Factors on which weldability depends:
1. Material grade, material thickness, design, weld property requirement
2. Equipment type, edge preparation design
3. Tip / work piece distance, electrode angle
4. Current, arc voltage, welding speed
5. Availability of equipment
6. Repetitiveness of the operation
7. Quality requirements (base metal penetration, consistency, etc.)
8. Location of work
9. Materials to be joined i.e. base metal composition
10. Appearance of the finished product
11. Size of the parts to be joined
12. Time available for work
13. Skill experience of workers
14. Cost of materials
15. Code or specification requirements
16. Mechanical properties desired in joints