Forming methods are discussed and include cutting, sawing, shearing, plasma cutting, blanking, punching, piercing, bending, drawing, spinning and tube bending. A minimum bend radius of 2 times tube diameter is quoted as a guide. Extra force is required for these operations when working with austenitic stainless steels due to their tendency to work harden.
SSAS6.01-Forming Fabrication Techniques for Stainless Steel