SU629243A1 - High-temperature steel - Google Patents
High-temperature steelInfo
- Publication number
- SU629243A1 SU629243A1 SU772487017A SU2487017A SU629243A1 SU 629243 A1 SU629243 A1 SU 629243A1 SU 772487017 A SU772487017 A SU 772487017A SU 2487017 A SU2487017 A SU 2487017A SU 629243 A1 SU629243 A1 SU 629243A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- temperature steel
- steel
- manufacture
- resistant
- yttrium
- Prior art date
Links
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Description
Изобретение относитс к производс ву жаростойких сталей, примен емых д изготовлени литых деталей термического и коррозионностойкого оборудовани в машиностроительной, нефт ной и химической промышленности.The invention relates to the production of heat-resistant steels used for the manufacture of molded parts of thermal and corrosion-resistant equipment in the engineering, petroleum and chemical industries.
Известна жаростойка сталь Щ, свес . %:Known heat resistant steel W, overhang. %:
держаща Углерод holding carbon
О,1-0,2 14,5-15,5 Хром 4,5-5,0 Алюминий 0,8-1,1 Кремний 0,7-1,0 Марганец 0,2-0,35 Молибден 0,15-0,25 Кальций 0,3-0,4 Барий . Остальное Железо С целью повышени физико-механических характеристик и окалиносгойкости предложенна сталь дополнительно содержит иттрий и РЗМ при следующем соотношении компонентов, вес. %:O, 1-0.2 14.5-15.5 Chromium 4.5-5.0 Aluminum 0.8-1.1 Silicon 0.7-1.0 Manganese 0.2-0.35 Molybdenum 0.15 -0.25 Calcium 0.3-0.4 Barium. Remaining Iron In order to improve the physicomechanical characteristics and scaling, the proposed steel additionally contains yttrium and REM in the following ratio of components, weight. %:
0,1-0,2 15,5-21,5 3,О-5,О0.1-0.2 15.5-21.5 3, O-5, O
0,8-1,2 0,8-1,2 0,1-0,3 О,15-О,25 0,О4-О,1 0,1-0,4 0,02-0,05 Остальное0.8-1.2 0.8-1.2 0.1-0.3 O, 15-O, 25 0, O4-O, 1 0.1-0.4 0.02-0.05 Else
,QСталь можег также содержать примеси: серу до О,ОЗ и фосфор до 0,05., QSteel can also contain impurities: sulfur to O, OZ and phosphorus to 0.05.
Увеличение содержани хрома и введение иттри и РЗМ способствуют повышению физико-механических характеристик стали, стойкости к растрескиванию и против химического разрушени поверхности деталей в газовых средах при температурах выше 55О С, работающих в ненагруженном или слабонагруженном состо ни х. Предложенна сталь может быть использована при изготовлении фасонных отливок в сухие песчаные формы и литьем по выплавл емым модел м с толщиной стенок 5-35 мм.An increase in the chromium content and the introduction of yttrium and rare-earth metals contribute to the improvement of the physicomechanical characteristics of steel, resistance to cracking and against chemical destruction of the surface of parts in gaseous media at temperatures above 55 ° C operating in an unloaded or lightly loaded state. The proposed steel can be used in the manufacture of shaped castings in dry sand molds and by casting on melted models with a wall thickness of 5-35 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772487017A SU629243A1 (en) | 1977-05-19 | 1977-05-19 | High-temperature steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772487017A SU629243A1 (en) | 1977-05-19 | 1977-05-19 | High-temperature steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU629243A1 true SU629243A1 (en) | 1978-10-25 |
Family
ID=20709422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772487017A SU629243A1 (en) | 1977-05-19 | 1977-05-19 | High-temperature steel |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU629243A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5045404A (en) * | 1989-03-27 | 1991-09-03 | Nippon Steel Corporation | Heat-resistant stainless steel foil for catalyst-carrier of combustion exhaust gas purifiers |
-
1977
- 1977-05-19 SU SU772487017A patent/SU629243A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5045404A (en) * | 1989-03-27 | 1991-09-03 | Nippon Steel Corporation | Heat-resistant stainless steel foil for catalyst-carrier of combustion exhaust gas purifiers |
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