公开(公告)号：US20190226059A1

公开(公告)日：2019-07-25

申请号：US16314240

申请日：2017-06-07

Applicant: UDDEHOLMS AB

Inventor： Petter DAMM ,  Lena RÅHLEN ,  Amanda FORSBERG ,  Victoria BERGQVIST ,  Riccardo ZANCHETTA

IPC: C22C38/02 ,  C22C38/58 ,  C22C38/44 ,  C22C38/04 ,  C22C38/06

Abstract: The invention relates to a steel for a tool holder. The steel comprises the following main components (in wt. %): C 0.07-0.13 Si 0.10-0.45 Mn 1.5-3.1 Cr 2.4-3.6 Ni 0.5-2.0 Mo 0.1-0.7 Al 0.001-0.06 S≤0.003 The steel has a bainitic microstructure comprising up to 20 volume % retained austenite and up to 20 volume % martensite.