FusoFlex

Cryomate-2:

Highly versatile, nickel-base electrode suitable for a wide range of applications

Cryogenic vessels & pipework of 3-9% Ni steels for temperatures down to -196°C.
Elevated temperature services in furnace equipment & petrochemical plants involving temperatures upto 1000°C Joining & surfacing in fabrication.
Repair & maintenance welding.
Base materials: Inconel 600, Incoloy 800, Incoloy DS & other nickel-base alloys.
Dissimilar combinations of several nickel-base alloys (Monel 400, Incoloy 825) to stainless steels, low alloy steels, C-Mn steels, offering advantage of avoiding need for preheat.
Weld metal is characterized by stable properties over a wide range of temperatures from - 269°C to 900°C.
Presence of Mo contributes to improved elevated temperature properties above 600°C.
Addition of Cb along with Mo, confers:resistance to hot cracking; tolerance to dilution in many combinations of nickel- base aloys & steels.

Identification:Name Printed

Carbon	Manganese	Silicon	Chromium	Nickel	Molybdenum	Columbium	Copper	Iron	Sulphur	Phosphorus
0.10	2.0-3.5	1.0	13.0-17.0	65.0	1.0-2.5	1.5-3.0	0.50	10.0	0.015	0.025

Ultimate Tensile Strength kg/mm²	Elongation (L=4d)%	CVN Impact value (Joules) at +20°C	CVN Impact value (Joules) at -50°C	CVN Impact value (Joules) at -196°C	Lateral expansion at -196°C
620	30	80-100	80	50	0.50

Thorough cleaning of joint faces in essential to prevent pores & cracks.
Redry electrodes at 250°-300°C for 1-2 hours & transfer them to a holding oven maintained at 70°-80°C.
Use short arc to the extent possible.
Stringer beads are to be preferred but weaving, when necessary, be restricted to maximum 2½ times the core wire diameter.
In order to avoid crater crack, fill up crater properly & draw the arc away to the side.
Use minimum amperage consistent with proper fusion, so as to control dilution, especially in buttering of alloy steels.
Preheating & interpass temperatures and PWHT is determined by the class of base materials.