PL3260565T3 - Blacha stalowa cienka walcowana na gorąco - Google Patents
Blacha stalowa cienka walcowana na gorącoInfo
- Publication number
- PL3260565T3 PL3260565T3 PL15882644T PL15882644T PL3260565T3 PL 3260565 T3 PL3260565 T3 PL 3260565T3 PL 15882644 T PL15882644 T PL 15882644T PL 15882644 T PL15882644 T PL 15882644T PL 3260565 T3 PL3260565 T3 PL 3260565T3
- Authority
- PL
- Poland
- Prior art keywords
- hot
- steel sheet
- rolled steel
- rolled
- sheet
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/02—Rolling special iron alloys, e.g. stainless steel
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/001—Heat treatment of ferrous alloys containing Ni
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/002—Heat treatment of ferrous alloys containing Cr
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/007—Heat treatment of ferrous alloys containing Co
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0263—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/20—Temperature
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/009—Pearlite
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2015/054846 WO2016132542A1 (ja) | 2015-02-20 | 2015-02-20 | 熱延鋼板 |
| EP15882644.6A EP3260565B1 (en) | 2015-02-20 | 2015-02-20 | Hot-rolled steel sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL3260565T3 true PL3260565T3 (pl) | 2019-12-31 |
Family
ID=56688801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL15882644T PL3260565T3 (pl) | 2015-02-20 | 2015-02-20 | Blacha stalowa cienka walcowana na gorąco |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US11401571B2 (pl) |
| EP (1) | EP3260565B1 (pl) |
| JP (1) | JP6327395B2 (pl) |
| KR (1) | KR101957078B1 (pl) |
| CN (1) | CN107208209B (pl) |
| BR (1) | BR112017013229A2 (pl) |
| ES (1) | ES2743814T3 (pl) |
| MX (1) | MX2017008622A (pl) |
| PL (1) | PL3260565T3 (pl) |
| TW (1) | TWI602933B (pl) |
| WO (1) | WO2016132542A1 (pl) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016132549A1 (ja) | 2015-02-20 | 2016-08-25 | 新日鐵住金株式会社 | 熱延鋼板 |
| US11401571B2 (en) | 2015-02-20 | 2022-08-02 | Nippon Steel Corporation | Hot-rolled steel sheet |
| WO2016135898A1 (ja) | 2015-02-25 | 2016-09-01 | 新日鐵住金株式会社 | 熱延鋼板 |
| KR102186320B1 (ko) | 2016-08-05 | 2020-12-03 | 닛폰세이테츠 가부시키가이샤 | 강판 및 도금 강판 |
| MX2018016223A (es) * | 2016-08-05 | 2019-05-30 | Nippon Steel & Sumitomo Metal Corp | Lamina de acero y lamina de acero enchapada. |
| US10889879B2 (en) * | 2016-08-05 | 2021-01-12 | Nippon Steel Corporation | Steel sheet and plated steel sheet |
| KR101917448B1 (ko) * | 2016-12-20 | 2018-11-09 | 주식회사 포스코 | 용접성 및 연성이 우수한 고강도 열연강판 및 이의 제조방법 |
| CN110225990A (zh) * | 2017-02-20 | 2019-09-10 | 日本制铁株式会社 | 热冲压成形体 |
| EP3604585A4 (en) * | 2017-03-31 | 2020-09-02 | Nippon Steel Corporation | HOT-ROLLED STEEL SHEET |
| CN111344423B (zh) * | 2017-11-15 | 2022-07-22 | 日本制铁株式会社 | 高强度冷轧钢板 |
| KR102021815B1 (ko) * | 2018-03-16 | 2019-09-18 | 닛폰세이테츠 가부시키가이샤 | 석탄·광석 운반선 홀드용 강판 |
| KR102513331B1 (ko) * | 2018-07-31 | 2023-03-22 | 제이에프이 스틸 가부시키가이샤 | 고강도 열연 도금 강판 |
| KR102517187B1 (ko) | 2018-10-17 | 2023-04-03 | 제이에프이 스틸 가부시키가이샤 | 박강판 및 그의 제조 방법 |
| JP6773252B2 (ja) * | 2018-10-19 | 2020-10-21 | 日本製鉄株式会社 | 熱延鋼板 |
| JP6784343B1 (ja) * | 2019-03-06 | 2020-11-11 | 日本製鉄株式会社 | 熱延鋼板 |
| EP4039842B1 (en) | 2019-10-01 | 2023-08-30 | Nippon Steel Corporation | Hot-rolled steel sheet |
| CN114787405B (zh) * | 2020-01-09 | 2023-05-12 | 日本制铁株式会社 | 热压成形体 |
| JP7260824B2 (ja) | 2020-01-27 | 2023-04-19 | 日本製鉄株式会社 | 熱延鋼板 |
| US12435382B2 (en) | 2020-01-27 | 2025-10-07 | Nippon Steel Corporation | Hot-rolled steel sheet |
| JP7495640B2 (ja) | 2020-08-27 | 2024-06-05 | 日本製鉄株式会社 | 熱延鋼板 |
| WO2022044494A1 (ja) | 2020-08-27 | 2022-03-03 | 日本製鉄株式会社 | 熱延鋼板 |
| WO2024057064A1 (en) * | 2022-09-15 | 2024-03-21 | Arcelormittal | Hot rolling with residual elements |
| WO2024057065A1 (en) * | 2022-09-15 | 2024-03-21 | Arcelormittal | Hot rolling with residual elements |
| CN120380183A (zh) * | 2022-12-23 | 2025-07-25 | 日本制铁株式会社 | 热轧钢板 |
Family Cites Families (121)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4501626A (en) | 1980-10-17 | 1985-02-26 | Kabushiki Kaisha Kobe Seiko Sho | High strength steel plate and method for manufacturing same |
| JPS5770257A (en) | 1980-10-17 | 1982-04-30 | Kobe Steel Ltd | High strength steel plate |
| JPS5842726A (ja) | 1981-09-04 | 1983-03-12 | Kobe Steel Ltd | 高強度熱延鋼板の製造方法 |
| JPS61217529A (ja) | 1985-03-22 | 1986-09-27 | Nippon Steel Corp | 延性のすぐれた高強度鋼板の製造方法 |
| JPH02149646A (ja) * | 1988-11-30 | 1990-06-08 | Kobe Steel Ltd | 加工性、溶接性に優れた高強度熱延鋼板とその製造方法 |
| JP2609732B2 (ja) * | 1989-12-09 | 1997-05-14 | 新日本製鐵株式会社 | 加工性とスポット溶接性に優れた熱延高強度鋼板とその製造方法 |
| JP2840479B2 (ja) | 1991-05-10 | 1998-12-24 | 株式会社神戸製鋼所 | 疲労強度と疲労亀裂伝播抵抗の優れた高強度熱延鋼板の製造方法 |
| JP2601581B2 (ja) | 1991-09-03 | 1997-04-16 | 新日本製鐵株式会社 | 加工性に優れた高強度複合組織冷延鋼板の製造方法 |
| JP2548654B2 (ja) | 1991-12-13 | 1996-10-30 | 新日本製鐵株式会社 | 複合組織鋼材のエッチング液およびエッチング方法 |
| JP3037855B2 (ja) | 1993-09-13 | 2000-05-08 | 新日本製鐵株式会社 | 耐疲労亀裂進展特性の良好な鋼板およびその製造方法 |
| JPH0949026A (ja) | 1995-08-07 | 1997-02-18 | Kobe Steel Ltd | 強度−伸びバランス及び伸びフランジ性にすぐれる高強度熱延鋼板の製造方法 |
| JP3333414B2 (ja) | 1996-12-27 | 2002-10-15 | 株式会社神戸製鋼所 | 伸びフランジ性に優れる加熱硬化用高強度熱延鋼板及びその製造方法 |
| US6254698B1 (en) | 1997-12-19 | 2001-07-03 | Exxonmobile Upstream Research Company | Ultra-high strength ausaged steels with excellent cryogenic temperature toughness and method of making thereof |
| DZ2530A1 (fr) | 1997-12-19 | 2003-02-01 | Exxon Production Research Co | Procédé de préparation d'une tôle d'acier cette tôle d'acier et procédé pour renforcer la resistanceà la propagation des fissures d'une tôle d'acier. |
| EP1149925B1 (en) | 1999-09-29 | 2010-12-01 | JFE Steel Corporation | Sheet steel and method for producing sheet steel |
| FR2801061B1 (fr) * | 1999-11-12 | 2001-12-14 | Lorraine Laminage | Procede de realisation d'une bande de tole laminere a chaud a tres haute resistance, utilisable pour la mise en forme et notamment pour l'emboutissage |
| JP4258934B2 (ja) | 2000-01-17 | 2009-04-30 | Jfeスチール株式会社 | 加工性と疲労特性に優れた高強度熱延鋼板およびその製造方法 |
| JP4306076B2 (ja) * | 2000-02-02 | 2009-07-29 | Jfeスチール株式会社 | 伸びフランジ性に優れた高延性熱延鋼板およびその製造方法 |
| JP4445095B2 (ja) | 2000-04-21 | 2010-04-07 | 新日本製鐵株式会社 | バーリング加工性に優れる複合組織鋼板およびその製造方法 |
| KR100441414B1 (ko) * | 2000-04-21 | 2004-07-23 | 신닛뽄세이테쯔 카부시키카이샤 | 버링 가공성이 우수한 고피로강도 강판 및 그의 제조방법 |
| JP3790135B2 (ja) | 2000-07-24 | 2006-06-28 | 株式会社神戸製鋼所 | 伸びフランジ性に優れた高強度熱延鋼板およびその製造方法 |
| EP1176217B1 (en) | 2000-07-24 | 2011-12-21 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | High-strength hot-rolled steel sheet superior in strech flange formability and method for production thereof |
| JP3882577B2 (ja) | 2000-10-31 | 2007-02-21 | Jfeスチール株式会社 | 伸びおよび伸びフランジ性に優れた高張力熱延鋼板ならびにその製造方法および加工方法 |
| JP3888128B2 (ja) | 2000-10-31 | 2007-02-28 | Jfeスチール株式会社 | 材質均一性に優れた高成形性高張力熱延鋼板ならびにその製造方法および加工方法 |
| WO2002036840A1 (fr) | 2000-10-31 | 2002-05-10 | Nkk Corporation | Tole d"acier laminee a chaud presentant une resistance elevee a la traction et procede de fabrication |
| JP4205853B2 (ja) | 2000-11-24 | 2009-01-07 | 新日本製鐵株式会社 | バーリング加工性と疲労特性に優れた熱延鋼板およびその製造方法 |
| JP2002226943A (ja) | 2001-02-01 | 2002-08-14 | Kawasaki Steel Corp | 加工性に優れた高降伏比型高張力熱延鋼板およびその製造方法 |
| JP2002317246A (ja) | 2001-04-19 | 2002-10-31 | Nippon Steel Corp | 切り欠き疲労強度とバーリング加工性に優れる自動車用薄鋼板およびその製造方法 |
| JP4062118B2 (ja) * | 2002-03-22 | 2008-03-19 | Jfeスチール株式会社 | 伸び特性および伸びフランジ特性に優れた高張力熱延鋼板とその製造方法 |
| JP4205893B2 (ja) | 2002-05-23 | 2009-01-07 | 新日本製鐵株式会社 | プレス成形性と打抜き加工性に優れた高強度熱延鋼板及びその製造方法 |
| AU2003284496A1 (en) | 2002-12-24 | 2004-07-22 | Nippon Steel Corporation | High strength steel sheet exhibiting good burring workability and excellent resistance to softening in heat-affected zone and method for production thereof |
| JP4288146B2 (ja) | 2002-12-24 | 2009-07-01 | 新日本製鐵株式会社 | 溶接熱影響部の耐軟化性に優れたバーリング性高強度鋼板の製造方法 |
| JP4116901B2 (ja) | 2003-02-20 | 2008-07-09 | 新日本製鐵株式会社 | バーリング性高強度薄鋼板およびその製造方法 |
| JP2004315857A (ja) | 2003-04-14 | 2004-11-11 | Nippon Steel Corp | 打ち抜き加工性に優れた高強度熱延鋼板及びその製造方法 |
| JP4580157B2 (ja) | 2003-09-05 | 2010-11-10 | 新日本製鐵株式会社 | Bh性と伸びフランジ性を兼ね備えた熱延鋼板およびその製造方法 |
| EP1553202A1 (en) | 2004-01-09 | 2005-07-13 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Ultra-high strength steel sheet having excellent hydrogen embrittlement resistance, and method for manufacturing the same |
| JP4412727B2 (ja) | 2004-01-09 | 2010-02-10 | 株式会社神戸製鋼所 | 耐水素脆化特性に優れた超高強度鋼板及びその製造方法 |
| JP4470701B2 (ja) | 2004-01-29 | 2010-06-02 | Jfeスチール株式会社 | 加工性および表面性状に優れた高強度薄鋼板およびその製造方法 |
| JP4333379B2 (ja) | 2004-01-29 | 2009-09-16 | Jfeスチール株式会社 | 加工性、表面性状および板平坦度に優れた高強度薄鋼板の製造方法 |
| JP2005256115A (ja) | 2004-03-12 | 2005-09-22 | Nippon Steel Corp | 伸びフランジ性と疲労特性に優れた高強度熱延鋼板 |
| JP4926406B2 (ja) | 2004-04-08 | 2012-05-09 | 新日本製鐵株式会社 | 疲労き裂伝播特性に優れた鋼板 |
| JP4460343B2 (ja) | 2004-04-13 | 2010-05-12 | 新日本製鐵株式会社 | 打ち抜き加工性に優れた高強度熱延鋼板及びその製造方法 |
| JP3889766B2 (ja) | 2005-03-28 | 2007-03-07 | 株式会社神戸製鋼所 | 穴拡げ加工性に優れた高強度熱延鋼板およびその製造方法 |
| WO2006103991A1 (ja) | 2005-03-28 | 2006-10-05 | Kabushiki Kaisha Kobe Seiko Sho | 穴拡げ加工性に優れた高強度熱延鋼板およびその製造方法 |
| JP5070732B2 (ja) | 2005-05-30 | 2012-11-14 | Jfeスチール株式会社 | 伸び特性、伸びフランジ特性および引張疲労特性に優れた高強度熱延鋼板およびその製造方法 |
| DE102005051052A1 (de) * | 2005-10-25 | 2007-04-26 | Sms Demag Ag | Verfahren zur Herstellung von Warmband mit Mehrphasengefüge |
| JP4840567B2 (ja) | 2005-11-17 | 2011-12-21 | Jfeスチール株式会社 | 高強度薄鋼板の製造方法 |
| JP4854333B2 (ja) | 2006-03-03 | 2012-01-18 | 株式会社中山製鋼所 | 高強度鋼板、未焼鈍高強度鋼板およびそれらの製造方法 |
| JP4575893B2 (ja) | 2006-03-20 | 2010-11-04 | 新日本製鐵株式会社 | 強度延性バランスに優れた高強度鋼板 |
| JP4528275B2 (ja) | 2006-03-20 | 2010-08-18 | 新日本製鐵株式会社 | 伸びフランジ性に優れた高強度熱延鋼板 |
| WO2007132548A1 (ja) | 2006-05-16 | 2007-11-22 | Jfe Steel Corporation | 伸び特性、伸びフランジ特性および引張疲労特性に優れた高強度熱延鋼板およびその製造方法 |
| JP4969915B2 (ja) | 2006-05-24 | 2012-07-04 | 新日本製鐵株式会社 | 耐歪時効性に優れた高強度ラインパイプ用鋼管及び高強度ラインパイプ用鋼板並びにそれらの製造方法 |
| JP5228447B2 (ja) | 2006-11-07 | 2013-07-03 | 新日鐵住金株式会社 | 高ヤング率鋼板及びその製造方法 |
| EP2130938B1 (en) | 2007-03-27 | 2018-06-06 | Nippon Steel & Sumitomo Metal Corporation | High-strength hot rolled steel sheet being free from peeling and excellent in surface and burring properties and process for manufacturing the same |
| JP5339765B2 (ja) | 2007-04-17 | 2013-11-13 | 株式会社中山製鋼所 | 高強度熱延鋼板およびその製造方法 |
| JP5087980B2 (ja) | 2007-04-20 | 2012-12-05 | 新日本製鐵株式会社 | 打ち抜き加工性に優れた高強度熱延鋼板及びその製造方法 |
| JP5037415B2 (ja) * | 2007-06-12 | 2012-09-26 | 新日本製鐵株式会社 | 穴広げ性に優れた高ヤング率鋼板及びその製造方法 |
| JP4980163B2 (ja) | 2007-07-20 | 2012-07-18 | 新日本製鐵株式会社 | 成形性に優れる複合組織鋼板およびその製造方法 |
| JP5359296B2 (ja) | 2008-01-17 | 2013-12-04 | Jfeスチール株式会社 | 高強度鋼板およびその製造方法 |
| JP5194858B2 (ja) | 2008-02-08 | 2013-05-08 | Jfeスチール株式会社 | 高強度熱延鋼板およびその製造方法 |
| KR101103203B1 (ko) * | 2008-03-26 | 2012-01-05 | 신닛뽄세이테쯔 카부시키카이샤 | 피로 특성과 신장 플랜지성이 우수한 열연 강판 및 그 제조 방법 |
| PL2264206T3 (pl) | 2008-04-10 | 2015-04-30 | Nippon Steel & Sumitomo Metal Corp | Blachy stalowe, o wysokiej wytrzymałości, wykazujące bardzo dobrą równowagę pomiędzy obrabialnością zadziorów oraz ciągliwością oraz doskonałą odporność na zmęczenie, blachy stalowe cynkowane oraz procesy ich wytwarzania |
| JP5200653B2 (ja) | 2008-05-09 | 2013-06-05 | 新日鐵住金株式会社 | 熱間圧延鋼板およびその製造方法 |
| JP5042914B2 (ja) | 2008-05-12 | 2012-10-03 | 新日本製鐵株式会社 | 高強度鋼およびその製造方法 |
| JP5438302B2 (ja) | 2008-10-30 | 2014-03-12 | 株式会社神戸製鋼所 | 加工性に優れた高降伏比高強度の溶融亜鉛めっき鋼板または合金化溶融亜鉛めっき鋼板とその製造方法 |
| JP2010168651A (ja) * | 2008-12-26 | 2010-08-05 | Nakayama Steel Works Ltd | 高強度熱延鋼板およびその製造方法 |
| JP4853575B2 (ja) | 2009-02-06 | 2012-01-11 | Jfeスチール株式会社 | 耐座屈性能及び溶接熱影響部靭性に優れた低温用高強度鋼管およびその製造方法 |
| JP4977184B2 (ja) | 2009-04-03 | 2012-07-18 | 株式会社神戸製鋼所 | 伸びと伸びフランジ性のバランスに優れた高強度冷延鋼板およびその製造方法 |
| EP2415891A4 (en) | 2009-04-03 | 2014-11-19 | Kobe Steel Ltd | COLD-ROLLED STEEL PLATE AND METHOD FOR THE PRODUCTION THEREOF |
| JP5240037B2 (ja) | 2009-04-20 | 2013-07-17 | 新日鐵住金株式会社 | 鋼板およびその製造方法 |
| WO2010131303A1 (ja) | 2009-05-11 | 2010-11-18 | 新日本製鐵株式会社 | 打抜き加工性と疲労特性に優れた熱延鋼板、溶融亜鉛めっき鋼板、およびそれらの製造方法 |
| MX2011012371A (es) | 2009-05-27 | 2011-12-08 | Nippon Steel Corp | Lamina de acero de alta resistencia, lamina de acero bañada en caliente, y lamina de acero bañada en caliente aleada que tienen excelentes caracteristicas a la fatiga, alargamiento y colision y metodo de fabricacion para tales laminas de acero. |
| JP5423191B2 (ja) | 2009-07-10 | 2014-02-19 | Jfeスチール株式会社 | 高強度鋼板およびその製造方法 |
| JP5482204B2 (ja) | 2010-01-05 | 2014-05-07 | Jfeスチール株式会社 | 高強度熱延鋼板およびその製造方法 |
| KR101477877B1 (ko) * | 2010-01-29 | 2014-12-30 | 신닛테츠스미킨 카부시키카이샤 | 강판 및 강판 제조 방법 |
| PL2546377T3 (pl) | 2010-03-10 | 2019-07-31 | Nippon Steel & Sumitomo Metal Corporation | Blacha stalowa cienka walcowana na gorąco o dużej wytrzymałości i sposób jej wytwarzania |
| JP5510025B2 (ja) | 2010-04-20 | 2014-06-04 | 新日鐵住金株式会社 | 伸びと局部延性に優れた高強度薄鋼板およびその製造方法 |
| JP5765080B2 (ja) | 2010-06-25 | 2015-08-19 | Jfeスチール株式会社 | 伸びフランジ性に優れた高強度熱延鋼板およびその製造方法 |
| CN103038383B (zh) | 2010-07-28 | 2014-12-24 | 新日铁住金株式会社 | 热轧钢板、冷轧钢板、镀锌钢板及这些钢板的制造方法 |
| JP5719545B2 (ja) | 2010-08-13 | 2015-05-20 | 新日鐵住金株式会社 | 伸びとプレス成形安定性に優れた高強度薄鋼板 |
| JP5126326B2 (ja) | 2010-09-17 | 2013-01-23 | Jfeスチール株式会社 | 耐疲労特性に優れた高強度熱延鋼板およびその製造方法 |
| EP2439290B1 (de) * | 2010-10-05 | 2013-11-27 | ThyssenKrupp Steel Europe AG | Mehrphasenstahl, aus einem solchen Mehrphasenstahl hergestelltes kaltgewalztes Flachprodukt und Verfahren zu dessen Herstellung |
| CN103249853B (zh) | 2010-10-18 | 2015-05-20 | 新日铁住金株式会社 | 高速变形下均一韧性及局部韧性优异的热轧钢板、冷轧钢板以及镀覆钢板 |
| JP5776398B2 (ja) | 2011-02-24 | 2015-09-09 | Jfeスチール株式会社 | 低温靭性に優れた低降伏比高強度熱延鋼板およびその製造方法 |
| JP5667471B2 (ja) | 2011-03-02 | 2015-02-12 | 株式会社神戸製鋼所 | 温間での深絞り性に優れた高強度鋼板およびその温間加工方法 |
| BR112013025015B1 (pt) | 2011-03-28 | 2018-11-06 | Nippon Steel & Sumitomo Metal Corporation | chapa de aço laminada a frio e método de produção da mesma |
| WO2012133636A1 (ja) * | 2011-03-31 | 2012-10-04 | 新日本製鐵株式会社 | 等方加工性に優れるベイナイト含有型高強度熱延鋼板及びその製造方法 |
| PL2698443T3 (pl) * | 2011-04-13 | 2018-05-30 | Nippon Steel & Sumitomo Metal Corporation | Stal walcowana na gorąco do cyjanowania gazowego i sposób jej wytwarzania |
| KR101555418B1 (ko) | 2011-04-13 | 2015-09-23 | 신닛테츠스미킨 카부시키카이샤 | 열연 강판 및 그 제조 방법 |
| US9631265B2 (en) | 2011-05-25 | 2017-04-25 | Nippon Steel | Hot-rolled steel sheet and method for producing same |
| JP5640898B2 (ja) | 2011-06-02 | 2014-12-17 | 新日鐵住金株式会社 | 熱延鋼板 |
| JP5780210B2 (ja) | 2011-06-14 | 2015-09-16 | 新日鐵住金株式会社 | 伸びと穴広げ性に優れた高強度熱延鋼板およびその製造方法 |
| CN103732781B (zh) * | 2011-07-29 | 2016-07-06 | 新日铁住金株式会社 | 合金化热浸镀锌层和具有该层的钢板以及其制造方法 |
| ES2725325T3 (es) | 2011-09-30 | 2019-09-23 | Nippon Steel Corp | Chapa de acero galvanizado por inmersión en caliente de alta resistencia |
| PL2762585T3 (pl) | 2011-09-30 | 2020-01-31 | Nippon Steel Corporation | Blacha stalowa cienka o dużej wytrzymałości cynkowana zanurzeniowo na gorąco o doskonałych właściwościach skrawania mechanicznego, stopowa blacha stalowa cienka o dużej wytrzymałości cynkowana zanurzeniowo na gorąco oraz sposób wytwarzania wspomnianych blach cienkich |
| KR101630550B1 (ko) | 2011-12-27 | 2016-06-24 | 제이에프이 스틸 가부시키가이샤 | 열연 강판 및 그 제조 방법 |
| JP5447741B1 (ja) | 2012-02-17 | 2014-03-19 | 新日鐵住金株式会社 | 鋼板、めっき鋼板、及びそれらの製造方法 |
| TWI463018B (zh) | 2012-04-06 | 2014-12-01 | Nippon Steel & Sumitomo Metal Corp | 具優異裂縫阻滯性之高強度厚鋼板 |
| IN2014MN01636A (pl) | 2012-04-26 | 2015-05-15 | Jfe Steel Corp | |
| EP2865778B1 (en) | 2012-06-26 | 2018-01-31 | Nippon Steel & Sumitomo Metal Corporation | High-strength hot-rolled steel sheet and process for producing same |
| PL2876178T3 (pl) | 2012-07-20 | 2021-01-25 | Nippon Steel Corporation | Materiał stalowy |
| CN104520449B (zh) | 2012-08-03 | 2016-12-14 | 塔塔钢铁艾默伊登有限责任公司 | 一种用于生产热轧钢带的方法以及由此生产的钢带 |
| JP5825225B2 (ja) | 2012-08-20 | 2015-12-02 | 新日鐵住金株式会社 | 熱延鋼板の製造方法 |
| IN2015DN01476A (pl) | 2012-09-26 | 2015-07-03 | Nippon Steel & Sumitomo Metal Corp | |
| EP2902520B1 (en) | 2012-09-27 | 2019-01-02 | Nippon Steel & Sumitomo Metal Corporation | Hot-rolled steel sheet, and production method therefor |
| MX378613B (es) * | 2012-12-18 | 2025-03-11 | Jfe Steel Corp | Lamina de acero laminada en frio de alta resistencia con bajo limite de elasticidad y metodo para la fabricacion de la misma. |
| JP5821861B2 (ja) | 2013-01-23 | 2015-11-24 | 新日鐵住金株式会社 | 外観に優れ、伸びと穴拡げ性のバランスに優れた高強度熱延鋼板及びその製造方法 |
| JP6194951B2 (ja) | 2013-04-15 | 2017-09-13 | 新日鐵住金株式会社 | 熱延鋼板 |
| JP6241274B2 (ja) | 2013-12-26 | 2017-12-06 | 新日鐵住金株式会社 | 熱延鋼板の製造方法 |
| JP6369537B2 (ja) | 2014-04-23 | 2018-08-08 | 新日鐵住金株式会社 | テーラードロールドブランク用熱延鋼板、テーラードロールドブランク、及びそれらの製造方法 |
| JP6292022B2 (ja) | 2014-05-15 | 2018-03-14 | 新日鐵住金株式会社 | 高強度熱延鋼板及びその製造方法 |
| JP6390273B2 (ja) | 2014-08-29 | 2018-09-19 | 新日鐵住金株式会社 | 熱延鋼板の製造方法 |
| WO2016132549A1 (ja) | 2015-02-20 | 2016-08-25 | 新日鐵住金株式会社 | 熱延鋼板 |
| MX2017010537A (es) * | 2015-02-20 | 2017-12-14 | Nippon Steel & Sumitomo Metal Corp | Chapa de acero laminada en caliente. |
| US11401571B2 (en) | 2015-02-20 | 2022-08-02 | Nippon Steel Corporation | Hot-rolled steel sheet |
| WO2016135898A1 (ja) * | 2015-02-25 | 2016-09-01 | 新日鐵住金株式会社 | 熱延鋼板 |
| JP6399201B2 (ja) | 2015-02-25 | 2018-10-03 | 新日鐵住金株式会社 | 熱延鋼板 |
| US10889879B2 (en) * | 2016-08-05 | 2021-01-12 | Nippon Steel Corporation | Steel sheet and plated steel sheet |
| MX2018016223A (es) * | 2016-08-05 | 2019-05-30 | Nippon Steel & Sumitomo Metal Corp | Lamina de acero y lamina de acero enchapada. |
| KR102186320B1 (ko) | 2016-08-05 | 2020-12-03 | 닛폰세이테츠 가부시키가이샤 | 강판 및 도금 강판 |
| BR112019000306B1 (pt) | 2016-08-05 | 2023-02-14 | Nippon Steel Corporation | Chapa de aço e chapa de aço galvanizada |
-
2015
- 2015-02-20 US US15/538,404 patent/US11401571B2/en active Active
- 2015-02-20 MX MX2017008622A patent/MX2017008622A/es unknown
- 2015-02-20 CN CN201580075484.9A patent/CN107208209B/zh active Active
- 2015-02-20 PL PL15882644T patent/PL3260565T3/pl unknown
- 2015-02-20 JP JP2017500251A patent/JP6327395B2/ja active Active
- 2015-02-20 KR KR1020177018427A patent/KR101957078B1/ko active Active
- 2015-02-20 ES ES15882644T patent/ES2743814T3/es active Active
- 2015-02-20 EP EP15882644.6A patent/EP3260565B1/en active Active
- 2015-02-20 BR BR112017013229-0A patent/BR112017013229A2/pt active Search and Examination
- 2015-02-20 WO PCT/JP2015/054846 patent/WO2016132542A1/ja not_active Ceased
-
2016
- 2016-02-22 TW TW105105139A patent/TWI602933B/zh not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| TW201636441A (zh) | 2016-10-16 |
| JPWO2016132542A1 (ja) | 2017-10-05 |
| EP3260565A1 (en) | 2017-12-27 |
| MX2017008622A (es) | 2017-11-15 |
| CN107208209B (zh) | 2019-04-16 |
| JP6327395B2 (ja) | 2018-05-23 |
| BR112017013229A2 (pt) | 2018-01-09 |
| WO2016132542A1 (ja) | 2016-08-25 |
| ES2743814T3 (es) | 2020-02-20 |
| US11401571B2 (en) | 2022-08-02 |
| KR101957078B1 (ko) | 2019-03-11 |
| CN107208209A (zh) | 2017-09-26 |
| KR20170093886A (ko) | 2017-08-16 |
| EP3260565B1 (en) | 2019-07-31 |
| TWI602933B (zh) | 2017-10-21 |
| US20170349967A1 (en) | 2017-12-07 |
| EP3260565A4 (en) | 2018-09-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| PL3260565T3 (pl) | Blacha stalowa cienka walcowana na gorąco | |
| PL3263729T3 (pl) | Blacha stalowa cienka walcowana na gorąco | |
| PL3260566T3 (pl) | Blacha stalowa cienka walcowana na gorąco | |
| PL3287539T3 (pl) | Blacha stalowa cienka powlekana galwanicznie | |
| PL3162908T3 (pl) | Blacha stalowa cienka walcowana na gorąco | |
| TWI563101B (en) | Hot-formed steel sheet member | |
| PL3287532T3 (pl) | Blacha cienka ze stali elektrotechnicznej o ziarnach zorientowanych | |
| EP3124637A4 (en) | High-strength hot-formed steel sheet member | |
| EP3330394A4 (en) | High-strength hot-rolled steel sheet | |
| EP3153598A4 (en) | Hot-rolled steel sheet | |
| PL3104990T3 (pl) | Maszyna do zginania blach metalowych | |
| PL3162907T3 (pl) | Blacha cienka ze stali elektrotechnicznej | |
| EP3604586A4 (en) | HOT ROLLED STEEL SHEET | |
| ZA201608396B (en) | Hot-rolled steel sheet and associated manufacturing method | |
| EP3241921A4 (en) | Galvanized steel sheet | |
| PL3282029T3 (pl) | Blacha stalowa do obróbki cieplnej | |
| PL3287537T3 (pl) | Blacha cienka ze zorientowanej stali elektrotechnicznej | |
| PL2939753T3 (pl) | Maszyna zginająca metalową blachę | |
| GB201503357D0 (en) | Bearing Steel | |
| PL3369837T4 (pl) | Blacha stalowa cienka powlekana galwanicznie | |
| EP3222741A4 (en) | High strength high ductility steel sheet | |
| PL3196326T3 (pl) | Blacha stalowa cienka walcowana na gorąco | |
| PL3196325T3 (pl) | Blacha cienka ze stali elektrotechnicznej o ziarnach zorientowanych | |
| EP3260575A4 (en) | Galvanized steel sheet | |
| PL3150290T3 (pl) | Sposób wytwarzania walcowanego na gorąco arkusza stalowego |