ClassID:

119028

C21D8/0457 - CPC Classification

Classification description:

Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment with diffusion of elements, e.g. decarburising, nitriding

Recent Application in this class:
#1
20250011893
2025-01-09

STEEL SHEET HAVING A TWO-LAYER CRYSTALLIZATION STRUCTURE AND PROCESS FOR PRODUCING SUCH A STEEL SHEET

#2
20230175092
2023-06-08

STEEL SHEET AND METHOD OF MANUFACTURING A STEEL SHEET FOR PACKAGING

#3
20200407833
2020-12-31

Zinc-plated steel sheet for hot stamping and production method therefor

#4
20190390295
2019-12-26

Hot pressed part and method of manufacturing same

#5
20190161821
2019-05-30

STEEL SHEET FOR HOT PRESSING, AND METHOD OF MANUFACTURING THE HOT-PRESSED STEEL SHEET MEMBER

#6
20190106759
2019-04-11

Steel sheet, coated steel sheet, method for producing hot-rolled steel sheet, method for producing full hard cold-rolled steel sheet, method for producing steel sheet, and method for producing coated steel sheet

#7
20180245174
2018-08-30

Method for homogenizing steel compositions

#8
20170253957
2017-09-07

Method for producing a nitrided packaging steel

#9
20170029915
2017-02-02

Hot-pressed steel sheet member

#10
20150211127
2015-07-30

Hot-pressed member

#11
20140342181
2014-11-20

Zinc-coated steel for press hardening applications and method of production

#12
20140216611
2014-08-07

Method for producing hot-pressed member

#13
20140216610
2014-08-07

Method for producing hot-pressed member

#14
20120325376
2012-12-27

High-strength cold-rolled steel sheet and method for producing the same

#15
20120321903
2012-12-20

Hot-pressed member

#16
20120305139
2012-12-06

PROCESS FOR COATING STEEL STRIPS AND COATED STEEL STRIP

#17
20120186707
2012-07-26

Method for manufacturing of high strength cold rolled steel sheet of excellent phosphatability

#18
20110315275
2011-12-29

Method of treating parts for kitchen utensils