EP 3828293 A1 20210602 - CORROSION-RESISTANT MIRROR DIE STEEL AND MANUFACTURING METHOD THEREFOR
Title (en)
CORROSION-RESISTANT MIRROR DIE STEEL AND MANUFACTURING METHOD THEREFOR
Title (de)
KORROSIONSBESTÄNDIGES SPIEGELGESENKSTAHLBLECH UND VERFAHREN ZU SEINER HERSTELLUNG
Title (fr)
ACIER À MATRICE DE MIROIR RÉSISTANT À LA CORROSION ET PROCÉDÉ DE PRODUCTION CORRESPONDANT
Publication
Application
Priority
- CN 201810833317 A 20180726
- CN 2019097543 W 20190724
Abstract (en)
Corrosion-resistant mirror die steel and a manufacturing method therefor. The components of the die steel are: 0.35-0.45% of C, 12-15% of Cr, less than or equal to 0.05% of Co, 0.4-0.7% of Mn, 0.35-0.55% of Si, 0.08-0.20% of Mo, 0.10-0.30% of Ni, 0.08-0.30% of W, 0.10-0.30% of V, 0.01-0.05% of Ti, less than or equal to 0.020% of P, less than or equal to 0.012% of S, and the balance is Fe. The manufacturing method comprises: smelting to obtain liquid steel, casting a steel billet, annealing before forging, forging, annealing after forging, and thermal processing.
IPC 8 full level
C21D 1/18 (2006.01); C22C 38/50 (2006.01)
CPC (source: CN EP KR)
B22D 7/005 (2013.01 - EP); C21D 1/18 (2013.01 - CN KR); C21D 1/25 (2013.01 - EP); C21D 1/26 (2013.01 - CN EP KR); C21D 1/56 (2013.01 - EP); C21D 1/60 (2013.01 - EP); C21D 1/613 (2013.01 - EP); C21D 1/667 (2013.01 - EP); C21D 6/002 (2013.01 - EP); C21D 6/004 (2013.01 - CN KR); C21D 6/005 (2013.01 - CN KR); C21D 6/008 (2013.01 - CN KR); C21D 8/005 (2013.01 - EP); C21D 9/0068 (2013.01 - EP); C22B 9/18 (2013.01 - EP); C22C 38/02 (2013.01 - CN EP); C22C 38/04 (2013.01 - CN EP); C22C 38/40 (2013.01 - EP); C22C 38/44 (2013.01 - CN EP KR); C22C 38/46 (2013.01 - CN EP KR); C22C 38/50 (2013.01 - CN EP KR)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3828293 A1 20210602; EP 3828293 A4 20211222; CN 108866444 A 20181123; CN 108866444 B 20210126; KR 102562391 B1 20230801; KR 20210053290 A 20210511; UA 127856 C2 20240124; WO 2020020243 A1 20200130
DOCDB simple family (application)
EP 19840865 A 20190724; CN 201810833317 A 20180726; CN 2019097543 W 20190724; KR 20217005941 A 20190724; UA A202100919 A 20190724