Tensile test elongation is not the best way to assess formability of AHSS steel. In a tensile test, you are averaging deformation over a 2 inch (or more) gauge length. SSAB just published a good article on this, and coincidentally, I’ve written about this topic in an article to be published in an upcoming issue of MetalForming Magazine.
Read more from SSAB in their article, The Forming Myth
-Danny Schaeffler, www.EQSgroup.com and www.Learning4M.com
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