What is the stainless cooking surface in All-Clad cookware made of and how is it tested to ensure quality?
1. The cooking surface of All-Clad stainless cookware is made from a proprietary formulation of 304 grade stainless steel specially adapted to meet All-Clad specifications regarding grain size, texture, alloy content, and other physical properties that make All-Clad the finest cookware. Stainless steel came into commercial use about 100 years ago. At that time, metal manufacturers had learned that the addition of chrome in the range of 18% and the addition of nickel in the range of 10% yielded an alloy that was very strong, ductile and corrosion resistant. This class of materials hence became known generically as “18-10” steel. By the 1920’s, the term “stainless steel” had evolved and this class of materials had become more well understood and was subdivided into defined alloys, some with higher alloy content, and some with lower alloy content. This was generally determined by the application of the metal and cost constraints. The higher the alloy percentages, the higher the cost of th
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