ClassID:

118808

C21C5/005 - CPC Classification

Classification description:

Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel Manufacture of stainless steel

Recent Application in this class:
#1
20240035110
2024-02-01

Method for manufacturing a low-carbon nitrogen-containing austenitic stainless steel bar

#2
20230339006
2023-10-26

High performance alloy for corrosion resistance

#3
20230304118
2023-09-28

Method for Preparing Stainless Steel Seamless Tube with Ultra-High Cleanliness for Integrated Circuit and IC Industry Preparation Device, and Stainless Steel Seamless Tube

#4
20230059069
2023-02-23

High strength stainless steel material

#5
20220297172
2022-09-22

High performance alloy for corrosion resistance

#6
20220195546
2022-06-23

Method for producing chromium-containing molten iron

#7
20210310105
2021-10-07

TI- AND NB-ADDED FERRITIC STAINLESS STEEL EXCELLENT IN LOW-TEMPERATURE TOUGHNESS OF WELDS

#8
20200291497
2020-09-17

METHOD OF MAKING STAINLESS STEEL

#9
20190390310
2019-12-26

Ferritic-austenitic duplex stainless steel sheet

#10
20180127858
2018-05-10

MARTENSITIC STAINLESS STEEL, METHOD FOR THE PRODUCTION OF A SEMI-FINISHED PRODUCT FROM SAID STEEL, AND CUTTING TOOL PRODUCED FROM THE SEMI-FINISHED PRODUCT

#11
20170175212
2017-06-22

ARGON OXYGEN DECARBURIZATION REFINING METHOD FOR MOLTEN AUSTENITIC STAINLESS STEEL

#12
20160168655
2016-06-16

Method for manufacturing duplex stainless steel sheet having reduced inclusions

#13
20150247213
2015-09-03

Metal recovery method

#14
20150240321
2015-08-27

Advanced technology for iron-chrome alloys production and related plant

#15
20150211817
2015-07-30

Heat exchanger

#16
20140119976
2014-05-01

Zinc-modified ferritic stainless steels and manufacturing method thereof

#17
20140116202
2014-05-01

METHOD FOR IMPROVING THE REDUCTION DEGREE IN THE SMELTING OF FERROALLOY

#18
20120175828
2012-07-12

Method and device for producing pig-iron based stainless steel without using a supply of electrical energy

#19
20120138253
2012-06-07

ADVANCED TECHNOLOGY FOR IRON-CHROME ALLOYS PRODUCTION AND RELATED PLANT

#20
20120055288
2012-03-08

Method of Making a High Strength, High Toughness, Fatigue Resistant, Precipitation Hardenable Stainless Steel and Product Made Therefrom

#21
20110227263
2011-09-22

Method and device for producing stainless steel without using a supply of electrical energy, based on pig-iron that has been pre-treated in a DDD installation

#22
20110186184
2011-08-04

Ferritic stainless steel casting and sheet and method for producing the same

#23
20100288078
2010-11-18

Process for producing stainless steel using direct reduction furnaces for ferrochrome and ferronickel on the primary side of a converter

#24
20100278684
2010-11-04

PROCESS FOR MANUFACTURING STAINLESS STEEL CONTAINING FINE CARBONITRIDES, AND PRODUCT OBTAINED FROM THIS PROCESS

#25
20100024600
2010-02-04

Method and device for producing stainless steel without using a supply of electrical energy, based on pig-iron that has been pre-treated in a DDD installation

#26
20100011909
2010-01-21

Method and device for producing pig-iron based stainless steel without using a supply of electrical energy

#27
20090283182
2009-11-19

Method of Making a High Strength, High Toughness, Fatigue Resistant, Precipitation Hardenable Stainless Steel and Product Made Therefrom

#28
20090098007
2009-04-16

Duplex stainless steel

#29
20090031860
2009-02-05

Production of stainless steel of AISI 4xx grade ferritic steel in an AOD converter

#30
20080142123
2008-06-19

Ferritic stainless steel casting and sheet and method for producing the same

#31
20070227307
2007-10-04

Method for reducing Cr in metallurgical slags containing Cr

#32
20070152386
2007-07-05

Refining method and refining apparatus for chromium-contained molten steel

#33
20070079667
2007-04-12

METHOD OF PRODUCING STAINLESS STEEL BY RE-USING WASTE MATERIAL OF STAINLESS STEEL PRODUCING PROCESS

#34
20060278042
2006-12-14

Method of producing stainless steel by re-using waste material of stainless steel producing process

#35
20060060028
2006-03-23

Refining ferroalloys

#36
20050166710
2005-08-04

Method for treating alloyed carbonic iron smelts used for the production of steel