公开(公告)号：US11131012B2

公开(公告)日：2021-09-28

申请号：US16064699

申请日：2016-11-28

Applicant: Uddeholms AB

Inventor： Anna Medvedeva ,  Jerker Andersson ,  Rikard Robertsson ,  Cherin Nilsson ,  Sebastian Ejnermark

IPC: C22C38/24 ,  C21D6/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C33/02 ,  B33Y70/00 ,  B22F3/15 ,  B22F3/24 ,  B22F9/08 ,  C21D1/25 ,  C21D1/18 ,  C21D6/02

Abstract: The invention relates hot work tool steel. The steel comprises the following main components (in wt. %): C
0.27-0.38 Si
0.10-0.35 Mn
0.2-0.7 Cr
4.5-5.5 Mo
2.05-2.90 V
0.4-0.6 N
0.01-0.12 H
≤0.0004 S
≤0.0015 balance optional elements, iron and impurities.

公开(公告)号：US20230035760A1

公开(公告)日：2023-02-02

申请号：US17958637

申请日：2022-10-03

Applicant: UDDEHOLMS AB

Inventor： Venkata Seshendra Karamchedu ,  Anna Medvedeva ,  Christos Oikonomou ,  Jesper Erik Joachim Sparrevohn Vang ,  Petter Damm

IPC: C22C38/44 ,  B33Y70/00 ,  C23C4/067 ,  B22F3/105 ,  B22F3/115 ,  B22F3/15 ,  B22F3/20 ,  C22C33/02 ,  C22C33/04 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/54 ,  B22F1/052

Abstract: A pre-alloyed powder having a composition consisting of, in weight % (wt. %): C, 0.02-0.04; Si, 0.1-0.4; Mn, 0.1-0.5; Cr, 11-13; Ni, 7-10; Cr+Ni, 19-23; Mo, 1-25; Al, 1.4-2.0; N, 0.01-0.75. Optionally, the pre-alloyed powder contains: Cu, 0.05-2.5; B, 0.002-2.0; S, 0.01-0.25; Nb, 0.01 max; Ti, 2 max; Zr, 2, max; Ta, 2 max; Hf, 2 max; Y, 2 max; Ca, 0.0003-0.009; Mg, 0.01 max; O, 0.003-0.80; and REM, 0.2 max. Fe and impurities comprise the balance.

公开(公告)号：US20190003021A1

公开(公告)日：2019-01-03

申请号：US16064699

申请日：2016-11-28

Applicant: Uddeholms AB

Inventor： Anna Medvedeva ,  Jerker Andersson ,  Rikard Robertsson ,  Cherin Nilsson ,  Sebastian Ejnermark

IPC: C22C38/24 ,  C22C38/22 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D6/00 ,  B22F9/08 ,  B22F3/15 ,  B22F3/24 ,  B33Y70/00

Abstract: The invention relates hot work tool steel. The steel comprises the following main components (in wt. %): C0.27-0.38 Si0.10-0.35 Mn0.2-0.7 Cr4.5-5.5 Mo2.05-2.90 V0.4-0.6 N0.01-0.12 H≤0.0004 S≤0.0015 balance optional elements, iron and impurities.