Weldability of Metals
Weldability of Metals and Their Alloys The weldability , also referred to as joinability , of a material represents it's ability to be welded. Several metals and thermoplastics can be welded, however, many are easier to weld as compared to others. A material's weldability is required to determine the welding technique and also to compare and contrast the final weld quality to other materials. Weldability is usually complicated to define quantitatively, consequently the majority of standards define it qualitatively. For instance, the International Organisation for Standardisation (ISO) defines weldability in ISO standard 581-1980 as: "Metallic material is considered to be susceptible to welding to an established extent with given processes and for given purposes when welding provides metal integrity by a corresponding technological process for welded parts to meet technical requirements as to their own qualities as well as to their influence on a structure they form....