公开(公告)号：US20200232078A1

公开(公告)日：2020-07-23

申请号：US16650604

申请日：2018-10-05

Applicant: Uddeholms AB

Inventor： Sebastian Ejnermark ,  Christos Oikonomou ,  Olof Tönnberg ,  Venkata Seshendra Karamchedu ,  Richard Oliver

IPC: C22C38/52 ,  C22C38/46 ,  C22C38/44 ,  C22C38/42 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D9/00 ,  C22C1/02 ,  C22C33/02 ,  B22F1/00 ,  B33Y70/00

Abstract: The invention is directed to a steel for making a hot working tool, the steel consists of in weight % (wt. %): C0.01-0.08 Si0.05-0.6  Mn0.1-0.8 Cr3.9-6.1 Ni1.0-3.0 Mo7.0-9.0 Co 9.0-12.5 Cu0.2-6.5 N0.01-0.15 Balance optional elements, impurities and Fe. The invention is also directed to pre-alloyed powders made from said alloy and AM articles produced from said powder.