Steel alloy, holders and holder details for plastic moulding tools, and tough hardened blanks for holders and holder details
US8808472B2 · kind B2 · utility
1Cited by
10References
29Claims
0Family size
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Key dates
| Filing date | Sep 13, 2006 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Sep 3, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A steel alloy suitable for holders and holder details for plastic molding tools contains in weight-%: 0.06-0.15 C, 0.07-0.22 N, wherein the total amount of C+N shall satisfy the condition, 0.16≦C+N≦0.26, 0.1-1.0 Si, 0.1-2.0 Mn, 12.5-14.5 Cr, 0.8-2.5 Ni, 0.1 1.5 Mo, optionally vanadium up to max. 0.7 V, optionally, in order to improve the machinability of the steel, one or more of the elements S, Ca and O in amounts up to max. 0.25 S, max. 0.01 (100 ppm) Ca, max. 0.01 (100 ppm) O, balance iron and unavoidable impurities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.