ClassID:

119078

C21D9/08 - CPC Classification

Classification description:

Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes

Sub-classes:
Recent Application in this class:
#1
20260146310
2026-05-28

HOT-ROLLED STEEL SHEET, ELECTRIC RESISTANCE WELDED STEEL PIPE AND RECTANGULAR STEEL PIPE, AND LINE PIPE AND BUILDING STRUCTURE

#2
20260078458
2026-03-19

DUPLEX STAINLESS STEEL MATERIAL

#3
20260035773
2026-02-05

ECONOMICAL HYDRIGEN GAS TRANSPORTATION PIPELINE STEEL, AND PRODUCTION METHOD

#4
20250376752
2025-12-11

NITROGEN ASSISTED HARDENING OF AN ARTICLE

#5
20250327160
2025-10-23

DUPLEX STAINLESS STEEL MATERIAL

#6
20250327159
2025-10-23

AUSTENITIC STAINLESS ALLOY MATERIAL

#7
20250320574
2025-10-16

PREPARATION METHOD FOR WELDED AND EXTENDED SUPER DUPLEX STAINLESS STEEL SEAMLESS PIPE COIL FOR DEEP-SEA UMBILICAL CABLE

#8
20250253450
2025-08-07

ENCLOSURE FOR BATTERY CELL INCLUDING QUENCH HARDENED STEEL

#9
20250236939
2025-07-24

MARTENSITIC STAINLESS STEEL MATERIAL

#10
20250223678
2025-07-10

ELECTRIC RESISTANCE WELDED STEEL PIPE OR TUBE AND PRODUCTION METHOD THEREFOR

#11
20250215546
2025-07-03

MARTENSITIC STAINLESS STEEL MATERIAL

#12
20250197958
2025-06-19

METHOD FOR PRODUCING TUBULAR COATING-FREE PRESS-HARDENED STEEL

#13
20250179618
2025-06-05

STEEL MATERIAL

#14
20250154617
2025-05-15

STEEL PLATE FOR ADVANCED NUCLEAR POWER UNIT REACTOR CORE SHELL CYLINDER AND MANUFACTURING METHOD FOR STEEL PLATE

#15
20250066890
2025-02-27

OZONE CORROSION RESISTANT HIGH-STRENGTH TUBE AND MANUFACTURING METHOD THEREFOR

#16
20250051890
2025-02-13

HEAVY PLATE AND THERMOMECHANICAL TREATMENT METHOD FOR A STARTING MATERIAL FOR THE PRODUCTION OF THE HEAVY PLATE

#17
20250011906
2025-01-09

METHOD OF MANUFACTURING HOT ROLLED STEEL

#18
20240401177
2024-12-05

DUPLEX STAINLESS STEEL MATERIAL

#19
20240270042
2024-08-15

TUBULAR STABILIZER BAR FOR A VEHICLE CHASSIS, AND VEHICLE CHASSIS COMPRISING THE TUBULAR STABILIZER BAR

#20
20240261119
2024-08-08

Lumen Stent and Preform thereof, and Methods for Preparing the Lumen Stent and Preform thereof

#21
20240258001
2024-08-01

NANOCRYSTALLINE SOFT MAGNETIC ALLOY WITH HIGH MAGNETIC INDUCTION AND HIGH FREQUENCY AND PREPARATION METHOD THEREOF

#22
20240254609
2024-08-01

AUSTENITIC STAINLESS STEEL AND TUBE

#23
20240247351
2024-07-25

METHOD OF FORMING AND HEAT TREATING COILED TUBING

#24
20240229200
2024-07-11

ELECTRIC RESISTANCE WELDED STEEL PIPE AND METHOD FOR PRODUCING THE SAME

#25
20240141466
2024-05-02

DUPLEX STAINLESS STEEL AND FORMED OBJECT THEREOF

#26
20240141451
2024-05-02

HOT-STRETCH-REDUCED ELECTRIC RESISTANCE WELDED PIPE

#27
20240068064
2024-02-29

400 MPa CORROSION-RESISTANT STEEL BAR AND PRODUCTION METHOD THEREOF

#28
20240035135
2024-02-01

DUPLEX STAINLESS STEEL AND USE THEREOF

#29
20240011137
2024-01-11

STAINLESS STEEL BAR MATERIAL AND ELECTROMAGNETIC COMPONENT

#30
20240002967
2024-01-04

Thermal Processing Method for Niobium-Containing High-Alloy Austenitic Heat-Resistant Stainless Steel Bar

#31
20230416888
2023-12-28

Al plated welded pipe for hardening use and al plated hollow member and method for producing same

#32
20230366070
2023-11-16

STEEL MATERIAL SUITABLE FOR USE IN SOUR ENVIRONMENT

#33
20230340632
2023-10-26

STAINLESS STEEL SEAMLESS PIPE AND METHOD FOR MANUFACTURING SAME

#34
20230313354
2023-10-05

COBALT-CHROMIUM ALLOY MEMBER, METHOD OF PRODUCING THE SAME, AND MEDICAL OR AEROSPACE DEVICE

#35
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

#36
20230262913
2023-08-17

METHODS FOR FORMING ELECTRONIC DEVICE HOUSINGS

#37
20230243006
2023-08-03

DEHYDROGENATION METHOD FOR STEEL MATERIAL AND STEEL PRODUCT, AND PRODUCTION METHOD FOR STEEL MATERIAL AND STEEL PRODUCT

#38
20230212724
2023-07-06

Duplex stainless steel tube and welded joint

#39
20230212723
2023-07-06

DUPLEX STAINLESS STEEL SEAMLESS PIPE

#40
20230203631
2023-06-29

STEEL MATERIAL

#41
20230183830
2023-06-15

Heat treatment method for titanium-aluminum intermetallic and heat treatment device therefor

#42
20230182187
2023-06-15

Tube and a method of manufacturing a tube

#43
20230175107
2023-06-08

STEEL MATERIAL

#44
20230167520
2023-06-01

S32750 Austenitic Ferrite Super Duplex Stainless Steel Seamless Pipe for Deep Sea Manifold and Method for Preparing Same

#45
20230166010
2023-06-01

HIGH-NITROGEN NICKEL-FREE AUSTENITIC STAINLESS STEEL SEAMLESS THIN-WALLED TUBE, A HIGH-SAFETY NICKEL-FREE METAL DRUG-ELUTING VASCULAR STENT MANUFACTURED THEREFROM, AND MANUFACTURING METHODS THEREFOR

#46
20230151469
2023-05-18

DUAL-PHASE STAINLESS STEEL AND DUAL-PHASE STAINLESS STEEL SEAMLESS PIPE

#47
20230151450
2023-05-18

INTEGRATED WELDING AND THERMAL PROCESSING JOINING METHOD FOR CREEP STRENGTH ENHANCED FERRITIC STEELS

#48
20230137295
2023-05-04

STAINLESS STEEL SEAMLESS PIPE AND METHOD FOR MANUFACTURING STAINLESS STEEL SEAMLESS PIPE

#49
20230128437
2023-04-27

HIGH-STRENGTH STAINLESS STEEL SEAMLESS PIPE FOR OIL COUNTRY TUBULAR GOODS AND METHOD FOR MANUFACTURING SAME

#50
20230114537
2023-04-13

MARTENSITIC STAINLESS STEEL SEAMLESS PIPE

#51
20230097339
2023-03-30

STAINLESS STEEL PIPE AND METHOD FOR MANUFACTURING SAME

#52
20230090789
2023-03-23

STAINLESS STEEL SEAMLESS PIPE AND METHOD FOR MANUFACTURING SAME

#53
20230090536
2023-03-23

STAINLESS STEEL PIPE AND METHOD FOR MANUFACTURING SAME

#54
20230079323
2023-03-16

Electric resistance welded steel pipe or tube

#55
20230033540
2023-02-02

HIGH-STRENGTH SEAMLESS STAINLESS STEEL PIPE FOR OIL WELL

#56
20230023397
2023-01-26

High-strength seamless steel pipe and method for manufacturing same

#57
20220396856
2022-12-15

Hot-rolled steel sheet for electric resistance welded steel pipe and method for manufacturing the same, electric resistance welded steel pipe and method for manufacturing the same, line pipe, and building structure

#58
20220389552
2022-12-08

Steel compositions having improved anti-coking properties

#59
20220364211
2022-11-17

STAINLESS STEEL SEAMLESS PIPE AND METHOD FOR MANUFACTURING SAME

#60
20220341012
2022-10-27

Hot-rolled steel sheet having excellent impact resistance, steel pipe, member, and manufacturing methods therefor

#61
20220339688
2022-10-27

Tube and a method of manufacturing a tube

#62
20220339012
2022-10-27

Lumen stent and preform thereof, and methods for preparing the lumen stent and preform thereof

#63
20220314289
2022-10-06

Manufacturing Method for Zirconium Alloy Tubular Products

#64
20220282350
2022-09-08

AUSTENITIC STEEL ALLOY HAVING AN IMPROVED CORROSION RESISTANCE UNDER HIGH-TEMPERATURE LOADING AND METHOD FOR PRODUCING A TUBULAR BODY THEREFROM

#65
20220275468
2022-09-01

STEEL MATERIAL FOR A TORSIONALLY STRESSED COMPONENT, METHOD FOR PRODUCING A TORSIONALLY STRESSED COMPONENT FROM SAID STEEL MATERIAL, AND COMPONENT MADE THEREOF

#66
20220266650
2022-08-25

Stabilizer and method for manufacturing stabilizer

#67
20220228231
2022-07-21

Duplex stainless steel and method for manufacturing same, and duplex stainless steel pipe

#68
20220186331
2022-06-16

ELECTRIC RESISTANCE-WELDED STEEL TUBE FOR HOLLOW STABILIZER, HOLLOW STABILIZER, AND MANUFACTURING METHODS OF SAME

#69
20220170524
2022-06-02

Hollow spring and method of manufacturing the same

#70
20220112585
2022-04-14

DUPLEX STAINLESS STEEL AND FORMED OBJECT THEREOF

#71
20220106659
2022-04-07

DUPLEX STAINLESS STEEL, SEAMLESS STEEL PIPE OR TUBE, AND A METHOD OF MANUFACTURING THE DUPLEX STAINLESS STEEL

#72
20220090221
2022-03-24

Thermal Processing of Closed Shape Workpieces

#73
20220074029
2022-03-10

Hot rolled steel and a method of manufacturing thereof

#74
20220074008
2022-03-10

METHOD AND SYSTEM OF MANUFACTURING COILED TUBING

#75
20220064770
2022-03-03

STEEL MATERIAL FOR HIGH-PRESSURE HYDROGEN GAS ENVIRONMENT, STEEL STRUCTURE FOR HIGH-PRESSURE HYDROGEN GAS ENVIRONMENT, AND METHODS FOR PRODUCING STEEL MATERIAL FOR HIGH-PRESSURE HYDROGEN GAS ENVIRONMENT

#76
20220049333
2022-02-17

Austenitic stainless steel having excellent pipe-expandability and age cracking resistance

#77
20220040749
2022-02-10

COMPRESSIVE FORMING PROCESSES FOR ENHANCING COLLAPSE RESISTANCE IN METALLIC TUBULAR PRODUCTS

#78
20210324979
2021-10-21

Electric resistance welded steel pipe for torsion beam

#79
20210299796
2021-09-30

Device for preheating before welding and post-welding heat treatment of tank

#80
20210293359
2021-09-23

Work hardened welds and methods for same

#81
20210292879
2021-09-23

Superalloy seamless tube and preparation method thereof

#82
20210292865
2021-09-23

Fabrication method of tubular member

#83
20210292864
2021-09-23

Austenitic Alloy Pipe and Method for Producing Same

#84
20210285067
2021-09-16

MICROTREATMENT OF IRON-BASED ALLOY, APPARATUS AND METHOD THEREFOR AND ARTICLES RESULTING THEREFROM

#85
20210268862
2021-09-02

Electric-resistance-welded steel pipe for producing hollow stabilizer, hollow stabilizer, and method for producing same

#86
20210262054
2021-08-26

Shaped boron tubular structure support

#87
20210222278
2021-07-22

Method of heat treating an article

#88
20210198764
2021-07-01

Martensitic stainless steel seamless pipe for oil country tubular goods, and method for manufacturing same

#89
20210180148
2021-06-17

Lightweight door beam, composition thereof and method of manufacturing the same

#90
20210140726
2021-05-13

Air conditioner

#91
20210140569
2021-05-13

Ferritic stainless steel pipe having excellent salt tolerance in gap, pipe-end-thickened structure, welding joint, and welded structure

#92
20210102281
2021-04-08

Method of producing copper alloy material having high strength and excellent bend ability for automobile and electrical/electronic components

#93
20210062971
2021-03-04

Method of cladding a pressure vessel

#94
20210062313
2021-03-04

HOT-ROLLED STEEL SHEET HAVING EXCELLENT IMPACT RESISTANCE, STEEL PIPE, MEMBER, AND MANUFACTURING METHODS THEREFOR

#95
20210054487
2021-02-25

Hot-rolled steel sheet for coiled tubing and method for manufacturing the same

#96
20210054485
2021-02-25

Hot-rolled steel sheet with excellent low-temperature toughness, steel pipe, and manufacturing method therefor

#97
20210040575
2021-02-11

System and method for manufacturing a part

#98
20210032734
2021-02-04

Steel pipe and method for producing steel pipe

#99
20210032732
2021-02-04

Steel material for line pipes, method for producing the same, and method for producing line pipe

#100
20210032730
2021-02-04

SULPHIDE STRESS CRACKING RESISTANT STEEL, TUBULAR PRODUCT MADE FROM SAID STEEL, PROCESS FOR MANUFACTURING A TUBULAR PRODUCT AND USE THEREOF

#101
20210025020
2021-01-28

Low temperature resistant oil casing having high strength and high toughness, and manufacturing method thereof

#102
20210012937
2021-01-14

Insulation treatment method for helium inlet pipe of superconducting magnet

#103
20210002750
2021-01-07

Duplex stainless steel

#104
20210001425
2021-01-07

Electric resistance welded steel pipe for producing hollow stabilizer, hollow stabilizer, and production methods for same

#105
20200360978
2020-11-19

Method for straightening of a FeCrAl alloy tube

#106
20200354816
2020-11-12

Nickel-titanium-yttrium alloys with reduced oxide inclusions

#107
20200347489
2020-11-05

Al plated welded pipe for hardening use and Al plated hollow member and method for producing same

#108
20200332381
2020-10-22

Electric resistance welded steel pipe or tube and production method for electric resistance welded steel pipe or tube

#109
20200318211
2020-10-08

Method for producing a profiled component, and profiled component

#110
20200271247
2020-08-27

STEEL SHEET, TAILORED BLANK, HOT STAMPED PRODUCT, STEEL PIPE, HOLLOW HOT STAMPED PRODUCT, METHOD OF MANUFACTURING STEEL SHEET, METHOD OF MANUFACTURING TAILORED BLANK, METHOD OF MANUFACTURING HOT STAMPED PRODUCT, METHOD OF MANUFACTURING STEEL PIPE, AND METHOD OF MANUFACTURING HOLLOW HOT STAMPED PRODUCT

#111
20200255920
2020-08-13

Steel material for welding steel pipe having excellent low-temperature toughness, steel material that has undergone weld heat treatment, and method for manufacturing same

#112
20200255917
2020-08-13

Steel for coiled tubing with low yield ratio and ultra-high strength and preparation method thereof

#113
20200230364
2020-07-23

Intravenous therapy system for blood vessel access via a curved needle and curved catheter

#114
20200216936
2020-07-09

High-strength stainless steel seamless pipe for oil country tubular goods, and method for manufacturing same

#115
20200208248
2020-07-02

Mechanically-assisted gaseous addition of hydrogen to metal alloys

#116
20200200255
2020-06-25

Modular pinion shaft for reciprocating pumps

#117
20200199720
2020-06-25

A TUBE MADE OF AN AUSTENITIC STAINLESS STEEL AND A METHOD FOR MANUFACTURING THEREOF

#118
20200198065
2020-06-25

Copper-alloy stainless pipe, air conditioner including the same, and method of manufacturing the same

#119
20200190618
2020-06-18

STEEL MEMBER, HOT-ROLLED STEEL SHEET FOR STEEL MEMBER, AND PRODUCTION METHOD THEREFOR

#120
20200190615
2020-06-18

Steel member and production method therefor

#121
20200181730
2020-06-11

Homogenization process for coiled tubing

#122
20200114454
2020-04-16

Work hardened welds and methods for same

#123
20200109460
2020-04-09

Apparatus line for manufacturing seamless steel pipe and tube and method of manufacturing duplex seamless stainless steel pipe

#124
20200102633
2020-04-02

Method of forming and heat treating coiled tubing

#125
20200095647
2020-03-26

Method of manufacturing fuel rail for gasoline direct injection

#126
20200087759
2020-03-19

Austenitic Alloy Material and Austenitic Alloy Pipe

#127
20200011547
2020-01-09

Air conditioner

#128
20200009629
2020-01-09

Method of manufacturing a coiled tubing string

#129
20190390311
2019-12-26

Hot-rolled steel sheet for coiled tubing

#130
20190390296
2019-12-26

Electric resistance welded steel tube for coiled tubing and method for manufacturing the same

#131
20190381594
2019-12-19

Work hardened welds and methods for same

#132
20190381593
2019-12-19

LONGITUDINAL SEAM WELDED STEEL PIPE

#133
20190376157
2019-12-12

High-strength stainless steel seamless pipe for oil country tubular goods, and method for producing same

#134
20190360064
2019-11-28

HIGH PERFORMANCE MATERIAL FOR COILED TUBING APPLICATIONS AND THE METHOD OF PRODUCING THE SAME

#135
20190360063
2019-11-28

High performance material for coiled tubing applications and the method of producing the same

#136
20190352755
2019-11-21

Steel for manufacturing a component by hot forming and use of the component

#137
20190316218
2019-10-17

Steel material for welded steel pipe, having excellent longitudinal uniform elongation, manufacturing method therefor, and steel pipe using same

#138
20190300980
2019-10-03

Ferritic-austenitic two-phase stainless steel material and method for manufacturing same

#139
20190300979
2019-10-03

Seamless steel pipe and method for producing the seamless steel pipe

#140
20190292619
2019-09-26

Duplex stainless steel and method of manufacturing duplex stainless steel

#141
20190292618
2019-09-26

High-strength seamless stainless steel pipe for oil country tubular goods, and method for producing the same

#142
20190276908
2019-09-12

Wellbore tubular air quenching

#143
20190274851
2019-09-12

Thin, narrow tube and drawing apparatus and drawing method for manufacturing the same

#144
20190269502
2019-09-05

THERMOCHEMICALLY TREATED MINIATURE TUBES AS SEMIFINISHED PRODUCTS FOR VASCULAR STENTS

#145
20190264297
2019-08-29

Medium-manganese steel product for low-temperature use and method for the production thereof

#146
20190256937
2019-08-22

Apparatus for microtreatment of iron-based alloy

#147
20190255646
2019-08-22

Electric resistance welded steel pipe having identifiable seam portion and method for manufacturing the same

#148
20190226063
2019-07-25

Steel material and oil-well steel pipe

#149
20190226042
2019-07-25

Method for producing a high strength tube part

#150
20190226041
2019-07-25

Method for the in-line manufacturing of steel tube

#151
20190217424
2019-07-18

Electric resistance welded steel pipe for torsion beam

#152
20190211430
2019-07-11

Hot-rolled steel sheet for heavy-wall, high-strength line pipe, welded steel pipe for heavy-wall, high-strength line pipe, and method for producing the welded steel pipe

#153
20190211416
2019-07-11

Dual-phase stainless steel, and method of production thereof

#154
20190211411
2019-07-11

Method of manufacturing welded structure of ferritic heat-resistant steel and welded structure of ferritic heat-resistant steel

#155
20190210137
2019-07-11

Method of manufacturing welded structure of ferritic heat-resistant steel and welded structure of ferritic heat-resistant steel

#156
20190193131
2019-06-27

Method for forming a hollow of a ferritic FeCrAl alloy into a tube

#157
20190186655
2019-06-20

Electric resistance welded clad steel pipe or tube and method of producing same

#158
20190184437
2019-06-20

Clad welded pipe or tube and method of producing same

#159
20190177823
2019-06-13

Steel bar for downhole member, and downhole member

#160
20190177813
2019-06-13

Seamless steel pipe and method for producing same

#161
20190177812
2019-06-13

Method and device for forming and hardening steel materials

#162
20190162364
2019-05-30

Composite pressure vessel liner, composite pressure vessel, and method for producing composite pressure vessel liner

#163
20190161819
2019-05-30

METHOD FOR PRODUCING A COMPONENT, COMPONENT AND PRESS FOR PRODUCING A COMPONENT

#164
20190152528
2019-05-23

Metal pipe and structural member using metal pipe for vehicle

#165
20190145570
2019-05-16

CORROSION-RESISTANT PIPING AND METHODS OF MANUFACTURING AND USING THE SAME

#166
20190144981
2019-05-16

Austenitic stainless steel and production method therefor

#167
20190136361
2019-05-09

Cast product having alumina barrier layer

#168
20190136337
2019-05-09

High strength stainless steel seamless pipe for oil country tubular goods

#169
20190127818
2019-05-02

Thermal processing of closed shape workpieces

#170
20190118865
2019-04-25

Metal pipe and structural member using metal pipe

#171
20190112694
2019-04-18

Austenitic Stainless Steel Material

#172
20190100821
2019-04-04

High-strength seamless stainless steel pipe and method of manufacturing high-strength seamless stainless steel pipe

#173
20190085424
2019-03-21

Heat treatment apparatus, heat treatment method for steel workpiece, and hot bending method for steel workpiece

#174
20190078182
2019-03-14

Aluminum oxide forming heat transfer tube for thermal cracking

#175
20190071749
2019-03-07

Component manufacturing method and component

#176
20190070650
2019-03-07

Tube and a method of manufacturing a tube

#177
20190063641
2019-02-28

Steel material and oil-well steel pipe

#178
20190055617
2019-02-21

Low alloy high strength thick-walled seamless steel pipe for oil country tubular goods

#179
20190048446
2019-02-14

Steel material and oil-well steel pipe

#180
20190048444
2019-02-14

LOW ALLOY HIGH STRENGTH SEAMLESS STEEL PIPE FOR OIL COUNTRY TUBULAR GOODS

#181
20190048443
2019-02-14

Low alloy high strength seamless steel pipe for oil country tubular goods

#182
20190040488
2019-02-07

Steel plate for high-strength and high-toughness steel pipes and method for producing steel plate

#183
20190040485
2019-02-07

STAINLESS STEEL TUBES AND METHOD FOR PRODUCTION THEREOF

#184
20190040480
2019-02-07

SEAMLESS STEEL PIPE AND METHOD FOR PRODUCING SAME

#185
20190032191
2019-01-31

Hollow spring member and hollow spring member production method

#186
20190032190
2019-01-31

Hollow stabilizer production method and hollow stabilizer production device

#187
20190017134
2019-01-17

Process of producing an austenitic stainless steel tube

#188
20190010569
2019-01-10

Process of producing a duplex stainless steel tube

#189
20180327881
2018-11-15

High-strength seamless steel pipe for oil country tubular goods and method of producing the same

#190
20180320802
2018-11-08

Mechanical processing of high aspect ratio metallic tubing and related technology

#191
20180320243
2018-11-08

Method of manufacturing stainless pipe for oil wells and stainless steel pipe for oil wells

#192
20180305780
2018-10-25

Electric resistance welded steel pipe for high-strength hollow stabilizer, and method for manufacturing electric resistance welded steel pipe for high-strength hollow stabilizer

#193
20180282833
2018-10-04

Method for manufacturing bainite high-strength seamless steel tube, and bainite high-strength seamless steel tube

#194
20180274054
2018-09-27

Seamless steel tube with high strength and toughness and manufacturing method therefor

#195
20180265960
2018-09-20

POST-BORIDING PROCESSES FOR TREATING PIPE AND RECOVERING BORONIZING POWDER

#196
20180265941
2018-09-20

Process for on-line quenching of seamless steel tube using residual heat and manufacturing method

#197
20180258515
2018-09-13

Enhanced wear resistant steel and methods of making the same

#198
20180245189
2018-08-30

Rail vehicle axle

#199
20180237892
2018-08-23

Non-scaling heat-treatable steel and method for producing a non-scaling component from said steel

#200
20180229289
2018-08-16

Compressive forming processes for enhancing collapse resistance in metallic tubular products

#201
20180223403
2018-08-09

HIGH-ALLOY STEEL AND METHOD FOR PRODUCING PIPES FROM THIS STEEL BY MEANS OF INTERNAL HIGH PRESSURE FORMING

#202
20180223384
2018-08-09

High performance material for coiled tubing applications and the method of producing the same

#203
20180209022
2018-07-26

Duplex stainless steel and formed object thereof

#204
20180209005
2018-07-26

Process for producing a high-grade steel tube and high-grade steel tube

#205
20180202534
2018-07-19

Modular pinion shaft for reciprocating pumps

#206
20180200770
2018-07-19

Method of manufacturing a coiled tubing string

#207
20180187278
2018-07-05

Steel pipe for line pipe and method of manufacturing the same

#208
20180187277
2018-07-05

High-toughness seamless steel tube for automobile safety airbag and manufacturing method therefor

#209
20180171443
2018-06-21

HOT ROLLED STEEL PLATE FOR OIL WELL PIPE, STEEL PIPE USING THE SAME, AND METHOD OF MANUFACTURING THE SAME

#210
20180171424
2018-06-21

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Bracket-integrated double-layer door impact beam, apparatus and method for manufacturing the same

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Method of preparing fiber sensing devices through low-temperature magnetic control sputtering

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Shaped boron tubular structure support

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2018-05-24

High Cr-based austenitic stainless steel

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2018-05-24

Hardening apparatus for a long member, and a hardening method for a long member

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2018-05-17

LOW ALLOY STEEL FOR OIL COUNTRY TUBULAR GOODS HAVING EXCELLENT SULFIDE STRESS CRACKING RESISTANCE AND MANUFACTURING METHOD THEREFOR

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2018-05-17

Method for blow molding metal containers

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2018-05-03

METHOD AND DEVICE FOR GENERATING DEFORMATION TWINNING IN A METAL

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2018-05-03

Hollow stabilizer

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High strength electric resistance welded steel pipe and method for producing high strength electric resistance welded steel pipe

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2018-04-12

STEEL FOR HOT FORMING

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Fuel rail

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Steel for pipes having high fatigue resistance, method of manufacturing the same, and welded steel pipe using the same

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2018-03-15

Method for producing hollow stabilizer

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2018-03-15

HIGH-STRENGTH STEEL, METHOD FOR MANUFACTURING HIGH-STRENGTH STEEL, STEEL PIPE AND METHOD FOR MANUFACTURING STEEL PIPE (AS AMENDED)

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X80 pipeline steel with good strain-aging performance, pipeline tube and method for producing same

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High-strength steel, method for manufacturing high-strength steel, steel pipe, and method for manufacturing steel pipe

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2018-03-01

Hollow forging process for main shaft of large wind turbine generator

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2018-03-01

Hot steel forging in horizontal press

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2018-02-22

High-strength steel, method for manufacturing high-strength steel, steel pipe, and method for manufacturing steel pipe

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2018-02-22

HIGH PERFORMANCE MATERIAL FOR COILED TUBING APPLICATIONS AND THE METHOD OF PRODUCING THE SAME

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2018-02-15

Steel material for composite pressure vessel liner and steel pipe or tube for composite pressure vessel liner

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2018-02-15

Method and system for manufacturing coiled tubing

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2018-02-08

Electric resistance welded steel pipe having identifiable seam portion and method for manufacturing the same

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2018-02-01

HIGH-STRENGTH ELECTRIC RESISTANCE WELDED STEEL PIPE AND METHOD FOR PRODUCING THE SAME

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2018-01-25

High-strength welded steel pipe for airbag inflator and method for manufacturing the same

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2018-01-25

High-strength heavy-walled stainless steel seamless tube or pipe and method of manufacturing the same

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20180023157
2018-01-25

FUEL RAIL FOR GASOLINE DIRECT INJECTION

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2018-01-25

Lightweight door beam, composition thereof and method of manufacturing the same

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2018-01-04

Autofrettage of thermally clad components

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2018-01-04

Heat treatable steel, product formed thereof having ultra high strength and excellent durability, and method for manufacturing same

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2017-12-28

High strength thick-walled electric-resistance-welded steel pipe for deep-well conductor casing, method for manufacturing the same, and high strength thick-walled conductor casing for deep wells

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High strength thick-walled electric-resistance-welded steel pipe for deep-well conductor casing, method for manufacturing the same, and high-strength thick-walled conductor casing for deep wells

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Low-alloy steel for oil well pipe and method of manufacturing low-alloy steel oil well pipe

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Electric resistance welded steel pipe and manufacturing method therefor

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Method for producing circumferential weld joint for low-carbon martensitic stainless steel pipes

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HIGH STRENGTH CRYOGENIC HIGH MANGANESE STEELS AND METHODS OF MAKING THE SAME

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Inline laser-based system and method for thermal treatment of continuous products

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Method of quenching steel pipe, apparatus for quenching steel pipe, method of manufacturing steel pipe and facility for manufacturing steel pipe

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High-strength seamless steel pipe for oil country tubular goods and method of producing the same

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High-strength seamless steel pipe for oil country tubular goods and method of producing the same

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Production method for stabilizers

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Gas pressure container and tube element for an airbag system, and method for producing same

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High performance material for coiled tubing applications and the method of producing the same

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METHOD OF MANUFACTURING STEEL STRIP FOR COILED TUBING

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Lumen stent and preform thereof, and methods for preparing lumen stent and preform thereof

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STEEL STRIP FOR ELECTRIC-RESISTANCE-WELDED STEEL PIPE OR TUBE, ELECTRIC-RESISTANCE-WELDED STEEL PIPE OR TUBE, AND PROCESS FOR PRODUCING STEEL STRIP FOR ELECTRIC-RESISTANCE-WELDED STEEL PIPE OR TUBE

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Low alloy oil-well steel pipe

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Method for manufacturing steel for high-strength hollow spring

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Method for producing an alloy for a reforming tube

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MOTOR VEHICLE TRAILER, CHASSIS AXLE, IN PARTICULAR FOR A MOTOR VEHICLE TRAILER AND USE OF THE CHASSIS AXLE AND OF A MATERIAL

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Thick-wall oil-well steel pipe and production method thereof

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METHOD AND SYSTEM FOR THE PRODUCTION OF A SEAMLESS HOT-ROLLED TUBE AS WELL AS A ROLLED CENTRIFUGALLY CAST TUBE AND USE OF A HOLLOW BLOCK PRODUCED BY MEANS OF CENTRIFUGAL CASTING

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

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OCTG pipe system and method of manufacturing thereof

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High-strength seamless steel pipe for oil country tubular goods and method of producing the same

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Cartridge case induction annealing apparatus

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Tubular strengthening and patterning method for enhanced heat transfer

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Alloy with High Core Hardness Suitable for Rapid Nitriding

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Nitrided track pin for track chain assembly of machine

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Method of forming a cylinder liner

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Methods for creating a zinc-metal oxide layer in metal components for corrosion resistance

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Components made of a steel alloy and method for producing high-strength components

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High-strength seamless stainless steel pipe for oil country tubular goods and method for manufacturing the same

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Low-alloy steel pipe for an oil well

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Seamless steel pipe for line pipe and method for producing the same

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Stabilizer bar and process of producing a stabilizer bar

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Molding apparatus

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MARTENSITIC-FERRITIC STAINLESS STEEL, MANUFACTURED PRODUCT AND PROCESS USING THE S

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Steel material for highly deformable line pipes having superior strain aging resistance and superior HIC resistance, method for manufacturing same, and welded steel pipe

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Seamless steel tube for fuel injection

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2017-01-26

METHOD OF PRODUCING AN IMPLANT

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Heat treatment system and heat treatment method

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2017-01-12

Method for the production of a seamless, multilayered tubular product, and round or polygonal block for use in this method

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2017-01-05

Titanium-free alloy

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Method for producing a tempered seamlessly hot-fabricated steel pipe

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Steel pipe for fuel injection pipe and fuel injection pipe using the same

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Seamless steel pipe for line pipe used in sour environments

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Water jet peening device

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High-strength stainless steel pipe

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2016-11-03

Steel pipe

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2016-10-27

Induction heating coil and induction heating method

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2016-10-13

Wellbore tubular air quenching

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2016-10-06

Process for manufacturing high-nitrogen stainless steel pipe with high strength, high ductility, and excellent corrosion and heat resistance

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2016-10-06

Hot-rolled steel sheet and method of manufacturing the same

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Method for manufacturing a worked member using an induction heating coil

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2016-09-22

COPPER-NICKEL-TIN ALLOY WITH MANGANESE

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2016-09-22

Quenching tank system and method of use

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2016-09-15

Equipment line for manufacturing seamless steel tube or pipe and method of manufacturing high-strength stainless steel seamless tube or pipe for oil wells using the equipment line

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2016-09-08

Method for producing a hot-formed and quench-hardened motor vehicle component formed by internal high-pressure forming