... Stainless Steels 9. Steels for Special Use Although the above list at first glance looks rather straightforward, there were difficult decisions regarding the steel comparisons within each chapter. ... application (see ASTM Dictionary of Engineering Science & Technology, 9th edition). In contrast, ISO 2604, Steel Products for Pressure Purposes - Quality Requirements - Part II: Wrought ... of national European and UK standards are being withdrawn and superseded by EN standards. This transition, from old to new standards, has made it increasingly more difficult to compare the superseded...