.50	2.0-2.50	0.90-1.20	0.025	0.030

All weld mechanical properties:

Ultimate Tensile Strength kg/mm²	Yield Strength kg/mm²	Elongation (L=4d)%
63-70	55-62	20-25

Welding current ranges and packing data for sizes manufactured:

Dia (mm)	2.5	3.15	4.0	5.0
Length(mm)	350	450	450	450
Current(Amp)(DC+ or AC 90V)	70-100	100-140	140-180	180-240
Pieces per carton	125	90	60	40

Ultimate-90-B3:

Chemical analysis of all weld deposits(%):

All weld mechanical properties:

Welding current ranges and packing data for sizes manufactured:

Notes on usage: