公开(公告)号：US20230212721A1

公开(公告)日：2023-07-06

申请号：US18174373

申请日：2023-02-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  Shenzhen ElementPlus Material Technology Co., Ltd.

Inventor： Xiaoming Xu ,  Ming Cai ,  Wei Yuan ,  Yonghu Lv ,  Wei Mo

IPC: C22C38/52 ,  C22C38/48 ,  C22C38/44 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  H01F1/147

CPC classification number: C22C38/52 ,  C22C38/48 ,  C22C38/44 ,  C22C38/04 ,  C22C38/02 ,  C22C38/002 ,  H01F1/14708 ,  B22F3/225

Abstract: A steel, a steel mechanical part, an electronic device, and a preparation method for a steel mechanical part are provided. The steel includes components of the following mass percentages: chromium: 7% to 11%, nickel: 2% to 7.5%, cobalt: 6% to 15%, molybdenum: 4% to 7%, oxygen: a trace to 0.4%, carbon: a trace to 0.35%, and iron: 50% to 80%. The steel provided in this application has relatively high mechanical strength and is not easily deformed, and therefore a risk of fracture caused when an electronic device using the steel falls off from a height is reduced.