Atlas Tube uses the electric resistance welding (ERW) process to obtain a continuous longitudinal weld on our tubing. This process depends on a number of important factors to ensure a complete weld. The most important of these factors are:

• Strip width
• Strip preparation through the mill forming and fin pass stands
• Induction of current in the strip, concentration of the current, and resulting heating of the steel along the strip edges
• Presentation of the strip edges at the tube mill weld stand
• Squeeze-out of the resultant molten metal

This flyer provides a brief overview of the electric resistance welding process.

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