ClassID:

119000

C21D8/021 - CPC Classification

Classification description:

Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab

Sub-classes:
Recent Application in this class:
#1
20260132493
2026-05-14

PLATED STEEL SHEET

#2
20260098327
2026-04-09

COATED ULTRAHIGH-STRENGTH STEEL WITH LOW SPOT WELDING CRACK SENSITIVITY AND MANUFACTURING METHOD THEREFOR

#3
20260049382
2026-02-19

STEEL SHEET

#4
20250389007
2025-12-25

120-KG-GRADE ULTRAHIGH-STRENGTH GALVANIZED STEEL SHEET AND MANUFACTURING METHOD THEREFOR

#5
20250388990
2025-12-25

HOT-ROLLED COMPLEX-PHASE STEEL WITH 800-MPA-GRADE TENSILE STRENGTH AND MANUFACTURING METHOD THEREFOR

#6
20250346984
2025-11-13

100 KG-GRADE ULTRAHIGH-STRENGTH GALVANIZED STEEL SHEET AND MANUFACTURING METHOD THEREFOR

#7
20250296141
2025-09-25

CONTINUOUSLY CAST SLAB AND METHOD FOR PRODUCING THE SAME

#8
20250270666
2025-08-28

HIGH-PLASTICITY 1500-MPA-GRADE ULTRAHIGH-STRENGTH STEEL AND PREPARATION METHOD THEREFOR

#9
20250163555
2025-05-22

STEEL PLATE FOR HIGH HEAT INPUT WELDING AND MANUFACTURING METHOD THEREFOR

#10
20250101560
2025-03-27

AUSTENITIC STAINLESS STEEL AND HYDROGEN RESISTANT MEMBER

#11
20250101540
2025-03-27

TIN PLATE AND MANUFACTURING METHOD THEREFOR

#12
20250092484
2025-03-20

PLATED STEEL SHEET HAVING EXCELLENT STRENGTH, FORMABILITY AND SURFACE QUALITY, AND MANUFACTURING METHOD THEREFOR

#13
20250084518
2025-03-13

HOT STAMPED BODY

#14
20250043401
2025-02-06

AUSTENITIC STEEL HAVING EXCELLENT EXTREME LOW TEMPERATURE TOUGHNESS IN HEAT-AFFECTED ZONE AND METHOD FOR MANUFACTURING SAME

#15
20250043378
2025-02-06

HIGH-STRENGTH STEEL WITH EXCELLENT NEUTRAL AQUEOUS MEDIUM CORROSION RESISTANCE AS WELL AS PREPARATION METHOD AND APPLICATION THEREOF

#16
20250043375
2025-02-06

NI-FREE MICRO-ALLOYED HIGH-STRENGTH STEEL WITH ULTRA-LOW TEMPERATURE TOUGHNESS, AND PREPARATION METHOD THEREOF

#17
20250043374
2025-02-06

SEAWATER CORROSION-RESISTANT MARINE ENGINEERING STEEL AND PREPARATION METHOD THEREOF

#18
20250034681
2025-01-30

LOW-ALLOYED MAGNESIUM ALLOY WITH HIGH DUCTILITY AND HIGH DAMPING CAPACITIES AT ROOM TEMPERATURE AND PREPARATION METHOD THEREOF

#19
20250019784
2025-01-16

HEATING METHOD OF A METALLIC PRODUCT

#20
20250003022
2025-01-02

COLD ROLLED STEEL SHEET AND MANUFACTURING METHOD THEREFOR

#21
20250003021
2025-01-02

STEEL SHEET, MEMBER, METHOD OF PRODUCING STEEL SHEET, AND METHOD OF PRODUCING MEMBER

#22
20240425960
2024-12-26

STEEL SHEET AND PRESS-FORMED ARTICLE

#23
20240384381
2024-11-21

HOT-ROLLED STEEL SHEET

#24
20240376561
2024-11-14

PRECIPITATION HARDENING MARTENSITIC STAINLESS STEEL HAVING EXCELLENT WELDABILITY, AND METHOD FOR PRODUCING THE SAME

#25
20240352565
2024-10-24

OUTER PLATE COMPONENT FOR AUTOMOBILE, BLANK SHEET, MANUFACTURING METHOD FOR BLANK SHEET, AND MANUFACTURING FACILITY FOR BLANK SHEET

#26
20240278298
2024-08-22

System and method for the continuous casting and subsequent flat rolling of a steel strip

#27
20240271261
2024-08-15

STEEL SHEET

#28
20240254577
2024-08-01

SPHEROIDIZING-ANNEALED STEEL FOR BALL SCREW HAVING HIGH STRENGTH AND RESISTANCE TO LOW TEMPERATURES AND MANUFACTURING METHOD THEREOF

#29
20240158880
2024-05-16

MICRO-MOLYBDENUM-TYPE WEATHERING BRIDGE STEEL PLATE AND PREPARATION METHOD THEREOF

#30
20240141467
2024-05-02

STEEL SHEET AND WELDED JOINT

#31
20240141452
2024-05-02

HIGH-STRENGTH STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME

#32
20240124963
2024-04-18

STEEL SHEET

#33
20240117455
2024-04-11

A ZINC OR ZINC-ALLOY COATED STRIP OR STEEL WITH IMPROVED ZINC ADHESION

#34
20240100590
2024-03-28

CASTING-ROLLING INTEGRATED PLANT AND METHOD FOR PRODUCING A HOT STRIP WITH A FINAL THICKNESS < 1.2 MM ON THE CASTING-ROLLING INTEGRATED PLANT

#35
20240084427
2024-03-14

STEEL SHEET

#36
20240052449
2024-02-15

High strength steel sheet, impact absorbing member, and method for manufacturing high strength steel sheet

#37
20240043952
2024-02-08

Plated steel sheet having excellent strength, formability and surface property and method for manufacturing same

#38
20240011121
2024-01-11

PRODUCTION METHOD FOR NON-ORIENTED SILICON STEEL AND NON-ORIENTED SILICON STEEL

#39
20240002968
2024-01-04

ULTRA-HIGH STRENGTH COLD ROLLED STEEL SHEET HAVING EXCELLENT BENDABILITY, AND METHOD OF MANUFACTURING SAME

#40
20230416886
2023-12-28

HOT-ROLLED STEEL SHEET

#41
20230416885
2023-12-28

FERRITIC STAINLESS STEEL WITH IMPROVED STRENGTH, WORKABILITY, AND CORROSION RESISTANCE

#42
20230407430
2023-12-21

STEEL SHEET AND MANUFACTURING METHOD THEREOF

#43
20230407429
2023-12-21

Plated steel sheet having excellent strength, formability and surface quality, and manufacturing method therefor

#44
20230374636
2023-11-23

High Manganese Alloyed Steels For Amine Service

#45
20230374635
2023-11-23

High Manganese Alloyed Steels With Improved Cracking Resistance

#46
20220177994
2022-06-09

Steel sheet and method for producing same

#47
20220154302
2022-05-19

Steel sheet and production method for same

#48
20220090248
2022-03-24

Hot dip galvanized steel sheet and method for producing same

#49
20220090247
2022-03-24

Steel sheet, member, and methods for producing them

#50
20220056545
2022-02-24

STEEL, PRODUCT MADE OF SAID STEEL, AND MANUFACTURING METHOD THEREOF

#51
20220025491
2022-01-27

ULTRA-THICK STEEL EXCELLENT IN BRITTLE CRACK ARRESTABILITY AND MANUFACTURING METHOD THEREFOR

#52
20210395849
2021-12-23

High-strength low-carbon bainitic fire-resistant steel and preparation method thereof

#53
20210238703
2021-08-05

EDGE FORMABILITY IN METALLIC ALLOYS

#54
20210229206
2021-07-29

Welded advanced high strength steel

#55
20210130937
2021-05-06

GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREFOR

#56
20210108312
2021-04-15

Metal plate for manufacturing deposition mask, method for manufacturing metal plate, deposition mask and method for manufacturing deposition mask

#57
20210010117
2021-01-14

Forged part of bainitic steel and a method of manufacturing thereof

#58
20200385846
2020-12-10

Wear-resistant steel having excellent hardness and impact toughness, and method for producing same

#59
20200332397
2020-10-22

Steel sheet

#60
20200299801
2020-09-24

Hot-press forming part and method of manufacturing same

#61
20200263268
2020-08-20

High manganese steel for low temperature applications having excellent surface quality and a manufacturing method thereof

#62
20200199719
2020-06-25

Hot rolled steel sheet and method for producing same

#63
20200190641
2020-06-18

LOW PHOSPHORUS, ZIRCONIUM MICRO-ALLOYED, FRACTURE RESISTANT STEEL ALLOYS

#64
20200190615
2020-06-18

Steel member and production method therefor

#65
20200080179
2020-03-12

High-strength steel having excellent fracture initiation resistance and fracture propagation arrestability at low temperature and method of manufacturing the same

#66
20200080175
2020-03-12

Non-oriented electrical steel sheet and manufacturing method therefor

#67
20190352731
2019-11-21

Edge formability in metallic alloys

#68
20190249268
2019-08-15

Steel sheet for hot press and method of manufacturing same, and hot-press forming part and method of manufacturing same

#69
20190233915
2019-08-01

QUENCHED STEEL SHEET HAVING EXCELLENT STRENGTH AND DUCTILITY AND METHOD FOR MANUFACTURING SAME

#70
20190226068
2019-07-25

PROCESS FOR MANUFACTURING HOT-ROLLED PLATE, STRIP OR COIL MADE OF DUPLEX STAINLESS STEEL

#71
20190194775
2019-06-27

Steel sheet and method for producing the same

#72
20190177811
2019-06-13

1500 MPa grade press hardening steel by medium thin slab casting and direct rolling and method for producing the same

#73
20190106765
2019-04-11

VERY HIGH-STRENGTH, COLD-ROLLED, DUAL STEEL SHEETS

#74
20190093204
2019-03-28

High-strength steel having superior brittle crack arrestability, and production method therefor

#75
20190093193
2019-03-28

Weathering steel

#76
20190084074
2019-03-21

Weldability improvements in advanced high strength steel

#77
20180363088
2018-12-20

Material for high strength steel sheets, hot rolled material for high strength steel sheets, hot-rolled and annealed material for high strength steel sheets, high strength steel sheet, high strength hot-dip-coated steel sheet, high strength electroplated steel sheet, and method of manufacturing same

#78
20180269496
2018-09-20

Carbon separator for solid polymer fuel cell, solid polymer fuel cell, and solid polymer fuel cell stack

#79
20180245174
2018-08-30

Method for homogenizing steel compositions

#80
20180087123
2018-03-29

Steel, product made of said steel, and manufacturing method thereof

#81
20170333986
2017-11-23

Steel plate for producing light structures and method for producing said plate

#82
20170297092
2017-10-19

Variable thickness continuous casting for tailor rolling

#83
20170283896
2017-10-05

Low-temperature high-strength-and-ductility high manganese steel, and high manganese steel plate and high manganese steel tube manufacturing process

#84
20170283894
2017-10-05

FERRITIC STAINLESS STEEL HAVING EXCELLENT DUCTILITY AND METHOD FOR MANUFACTURING SAME

#85
20170240992
2017-08-24

Weathering steel

#86
20170211162
2017-07-27

Method for producing a metal product

#87
20170166988
2017-06-15

Edge formability in metallic alloys

#88
20170114425
2017-04-27

Steel plate having excellent acid dew point corrosion resistance, method of production, and exhaust gas channel constituent member

#89
20170050414
2017-02-23

Methods for the production of clad steel products

#90
20170022582
2017-01-26

High-strength cold-rolled steel sheet with excellent material homogeneity and production method therefor

#91
20170002437
2017-01-05

Titanium-free alloy

#92
20160369365
2016-12-22

Martensitic steel and method for producing same

#93
20160348207
2016-12-01

Quenched steel sheet having excellent strength and ductility

#94
20160304981
2016-10-20

Martensitic steel with delayed fracture resistance and manufacturing method

#95
20160303635
2016-10-20

Edge formability in metallic alloys

#96
20160222486
2016-08-04

Manufacturing method for very high-strength, cold-rolled, dual-phase steel sheets

#97
20160208358
2016-07-21

NON QUENCHED AND TEMPERED STEEL AND MANUFACTURING PROCESS THEREOF

#98
20160208357
2016-07-21

PROCESS FOR PRODUCING NON QUENCHED AND TEMPERED STEEL

#99
20160208356
2016-07-21

NON QUENCHED AND TEMPERED STEEL AND MANUFACTURING PROCESS THEREOF

#100
20160160330
2016-06-09

Superstrength cold-rolled weathering steel sheet and method of manufacturing same

#101
20160138125
2016-05-19

Abrasion-resistant steel material excellent in fatigue characteristics and method for manufacturing same

#102
20160076118
2016-03-17

Abrasion resistant steel plate having excellent low-temperature toughness and method for manufacturing the same

#103
20160053354
2016-02-25

Steel plate for thick-walled steel pipe, method for manufacturing the same, and thick-walled high-strength steel pipe

#104
20160017466
2016-01-21

Hot-rolled steel sheet and method for producing the same

#105
20160010192
2016-01-14

Thick, tough, high tensile strength steel plate and production method therefor

#106
20160010191
2016-01-14

High-hardness low-alloy wear-resistant steel sheet and method of manufacturing the same

#107
20150361531
2015-12-17

High strength steel plate and manufacturing method thereof

#108
20150354041
2015-12-10

Highly corrosion-resistant, high strength, A1-containing weathering steel plate and process of manufacturing same

#109
20150337416
2015-11-26

High-formability and super-strength cold-rolled steel sheet

#110
20150329950
2015-11-19

High-strength hot-rolled steel sheet having excellent baking hardenability and low temperature toughness with maximum tensile strength of 980 MPa or more

#111
20150247224
2015-09-03

TiC-PARTICLE-REINFORCED HIGH STRENGTH AND LOW DENSITY STEEL PRODUCTS WITH IMPROVED E-MODULUS AND METHOD FOR PRODUCING SAID PRODUCT

#112
20150243418
2015-08-27

Hot rolled silicon steel producing method

#113
20150225829
2015-08-13

Hot-dip galvanized steel sheet and manufacturing method of the same

#114
20150211098
2015-07-30

High-strength, high-toughness, wear-resistant steel plate and manufacturing method thereof

#115
20150191807
2015-07-09

Process for producing hot-rolled steel strip

#116
20150167135
2015-06-18

DUPLEX STAINLESS STEEL

#117
20150129093
2015-05-14

Methods for processing metal alloys

#118
20150118518
2015-04-30

Steel sheet for electroplating, electroplated steel sheet, and methods for producing the same

#119
20150030882
2015-01-29

Steel plate for producing light structures and method for producing said plate

#120
20140318672
2014-10-30

High strength hot rolled steel sheet for line pipe use excellent in low temperature toughness and ductile fracture arrest performance and method of production of same

#121
20140261915
2014-09-18

Line pipe steels and process of manufacturing

#122
20140116578
2014-05-01

High-strength and high-toughness steel plate with yield strength of 700 MPa and method of manufacturing the same

#123
20140007990
2014-01-09

Steel sheet for aerosol can bottom having high pressure resistance and excellent workability and method for producing same

#124
20120321504
2012-12-20

Air hardenable shock-resistant steel alloys, methods of making the alloys, and articles including the alloys

#125
20120160377
2012-06-28

METHOD AND DEVICE FOR PRODUCING A MICROALLOYED STEEL, IN PARTICULAR A PIPE STEEL

#126
20120128997
2012-05-24

Coil material and method for manufacturing the same

#127
20120118443
2012-05-17

Non-heat treated rolled steel and drawn wire rod with excellent toughness, and method for manufacturing the same

#128
20110226391
2011-09-22

C+N AUSTENITIC STAINLESS STEEL HAVING HIGH STRENGTH AND EXCELLENT CORROSION RESISTANCE, AND FABRICATION METHOD THEREOF

#129
20110186184
2011-08-04

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

#130
20110168300
2011-07-14

MANUFACTURING METHOD FOR VERY HIGH-STRENGTH COLD-ROLLED DUAL-PHASE STEEL SHEETS AND SHEETS SO PRODUCED

#131
20110129381
2011-06-02

High-tensile steel with excellent weldability and toughness and with tensile strength of 550 MPa class or more and method of production of the same

#132
20110114229
2011-05-19

Ausferritic Wear-Resistant Steel Castings

#133
20110079328
2011-04-07

HIGH STRENGTH HOT ROLLED STEEL SHEET FOR LINE PIPE USE EXCELLENT IN LOW TEMPERATURE TOUGHNESS AND DUCTILE FRACTURE ARREST PERFORMANCE AND METHOD OF PRODUCTION OF SAME

#134
20100300585
2010-12-02

Low-density steel having good drawability

#135
20100116382
2010-05-13

AUSTENITIC STAINLESS STEEL EXCELLENT IN INTERGRANULAR CORROSION RESISTANCE AND STRESS CORROSION CRACKING RESISTANCE, AND METHOD FOR PRODUCING AUSTENITIC STAINLESS STEEL MATERIAL

#136
20100108203
2010-05-06

Ultra-High Strength Stainless Alloy Strip, a Method of Making Same, and a Method of Using Same for Making a Golf Club Head

#137
20100084054
2010-04-08

High strength hot rolled steel products for line-pipes excellent in low temperature toughness and production method of the same

#138
20100065168
2010-03-18

Fire resistant steel excellent in high temperature strength, toughness, and reheating embrittlement resistance and process for production of the same

#139
20100003535
2010-01-07

High strength thick welded steel pipe for line pipe superior in low temperature toughness and method of production of the same

#140
20100000636
2010-01-07

DUPLEX STAINLESS STEEL

#141
20090291014
2009-11-26

High strength military steel

#142
20090291013
2009-11-26

Method of making a low cost, high strength, high toughness, martensitic steel

#143
20090260728
2009-10-22

Method and installation for producing hot-rolled strip from austenitic stainless steels

#144
20090053097
2009-02-26

Fire-resistant steel material superior in HAZ toughness of welded joint and method of production of same

#145
20080279713
2008-11-13

HIGH STRENGTH WEATHERING STEEL AND METHOD FOR PRODUCING THE SAME

#146
20080164003
2008-07-10

Method and Installation for Producing Light Gauge Steel with a High Manganese Content

#147
20080142123
2008-06-19

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

#148
20080110592
2008-05-15

METHOD FOR PRODUCING 700 MPA HIGH YIELD STRENGTH WEATHERING STEEL

#149
20080000559
2008-01-03

Method and installation for producing hot-rolled strip from austenitic stainless steels

#150
20070193666
2007-08-23

High Strength Dual Phase Steel With Low Yield Ratio, High Toughness and Superior Weldability

#151
20070110610
2007-05-17

Hot work tool steel and mold member excellent resistance to melting loss

#152
20050236078
2005-10-27

Steel sheet for vitreous enameling and production method

#153
20050173030
2005-08-11

Method for manufacturing steel plate having superior toughness in weld heat-affected zone

#154
20050072499
2005-04-07

Method and installation for producing a hot rolled strip from austenitic rust-resistant steels

#155
20050000606
2005-01-06

Method for manufacturing a steel sheet