EP0708184A4 - High-strength austenitic heat-resisting steel with excellent weldability and good high-temperature corrosion resistance - Google Patents
High-strength austenitic heat-resisting steel with excellent weldability and good high-temperature corrosion resistanceInfo
- Publication number
- EP0708184A4 EP0708184A4 EP94914608A EP94914608A EP0708184A4 EP 0708184 A4 EP0708184 A4 EP 0708184A4 EP 94914608 A EP94914608 A EP 94914608A EP 94914608 A EP94914608 A EP 94914608A EP 0708184 A4 EP0708184 A4 EP 0708184A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- corrosion resistance
- temperature corrosion
- resisting steel
- austenitic heat
- excellent weldability
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
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)
Abstract
A high-strength austenitic heat-resisting steel that has excellent weldability and good high-temperature corrosion resistance and can exhibit excellent performance when used as the material of boilers to be used under the conditions becoming more and more severe. The steel comprises less than 0.02 % (by mass, the same will apply hereinbelow) of carbon, at most 1.5 % of silicon, 0.3-1.5 % of manganese, at most 0.02 % of phosphorus, at most 0.005 % of sulfur, 18-26 % of chromium, 20-40 % of nickel, 0.5-10.0 % of tungsten, 0.05-0.4 % of niobium, 0.01-0.2 % of titanium, 0.003-0.008 % of boron, 0.05-0.3 % of nitrogen, and if necessary at least one member of 0.5-2.0 % of molybdenum and/or 0.001-0.05 % of magnesium, 0.001-0.05 % of calcium and 0.001-0.15 % of rare earth element (REM), and the balance consisting of iron and inevitable impurities.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11195793A JPH06322488A (en) | 1993-05-13 | 1993-05-13 | High-strength austenitic heat resistant steel excellent in weldability and satisfactory in high temperature corrosion resistance |
| JP111957/93 | 1993-05-13 | ||
| PCT/JP1994/000767 WO1994026947A1 (en) | 1993-05-13 | 1994-05-12 | High-strength austenitic heat-resisting steel with excellent weldability and good high-temperature corrosion resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0708184A1 EP0708184A1 (en) | 1996-04-24 |
| EP0708184A4 true EP0708184A4 (en) | 1996-07-03 |
Family
ID=14574397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94914608A Withdrawn EP0708184A4 (en) | 1993-05-13 | 1994-05-12 | High-strength austenitic heat-resisting steel with excellent weldability and good high-temperature corrosion resistance |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0708184A4 (en) |
| JP (1) | JPH06322488A (en) |
| CA (1) | CA2162704A1 (en) |
| WO (1) | WO1994026947A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2185624A1 (en) * | 1995-10-17 | 1997-04-18 | John H. Culling | Tough weldable heat resistant alloy |
| JP4424471B2 (en) | 2003-01-29 | 2010-03-03 | 住友金属工業株式会社 | Austenitic stainless steel and method for producing the same |
| CN100406608C (en) * | 2005-04-18 | 2008-07-30 | 张光华 | Ultra-strong refractory steel |
| US7815848B2 (en) * | 2006-05-08 | 2010-10-19 | Huntington Alloys Corporation | Corrosion resistant alloy and components made therefrom |
| JP5670103B2 (en) * | 2010-06-15 | 2015-02-18 | 山陽特殊製鋼株式会社 | High strength austenitic heat resistant steel |
| JP5661001B2 (en) * | 2011-08-23 | 2015-01-28 | 山陽特殊製鋼株式会社 | High strength austenitic heat resistant steel with excellent post-aging toughness |
| JP5930635B2 (en) * | 2011-09-26 | 2016-06-08 | 山陽特殊製鋼株式会社 | Austenitic heat resistant steel having excellent high temperature strength and method for producing the same |
| JP5273266B2 (en) * | 2012-02-08 | 2013-08-28 | 新日鐵住金株式会社 | Double pipe and welded structure using the same |
| CN105939814B (en) * | 2014-01-27 | 2018-07-31 | 新日铁住金株式会社 | Ni based heat resistant alloys welding material and use welding metal and welding point made of it |
| JP6955322B2 (en) * | 2016-03-15 | 2021-10-27 | 山陽特殊製鋼株式会社 | Austenitic heat-resistant steel with excellent workability, high-temperature strength and toughness after aging |
| CN114032434B (en) * | 2021-10-27 | 2023-09-26 | 江苏金合特种合金材料有限公司 | Smelting of high corrosion resistant N08120 material and production process of large-caliber seamless pipe |
| CN115505820B (en) * | 2022-09-15 | 2024-01-05 | 山西太钢不锈钢股份有限公司 | Continuous casting method of niobium-containing high-nitrogen nickel-based alloy |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6333549A (en) * | 1986-07-29 | 1988-02-13 | Nippon Kokan Kk <Nkk> | Austenitic steel tube for boiler having resistance to corrosion by coal ash and its manufacture |
| JPS6411950A (en) * | 1987-07-03 | 1989-01-17 | Nippon Steel Corp | High-strength austenitic heat-resistant steel reduced in si content |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5681661A (en) * | 1979-12-06 | 1981-07-03 | Daido Steel Co Ltd | Heat resistant cast alloy |
| JPS56105458A (en) * | 1980-01-25 | 1981-08-21 | Daido Steel Co Ltd | Heat-resistant cast alloy |
| JPH0753898B2 (en) * | 1987-01-24 | 1995-06-07 | 新日本製鐵株式会社 | High strength austenitic heat resistant alloy |
-
1993
- 1993-05-13 JP JP11195793A patent/JPH06322488A/en not_active Withdrawn
-
1994
- 1994-05-12 CA CA 2162704 patent/CA2162704A1/en not_active Abandoned
- 1994-05-12 EP EP94914608A patent/EP0708184A4/en not_active Withdrawn
- 1994-05-12 WO PCT/JP1994/000767 patent/WO1994026947A1/en not_active Application Discontinuation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6333549A (en) * | 1986-07-29 | 1988-02-13 | Nippon Kokan Kk <Nkk> | Austenitic steel tube for boiler having resistance to corrosion by coal ash and its manufacture |
| JPS6411950A (en) * | 1987-07-03 | 1989-01-17 | Nippon Steel Corp | High-strength austenitic heat-resistant steel reduced in si content |
Non-Patent Citations (3)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 12, no. 242 (C - 510) 8 July 1988 (1988-07-08) * |
| PATENT ABSTRACTS OF JAPAN vol. 13, no. 182 (C - 591) 27 April 1989 (1989-04-27) * |
| See also references of WO9426947A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1994026947A1 (en) | 1994-11-24 |
| EP0708184A1 (en) | 1996-04-24 |
| CA2162704A1 (en) | 1994-11-24 |
| JPH06322488A (en) | 1994-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19951208 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE DK FR GB NL SE |
|
| A4 | Supplementary search report drawn up and despatched | ||
| AK | Designated contracting states |
Kind code of ref document: A4 Designated state(s): DE DK FR GB NL SE |
|
| 17Q | First examination report despatched |
Effective date: 19980604 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19981015 |