Invention Application
- Patent Title: Cold-Working Steel
- Patent Title (中): 冷作钢
-
Application No.: US12281609Application Date: 2007-04-12
-
Publication No.: US20090010795A1Publication Date: 2009-01-08
- Inventor: Magnus Tidesten , Lennart Jonson , Odd Sandberg
- Applicant: Magnus Tidesten , Lennart Jonson , Odd Sandberg
- Applicant Address: SE Hagfors
- Assignee: Uddeholm Tooling Aktiebolag
- Current Assignee: Uddeholm Tooling Aktiebolag
- Current Assignee Address: SE Hagfors
- Priority: SE0600841-1 20060413
- International Application: PCT/SE07/50239 WO 20070412
- Main IPC: C22C38/22
- IPC: C22C38/22 ; C22C38/26 ; C22C38/24 ; C22C38/60 ; B22F3/02 ; C21D8/00

Abstract:
The invention relates to a cold-working steel having a chemical composition, in % by weight, of 1.3-2.4 (C+N), whereof at least 0.5 C, 0.1-1.5 Si, 0.1-1.5 Mn, 4.0-5.5 Cr, 1.5-3.6 (Mo+W/2), but max 0.5 W, 4.8-6.3 (V+Nb/2), but max 2 Nb, and max 0.3 S, in which the content of (C+N) and of (V+Nb/2) are balanced in relation to each other such that the contents of these elements are within an area that is defined by the coordinates A, B, C, D, A in the system of coordinates in FIG. 11, where the coordinates of [(C+N), (V+Nb/2)] for these points are A: [1.38, 4.8], B: [1.78, 4.8], C: [2.32, 6.3], D: [1.92, 6.3], and a balance essentially only iron and impurities at normal contents.
Information query