Welding Galvanized Steel Safely

Welding Allied’s galvanized steel tubing is a very achievable operation if three key points are observed to assure consistent quality results.

• Use sound welding practices and procedures
• Practice proper safety rules
• Adopt good weld restoration methods

Use of Sound Welding Practice

Tubular steel should be welded so as to develop the adequate strength at all connections between tubes; accordingly, the required weld configuration and size should be specified on the drawings by the designer. When tubes are butt welded (i.e., joined end-to-end), the weld should penetrate through the full tube wall thickness and reinforcement should not exceed 3/32 inches (2.5 mm). When the joint design is a tee, corner or fillet weld, the size and length required should be shown on the drawing. For the convenience of the designer, the following weld sizes will provide welds that have a throat dimension that is at least equal to the thickness of the tube being joined. When tubes of different wall thicknesses are joined, the minimum fillet weld size can be based on the thinner of the members.