Search International and National Patent Collections

1. (WO2018182480) HOT WORK TOOL STEEL

Pub. No.:    WO/2018/182480    International Application No.:    PCT/SE2018/050213
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Thu Mar 08 00:59:59 CET 2018
IPC: C22C 38/24
C22C 38/02
C22C 38/04
C22C 38/12
C22C 38/18
C22C 38/22
Applicants: UDDEHOLMS AB
Inventors: EJNERMARK, Sebastian
Title: HOT WORK TOOL STEEL
Abstract:
The invention relates hot work tool steel. The steel comprises the following main components (in wt. %): C 0.27 -0.40, Si 0.10 -0.35, Mn 0.2 -1.0, Cr 4.0 -6.0, Mo 1.0 -3, V 0.4 -0.9, balance optional elements, iron and impurities, wherein the steel in the annealed condition has a microstructure comprising: a) at least 75 vol. % packets of tempered martensite and/or bainite and b) 1-20 vol. % of hard phase including carbides, nitrides and carbo-nitrides.