Welding Post Fabrication Cleaning for Construction Architectural
This 12 page paper by Chris Baxter, Group Technical Market Support, AvestaPolarit Ltd. covers the issues of distortion during fabrication and welding, control of stainless steel welding processes and post fabrication cleaning. Buckling distortion can result from either poor design or welding practices. The key factors for good welding are clearly defined welding procedures (EN 1011 and EN 287 and EN 288 are mentioned), control of heat input, temperature control and cleanliness. Welding electrode selection and methods including TIG, MMA, FCA, plasma, submerged arc and stud welding are covered. Finally, the importance of careful heat tint removal (temper coloured areas) is discussed by either mechanical abrasion or chemical pickling cleaning methods is discussed. Although this establishes the corrosion resistance for the particular grade welded, care is needed with chemical pickling as it can change (dull) the aesthetic appearance of the surfaces.
Chris Baxter IOM paper.pdf [465.2kb]
Related References:
1. Welding Process and Letter Designations
2. Welding Stainless Steel to other Steel
3. Welding and Post Fabrication Cleaning for Construction and Architectural Application
4. Welded Stainless Steel Pipe
5. Post weld cleaning and finishing of stainless steel
6. Avoid PWHT Post Weld Heat Treatment
7. Fume Associated With Welding Stainless Steel
8. Avoiding Distortion During Welding Stainless Steel
9. Design Strength of Welded Connections
10. Processes for Welding Stainless Steel
11. Brazing Stainless Steel
12. Soldering Stainless Steel
13. Welding Stainless Steel
14. Selection of Welding Consumables Filler
15. Selection of Welding Consumable for Welding Stainless Steel
16. Filler Metals For Welding Stainless Steel
17. Schaeffler and Delong Diagrams for Predicting Ferrite Levels
18. Welding Properties of Stainless Steel
19. 308L 309L 316L 347 Filler Metal Introduction
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