FI80481B - Anvaendning av en kromhaltig legering. - Google Patents
Anvaendning av en kromhaltig legering. Download PDFInfo
- Publication number
- FI80481B FI80481B FI860944A FI860944A FI80481B FI 80481 B FI80481 B FI 80481B FI 860944 A FI860944 A FI 860944A FI 860944 A FI860944 A FI 860944A FI 80481 B FI80481 B FI 80481B
- Authority
- FI
- Finland
- Prior art keywords
- sulfuric acid
- weight
- resistant
- use according
- chromium
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Catalysts (AREA)
- Carbon And Carbon Compounds (AREA)
- Luminescent Compositions (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Pyrane Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Glass Compositions (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Secondary Cells (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Claims (7)
1. Användning av en molybdenfri, kromhaltig le-gering innehällande 5 21-35 vlkt-% krom, 30-70 vikt-% järn, 2-40 vikt-% nickel, 0-20 vikt-% raangan samt sedvanliga som föroreningar förekommande grundämnen 10 säsom koi, kisel, fosfor, svavel, kväve, aluminium, kop-par, vanadin, titan, tantal och niobium, som rämaterial för artiklar beständiga mot svavelsyrahalter över 96 %.
2. Användning enligt patentkravet 1, k ä n n e -t e c k n a d därav, att kromhalten är 23-32 vikt-%.
3. Användning enligt patentkravet 1 eller 2, kännetecknad därav, att rämaterialet är bestän-digt mot svavelsyrahalter av högst 100, företrädesvis 98,0-99,5 vikt-%.
4. Användning enligt nägot av patentkraven 1-3, 20 kännetecknad därav, att rämaterialet är bestän-digt mot svavelsyrahalter av 100-122,5 vikt-% (oleum).
5. Användning enligt nägot av patentkraven 1-4, kännetecknad därav, att rämaterialet är beständigt mot svavelsyra som har en temperatur av högst 25 350°C, företrädesvis 50-250°C, i synnerhet 80-190eC.
6. Användning enligt nägot av patentkraven 1-5, kännetecknad därav, att legeringen användes för tillverkning av värmeväxlare, rörledningar, pumpar, pump-delar, instrument, flänsar, filterkorgar, rökfilter, 30 droppseparatorer, behällare, absorptionsanordningar för S03-haltiga gaser och torkanordningar för gaser, i vilka torkmedlet utgörs av svavelsyra.
7. Användning enligt nägot av patentkraven 1-6, kännetecknad därav, att av legeringen till- 35 verkade anordningar användes i svavelsyra producerande fabriker för mellan- och slutabsorption vid en temperatur av 80-190°C och dä svavelsyrahalter är 98,0-99,5 vikt-% H2S04.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853508532 DE3508532A1 (de) | 1985-03-09 | 1985-03-09 | Verwendung einer chromhaltigen legierung |
| DE3508532 | 1985-03-09 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| FI860944A0 FI860944A0 (fi) | 1986-03-06 |
| FI860944A FI860944A (fi) | 1986-09-10 |
| FI80481B true FI80481B (fi) | 1990-02-28 |
| FI80481C FI80481C (sv) | 1990-06-11 |
Family
ID=6264782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI860944A FI80481C (sv) | 1985-03-09 | 1986-03-06 | Användning av en kromhaltig legering |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0200862B1 (sv) |
| JP (1) | JPS61207551A (sv) |
| AT (1) | ATE34779T1 (sv) |
| AU (1) | AU583898B2 (sv) |
| CA (1) | CA1273230A (sv) |
| DE (2) | DE3508532A1 (sv) |
| ES (1) | ES8802377A1 (sv) |
| FI (1) | FI80481C (sv) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3739903A1 (de) * | 1987-11-25 | 1989-06-08 | Bayer Ag | Verwendung einer chromhaltigen legierung |
| DE3830365C2 (de) * | 1988-09-07 | 1996-06-27 | Metallgesellschaft Ag | Verwendung von ferritischen Chrom - Molybdän-Stählen als gegen konzentrierte Schwefelsäure beständigem Werkstoff |
| DE4342188C2 (de) * | 1993-12-10 | 1998-06-04 | Bayer Ag | Austenitische Legierungen und deren Verwendung |
| FR2939052B1 (fr) * | 2008-12-01 | 2010-12-10 | Rhodia Operations | Installation de cristallisation d'acide adipique |
| MA53483A (fr) * | 2018-08-29 | 2021-12-08 | Chemetics Inc | Alliage inoxydable austénitique présentant une résistance à la corrosion supérieure |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3649187A (en) * | 1970-02-09 | 1972-03-14 | Monsanto Co | Corrosion resistant apparatus |
| US3758296A (en) * | 1970-10-29 | 1973-09-11 | Lewis & Co Inc Charles | Corrosion resistant alloy |
| JPS5435171B2 (sv) * | 1973-07-13 | 1979-10-31 | ||
| US3844774A (en) * | 1973-09-24 | 1974-10-29 | Carondelet Foundry Co | Corrosion-resistant alloys |
| US3947266A (en) * | 1974-05-17 | 1976-03-30 | Carondelet Foundry Company | Corrosion-resistant alloys |
| JPS5538957A (en) * | 1978-09-13 | 1980-03-18 | Japan Steel Works Ltd:The | Austenitic stainless cast steel |
| US4329173A (en) * | 1980-03-31 | 1982-05-11 | Carondelet Foundry Company | Alloy resistant to corrosion |
| US4576813A (en) * | 1983-07-05 | 1986-03-18 | Monsanto Company | Heat recovery from concentrated sulfuric acid |
| US4670242A (en) * | 1984-11-09 | 1987-06-02 | Monsanto Company | Heat recovery from concentrated sulfuric acid |
-
1985
- 1985-03-09 DE DE19853508532 patent/DE3508532A1/de not_active Withdrawn
-
1986
- 1986-02-27 AT AT86102555T patent/ATE34779T1/de not_active IP Right Cessation
- 1986-02-27 DE DE8686102555T patent/DE3660261D1/de not_active Expired
- 1986-02-27 EP EP86102555A patent/EP0200862B1/de not_active Expired
- 1986-03-06 FI FI860944A patent/FI80481C/sv not_active IP Right Cessation
- 1986-03-07 CA CA000503590A patent/CA1273230A/en not_active Expired - Lifetime
- 1986-03-07 JP JP61048722A patent/JPS61207551A/ja active Pending
- 1986-03-07 AU AU54434/86A patent/AU583898B2/en not_active Ceased
- 1986-03-07 ES ES552799A patent/ES8802377A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES8802377A1 (es) | 1988-05-16 |
| FI860944A0 (fi) | 1986-03-06 |
| AU583898B2 (en) | 1989-05-11 |
| ATE34779T1 (de) | 1988-06-15 |
| EP0200862B1 (de) | 1988-06-01 |
| JPS61207551A (ja) | 1986-09-13 |
| AU5443486A (en) | 1986-09-11 |
| FI80481C (sv) | 1990-06-11 |
| FI860944A (fi) | 1986-09-10 |
| CA1273230A (en) | 1990-08-28 |
| DE3508532A1 (de) | 1986-09-18 |
| ES552799A0 (es) | 1988-05-16 |
| EP0200862A1 (de) | 1986-11-12 |
| DE3660261D1 (en) | 1988-07-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: BAYER AKTIENGESELLSCHAFT |