The capacity of material to be welded under the imposed fabrication conditions into a specific, suitably designed structure and to perform satisfactorily in the intended service.

The capacity of certain metals and their alloys to be fabricated by welding into structures suitable for the intended service requirements. Various residual, or excessive, elements and inclusions may prohibit the formation of sound welds.

measurement that describes the relative ability of an alloy to be welded to another like product. The measurement also describes a specific set of conditions and requirements the completed weldment must meet.

Ability of a material to be fused successfully without special processing.

The weldability of a material refers to its ability to be welded. Many metals and thermoplastics can be welded, but some are easier to weld than others. It greatly influences weld quality and is an important factor in choosing which welding process to use.