详情

原文传递 HEAVY METAL

题名：	HEAVY METAL
正文语种：	eng
摘要：	SSAB (Swedish Steel) has done a terrific job of marketing its speciality steels such as Hardox and Domex; these have almost become generic names for abrasion-resistant and high-strength steel alloys. But other manufacturers also produce 'high-yield' steel alloys with similar properties to Domex, covered by standard BS EN 10149-2:2013 'Hot rolled flat products made of high yield strength steels for cold forming'. This defines a variety of alloys in terms of their yield strength (see box), ranging from S315MC (yield strength 315MPa) to S960MC (960MPa). Abrasion-resistant or AR steels, also known as wear plate, are also available from suppliers such as Tata Steels (with Valast 450) and Voestalpine (Durostat 450). There is considerable variety in this category, with SSAB alone producing at least ten different grades of Hardox: the very hardest is Hardox Extreme, which has a hardness of 57-63 on the Rockwell scale, about the same as a chisel! Other grades include acid-resistant and high-temperature types, which do not lose their wear-resistant properties even operating at 300-500℃.
出版年：	2021
期刊名称：	Transport engineer
期：	Jul.