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WIRES FOR WIRE WELDING

Storage and handling recommendation for Flux-cored Wires used in Gas-shielded Flux-cored Arc Welding and Self Shielded Flux-cored Arc Welding

Scope

Tubular cored wires on coil or spool for Flux-cored Arc Welding and Selfshielded Flux-cored Arc Welding. Applicable for all types: Packaged in plastic bag and outer carton.

Storage

Tubular cored wire, even when packed in the original undamaged cartons, requires controlled storing conditions to prevent excessive moisture contamination. Recommended storing conditions include: – temperature 15–25 °C, relative humidity max. 60%.

– temperature 25–35 °C, relative humidity max. 40%.

Cored wire, properly stored to prevent moisture contamination, can be stored for up to three years.

Handling

Self shield range, unbaked version: Coils and spool taken out of protective packaging may be exposed to normal on-board workshop conditions for maximum 2 weeks.

Gas shield range

Coils taken out of protective packaging may be exposed to normal on board workshop conditions for maximum of 48 hours. In all cases the products shall be protected against contamination of moisture, dirt and dust. During work stops exceeding more than 8 hours, the wire coils shall be stored under the conditions mentioned above in a plastic bag.

Only products on steel coil can be stored in a holding oven at 40–1OO °C for a maximum of 30 days.

Deteriorated products

Cored wire products that are rusty, have suffered from serious water- or moisture contamination, or have been exposed to atmospheric moisture contamination over long periods of time cannot be restored to their original condition and shall be discarded.

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