【摘要】 近年来日本高周波钢业株式会社，开发了新的焊管轧辊材料，以微细钢ＫＤ１１Ｖ替代原ＳＫＤ１１材料用作焊管轧辊，并开发了微细钢ＫＤＡ用作挤压辊材料。对这些材料的物理性能、化学成分、热处理工艺及机械性能等都作了详细介绍。更多还原

【Abstract】 In recent years,Japan developed new naterials for the roll of welded steel pipe mill. The micro-fine steel KDllV is used to make the roll instead of the original steel SKDll,and the developed micro-fine steel KDA is used as the squeezing-roll material.It is introduced in detail that physical properties, chemical composition, technology of heat-treatment and mechanical properties about those developed materials.更多还原