TW200607871A - Shaped steel excellent in fire resistance and producing method therefor - Google Patents
Shaped steel excellent in fire resistance and producing method thereforInfo
- Publication number
- TW200607871A TW200607871A TW094124884A TW94124884A TW200607871A TW 200607871 A TW200607871 A TW 200607871A TW 094124884 A TW094124884 A TW 094124884A TW 94124884 A TW94124884 A TW 94124884A TW 200607871 A TW200607871 A TW 200607871A
- Authority
- TW
- Taiwan
- Prior art keywords
- shaped steel
- alloy
- ratio
- fire resistance
- producing method
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract 4
- 239000010959 steel Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 239000000956 alloy Substances 0.000 abstract 6
- 229910045601 alloy Inorganic materials 0.000 abstract 6
- 150000001247 metal acetylides Chemical class 0.000 abstract 3
- 239000002244 precipitate Substances 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 238000009863 impact test Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Metal Rolling (AREA)
Abstract
A shaped steel, such as H-shaped steel, excellent in fire resistance, where a flange portion has 50% or more of a ratio of strength, 80% or less of yield ratio, and 100 J or more of impact strength of Charpy impact test at 0 DEG C, wherein the ratio of strength = (proof stress of 0.2% at 600 DEG C)/(yield strength at room temperature), and a producing method thereof are provided. The shaped steel comprises in mass percent (%): C:0.03-0.15; Mo: O.1- 0.6; V ≤ 0.35; and N: 0.002-0.012, and the balance being iron and residual impurities, wherein (x) a mol fraction of precipitate of alloy carbides and alloy carbonitrides at 600 DEG C is 0.3 % or more, and (y) the ratio of the mol fraction of precipitate of alloy carbides and alloy carbonitrides at 300 DEG C to the mol fraction of precipitate of alloy carbides and alloy carbonitrides at 600 DEG C is 2.0 or less.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004220337 | 2004-07-28 | ||
| JP2004220454 | 2004-07-28 | ||
| JP2005207185A JP2006063443A (en) | 2004-07-28 | 2005-07-15 | H-shaped steel excellent in fire resistance and production method therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200607871A true TW200607871A (en) | 2006-03-01 |
| TWI312372B TWI312372B (en) | 2009-07-21 |
Family
ID=34973110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW094124884A TWI312372B (en) | 2004-07-28 | 2005-07-22 | Shaped steel excellent in fire resistance and producing method therefor |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20080302453A1 (en) |
| EP (1) | EP1769097B1 (en) |
| JP (1) | JP2006063443A (en) |
| TW (1) | TWI312372B (en) |
| WO (1) | WO2006011618A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6421900B2 (en) * | 2016-08-29 | 2018-11-14 | 新日鐵住金株式会社 | Rolled H-section steel and its manufacturing method |
| CA3054279A1 (en) * | 2017-03-15 | 2018-09-20 | Nippon Steel Corporation | H-section steel and method of producing the same |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4990196A (en) * | 1988-06-13 | 1991-02-05 | Nippon Steel Corporation | Process for manufacturing building construction steel having excellent fire resistance and low yield ratio |
| JP2661845B2 (en) * | 1992-09-24 | 1997-10-08 | 新日本製鐵株式会社 | Manufacturing method of oxide-containing refractory section steel by controlled rolling |
| JP2760713B2 (en) * | 1992-09-24 | 1998-06-04 | 新日本製鐵株式会社 | Method for producing controlled rolled steel with excellent fire resistance and toughness |
| JP3718348B2 (en) * | 1998-07-31 | 2005-11-24 | 新日本製鐵株式会社 | High-strength and high-toughness rolled section steel and its manufacturing method |
| US6540848B2 (en) * | 2000-02-02 | 2003-04-01 | Kawasaki Steel Corporation | High strength, high toughness, seamless steel pipe for line pipe |
| JP2001247930A (en) * | 2000-03-06 | 2001-09-14 | Nkk Corp | Rolled shape steel excellent in earthquake resistance and fire resistance and its producing method |
| EP1338665B1 (en) * | 2000-10-31 | 2018-09-05 | JFE Steel Corporation | High tensile hot rolled steel sheet and method for production thereof |
| JP2003096534A (en) * | 2001-07-19 | 2003-04-03 | Mitsubishi Heavy Ind Ltd | High strength heat resistant steel, method of producing high strength heat resistant steel, and method of producing high strength heat resistant tube member |
-
2005
- 2005-07-15 JP JP2005207185A patent/JP2006063443A/en not_active Withdrawn
- 2005-07-22 TW TW094124884A patent/TWI312372B/en not_active IP Right Cessation
- 2005-07-26 WO PCT/JP2005/013999 patent/WO2006011618A1/en active Search and Examination
- 2005-07-26 US US11/658,348 patent/US20080302453A1/en not_active Abandoned
- 2005-07-26 EP EP05767835A patent/EP1769097B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP1769097A1 (en) | 2007-04-04 |
| TWI312372B (en) | 2009-07-21 |
| EP1769097B1 (en) | 2008-03-26 |
| JP2006063443A (en) | 2006-03-09 |
| US20080302453A1 (en) | 2008-12-11 |
| WO2006011618A1 (en) | 2006-02-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |