Community Research and Development Information Service - CORDIS

Abstract

Scrap is an important raw material applied in the production of tool steels by electric arc furnace metallurgy. Its composition and especially its contents of residual elements can have a crucial influence on the properties of the steels produced. Resuming the results of a former ECSC-sponsored research project, the working properties and the properties important for the use of the steel as a tool were investigated using thirteen heats of hot-work tool steel X38CrMoV5-1 (material-no. 1.2343) that contained different contents of the residuals copper, nickel, phosphorus and aluminium. The properties investigated comprised of continuous castability, hot workability as well as mechanical-technological properties at room temperature and at elevated temperature. The elements phosphorus with a content of up to 0,021 mass.-% and aluminium with contents of up to 0,025 mass.-% were closely associated with a deterioration of ductility and toughness at room temperature as well as at elevated temperature. Likewise hot workability was impaired. Copper contents of up to 0,38 mass.-% reduced the time-dependent properties and ductility .Of the residuals investigated, nickel with a content of up to 0,49 mass.-% was the least harmful. Considering the custom-designed requirements on hot-work tool steels maximum upper limits are suggested for the elements investigated.

Additional information

Authors: ERNST C, Edelstahl Witten-Krefeld GmbH, Witten (DE);WEWERS B, Edelstahl Witten-Krefeld GmbH, Witten (DE);IDOYAGA Z, Sidenor I+D, Basauri (ES);DETERDING D, Kind & Co Edelstahlwerk, Wiehl (DE);TRUBITZ P, TU Bergakademie Freiberg, Aachen (DE);PANT M, RWTH Aachen, Freiberg (DE);SCHWEIGER H, Böhler Edelstahl GmbH, Kaplenberg (AT);LÖFFLER D, Schmidt + Clemens GmbH + Co., Lindlar (DE)
Bibliographic Reference: EUR 20906 EN (2003), 224pp. Euro: 35
Availability: EUR-OP reference: KI-NA-20906-EN-S Available from EUR-OP sales agents URL: http://publications.eu/general/en/publications_en.htm
ISBN: ISBN: 92-894-6590-5
Record Number: 200417265 / Last updated on: 2004-01-05
Category: PUBLICATION
Original language: en
Available languages: en