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- SUPERTRODE A 22
SUPERTRODE A 22Repair - Joining Electrode
DESCRIPTION & APPLICATIONS :
Supertrode A22 is an AC-weldable rutile-coated electrode with an alloyed core, suitable for joining corrosion-proof, highly heat-proof, & non-scaling CrNi-steels which are subject to service temperatures upto 1200°C. The electrode is also suitable for joint welding Cr-, CrSi-, and CrAl steels and for cladding low alloy base metals. The weld metal alloy is highly hot-crack-proof & chemical corrosion resistant.
Keep temperature as low as possible during welding. Annealing to 250°C and post-weld tempering to 700°C is required on ferritic base materials.
Ideal for joining unknown grades of stainless to themselves and to carbon steels.
Supertrode A22 is mainly used in furnace-construction, for fittings and pipelines, heat exchangers, valves, canthol wire joining, kiln anchor joining…..
UNIQUE FEATURES :
- High alloy content allows use in high temperature applications for scale resistance up to 1200°C
- Extra low spatter emission minimizes clean-up. Extremely smooth-spatter and turbulence free arc transfer.
- Weld metal is non-magnetic.
- Short arc length, Ultra low heat.
- Fully austenitic structure.
- Highly resistant to hot-cracking & chemical corrosion.
KEY SPECIFICATIONS :
Mechanical Properties of Weld Metal (Typical) | ||||||
---|---|---|---|---|---|---|
Alloy Base | Yield Strength N/mm2(min) |
Tensile Strength N/mm2(min) |
Elongation A5(%)(min) |
Impact (J) (min) |
||
Cr, Ni, Mo | 410 | 580 | 37 | 70 J at 0°C |