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]
Releated References:
Welding Process and Letter Designations
Welding Stainless Steel to other Steel
Welding and Post Fabrication Cleaning for Construction and Architectural Application
Welded Stainless Steel Pipe
Post weld cleaning and finishing of stainless steel
Welding Stainless Steel to other Steel
Selection of Welding Consumables Filler
Polishing Polished Seamless Stainless Steel Pipe Tube
Stainless Steel Tubes Surface Roughness Review
Stainless Steel Bright Annealing/Annealed Tubes
China USA Surface Roughness Standard Comparison
Surface Roughness Conversion Chart of Stainless Steel Tube
Post weld cleaning and finishing of stainless steels
Stainless Steel Tube Surface Finish Types
Cleaning of Stainless Steel Tubes
Cleaning methods for stainless steel
Care and maintenance of stainless steel
British and American standards for tolerances, surface finish and testing of stainless steels
Stainless Steel Pipe Specifications
Stainless Steel Tube Dimension
Stainless Steel Properties Description
304/304L/304LN/304H tubing and pipe
Stainless Steel Pipes Sizes
Stainless Steel Cold Working Properties
Stainless Steel-ASTM-Material Grade-Standard
Seawater Resistance of Stainless Steel Tubes
ASTMA312/A213/A269/A511/A376/A789/A790 DIN17456/17458 JIS3459/3463 DNV Chemical Compostion
International Conversion Table For Stainless Steel
Select Stainless Steel Grade by Characteristics and Usage
Selection of Stainless Steels from Corrosion Resistance, Mechanical Physical Properties
Select Materials for Heat Exchanger Tubes with Substantial Pressure difference
Select Stainless Steel by high temperature condition refer table
Properties at Cryogenic Temperatures of Stainless Steel Tubes
The Effect of carbon on corrosion resistance-304 316 304L 316L
Comparison of grades 316/1.4401 and 316L/1.4404/1.4432 to 316Ti /1.4571
The difference between Stainless Steel Tubing and Cooper Tubing in Shell and Tube Heat Exchanger
Various elements on the performance of stainless steel and the impact and role of organizations
Physical properties of stainless steel and Carbon steel
Compared with the ferritic stainless steel, duplex stainless steel vulnerable
Compared with the austenitic stainless steel, duplex stainless steel strengths and vulnerable
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