PL170458B1 - Ferritic heat-resistant steel with increased susceptibility to cold plastic deformation - Google Patents
Ferritic heat-resistant steel with increased susceptibility to cold plastic deformationInfo
- Publication number
- PL170458B1 PL170458B1 PL30084293A PL30084293A PL170458B1 PL 170458 B1 PL170458 B1 PL 170458B1 PL 30084293 A PL30084293 A PL 30084293A PL 30084293 A PL30084293 A PL 30084293A PL 170458 B1 PL170458 B1 PL 170458B1
- Authority
- PL
- Poland
- Prior art keywords
- max
- plastic deformation
- resistant steel
- increased susceptibility
- ferritic heat
- Prior art date
Links
Landscapes
- Catalysts (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
1. Ferrytyczna stt^l ż.aroodporna o zwiększonej podatności do odkształceń plastycznyeh na zimno, znamienna tym, że zawiera wagowo max. 0,03% C, do 0,1% Mn, do 0,1% Si, max. 0,015% S i P, 19,5-21,0% Cr, 4,6-5,4% Al, do 0,8% co najmniej dwóch pierwiastków z grupy obejmującej Zr, Hf, Ce, La, Y, Pr, Nd i Sm, max. 3% Ni, max. 0,15% Cu, max. 0,3% co najmniej jednego z pierwiastków z grupy obejmującej V, Ti, Nb i Ta oraz max. 0,03% pierwiastków z grupy obejmującej Cd, Pb, Sn, Sb, Bi, Ag, Se, Te i Be, reszta Fe.1. Ferritic heat-resistant steel with increased susceptibility to cold plastic deformation, characterized in that it contains by weight max. 0.03% C, up to 0.1% Mn, up to 0.1% Si, max. 0.015% S and P, 19.5-21.0% Cr, 4.6-5.4% Al, up to 0.8% of at least two elements from the group consisting of Zr, Hf, Ce, La, Y, Pr, Nd and Sm, max. 3% Ni, max. 0.15% Cu, max. 0.3% of at least one element from the group consisting of V, Ti, Nb and Ta and max. 0.03% elements from the group consisting of Cd, Pb, Sn, Sb, Bi, Ag, Se, Te and Be, the balance Fe.
Description
Przedmiotem wynalazku jest ferrytyczna stal żaroodporna o zwiększonej podatności do odkształceń plastycznych na zimno, przeznaczona głównie na foliowe nośniki katalizatorów dopalania spalin oraz elementy oporowogrzejne.The subject of the invention is ferritic heat-resistant steel with increased susceptibility to cold plastic deformation, intended mainly for foil carriers of exhaust gas afterburning catalysts and resistance heating elements.
Znana jest z polskiego opisu patentowego nr 133 001 stal żaroodporna ferrytyczna przeznaczona na elementy grzejne. Stal ta znamiennajest tym, że zawiera wagowo 20,0 do 22,0% Cr, 6,1 do 6,5% Al, 0,05 do 0,50% Zr. Ponadto stal ta zawiera wagowo do 0,06% C, od 0,1 do 0,8% Mn, od 0,3 do 0,8% Si, do 0,035% P, do 0,020% S, do 0,5%Ni, do 0,3% Cu, od 0,05 do 1,0% Zr, Ce i La łącznie, reszta Fe i nieuniknione zanieczyszczenia.A ferritic heat-resistant steel for heating elements is known from the Polish patent specification No. 133 001. The steel is characterized in that it contains 20.0 to 22.0% Cr, 6.1 to 6.5% Al, 0.05 to 0.50% Zr by weight. Moreover, this steel contains up to 0.06% by weight of C, from 0.1 to 0.8% Mn, from 0.3 to 0.8% Si, up to 0.035% P, up to 0.020% S, up to 0.5% Ni , up to 0.3% Cu, from 0.05 to 1.0% Zr, Ce and La combined, the rest of Fe and the inevitable impurities.
Znana jest również z polskiego opisu patentowego nr 99 945 stal żaroodporna ferrytyczna przeznaczona na oporowe elementy grzejne pracujące w temperaturze 1250°C zawierająca wagowo do 0,10% C, 19,0 do 21,0% Cr, 4,0 do 6,0% Al, 0,1 do 0,8% Mn, 0,3 do 0,8% Si, do 0,035% P, do 0,020% S, do 0,5% Ni, do 0,3% Cu, 0,02 do 1,00% Zr, Ce i/lub La znamienna tym, ze zawiera wagowo 0,1 do 0,9% Nb.A ferritic heat-resistant steel is also known from the Polish patent specification No. 99 945 intended for resistance heating elements operating at a temperature of 1250 ° C, containing up to 0.10% C by weight, 19.0 to 21.0% Cr, 4.0 to 6.0 % Al, 0.1 to 0.8% Mn, 0.3 to 0.8% Si, up to 0.035% P, up to 0.020% S, up to 0.5% Ni, up to 0.3% Cu, 0.02 to 1.00% Zr, Ce and / or La characterized in that it comprises 0.1 to 0.9% by weight of Nb.
Istota rozwiązania według wynalazku polega na tym, że stal zawiera max. 0,03% C, do 0,1% Mn, do 0,1% Si, max. 0,015% S i P, 19,5-21,0% Cr, 4,6-5,4% Al, do 0,8% co najmniej dwóch pierwiastków z grupy obejmującej Zr, Hf, Ce, La, Y, Pr, Nd i Sm, max. 3% Ni, max. 0,15% Cu, max. 0,3% co najmniej jednego z pierwiastków z grupy obejmującej V, Ti, Nb i Ta oraz max. 0,03% pierwiastków z grupy obejmującej Cd, Pb, Sn, Bi, Ag, Se, Te i Be, reszta Fe, przy czym korzystnym jest aby stosunek zawartości Cr do Al wynosił 3,9-4,2.The essence of the solution according to the invention is that the steel contains max. 0.03% C, up to 0.1% Mn, up to 0.1% Si, max. 0.015% S and P, 19.5-21.0% Cr, 4.6-5.4% Al, up to 0.8% of at least two elements from the group consisting of Zr, Hf, Ce, La, Y, Pr, Nd and Sm, max. 3% Ni, max. 0.15% Cu, max. 0.3% of at least one of the elements in the group consisting of V, Ti, Nb and Ta, and max. 0.03% of elements from the group consisting of Cd, Pb, Sn, Bi, Ag, Se, Te and Be, the remainder Fe, it is preferred that the ratio of Cr to Al is 3.9-4.2.
Stal według wynalazku posiada zwiększoną podatność do odkształceń plastycznych na zimno oraz zwiększoną wysokotemperaturową odporność korozyjną.The steel according to the invention has increased susceptibility to cold deformation and increased high-temperature corrosion resistance.
Zwiększona podatność do odkształceń plastycznych na zimno pozwala na wykonanie z tej stali cienkiej taśmy - folii o grubości 0,04-0,1 mm przeznaczonej na nośniki katalizatorów metalicznych do dopalania spalin silników samochodowych, natomiast zwiększona wysokotemperaturowa odporność korozyjna pozwala na stosowanie stali według wynalazku w środowisku spalin silników samochodowych w temperaturze 900-1200°C. Ponadto powierzchnia wyrobów z tej stali charakteryzuje się dobrą przyczepnością umożliwiającą naniesienie na nią warstw katalitycznych.Increased susceptibility to cold plastic deformation allows for the production of a thin strip of this steel - a film with a thickness of 0.04-0.1 mm intended for metal catalyst carriers for afterburning of car engine exhaust gases, while the increased high-temperature corrosion resistance allows the use of steel according to the invention in the environment of car engine exhaust gases at a temperature of 900-1200 ° C. Moreover, the surface of products made of this steel is characterized by good adhesion, which enables the application of catalytic layers.
Przykład: W próżniowym piecu indukcyjnym wykonano wytop otrzymując stal o następującym składzie: C-0,02%, Mn-0,1%, Si-0,1%, P-0,008%, S-0,005%, Cr-20,1%, Ni-0,20%, Cu-0,02%, T1-0,02%, Zr-0,07%, Ce i La-0,05%, Al-5,2%.Example: In a vacuum induction furnace, smelting was made to obtain steel with the following composition: C-0.02%, Mn-0.1%, Si-0.1%, P-0.008%, S-0.005%, Cr-20.1 %, Ni-0.20%, Cu-0.02%, T1-0.02%, Zr-0.07%, Ce and La-0.05%, Al-5.2%.
Materiał ten został przerobiony na taśmę o grubości 0,09 mm, która po obróbce cieplnej posiadała wytrzymałość na rozciąganie Rm=550-750 MPa, wydłużenie A5=30-50% i twardość 180-240 HB.This material was processed into a strip with a thickness of 0.09 mm, which after heat treatment had a tensile strength Rm = 550-750 MPa, elongation A5 = 30-50% and a hardness of 180-240 HB.
Wykonano również drut o średnicach 4 mm oraz 0,7 mm. Próbki wykazały następujące własności: Rm=550-750 MPa, Ro,2=350-450 MPa, /05=30-55%% Z=60-80%. Próba żaroodpomości drutów o średnicy 0,7 mm w temperaturze 1300°C z 2 minutowym nagrzewaniem i studzeniem wykazała wysoką trwałość 60-83 godziny.A wire with diameters of 4 mm and 0.7 mm was also made. The samples showed the following properties: R m = 550-750 MPa, Ro, 2 = 350-450 MPa, / 05 = 30-55 %% Z = 60-80%. The heat resistance test of 0.7 mm diameter wires at the temperature of 1300 ° C with 2 minutes of heating and cooling showed a high durability of 60-83 hours.
170 458170 458
Departament Wydawnictw UP RP. Nakład 90 egz. Cena 2,00 złPublishing Department of the UP RP. Circulation of 90 copies. Price PLN 2.00
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL30084293A PL170458B1 (en) | 1993-10-22 | 1993-10-22 | Ferritic heat-resistant steel with increased susceptibility to cold plastic deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL30084293A PL170458B1 (en) | 1993-10-22 | 1993-10-22 | Ferritic heat-resistant steel with increased susceptibility to cold plastic deformation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL300842A1 PL300842A1 (en) | 1995-05-02 |
| PL170458B1 true PL170458B1 (en) | 1996-12-31 |
Family
ID=20061076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL30084293A PL170458B1 (en) | 1993-10-22 | 1993-10-22 | Ferritic heat-resistant steel with increased susceptibility to cold plastic deformation |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL170458B1 (en) |
-
1993
- 1993-10-22 PL PL30084293A patent/PL170458B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL300842A1 (en) | 1995-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20100035700A (en) | Al-plated steel sheet for exhaust gas passageway members of motorcycles excellent in high-temperature strength and members | |
| JP4468137B2 (en) | Ferritic stainless steel material and automotive exhaust gas path member with excellent thermal fatigue characteristics | |
| US12137501B2 (en) | Method for producing Fe—Cr alloy | |
| US3905780A (en) | Oxidation-resistant low alloy steel with Al coating | |
| EP2659019B1 (en) | Aluminum coated steel sheet having excellent oxidation resistance and heat resistance | |
| JP2738209B2 (en) | High strength and high ductility hot-dip galvanized steel sheet with excellent plating adhesion | |
| KR20210044835A (en) | Ferritic stainless steel sheet and its manufacturing method, and Al-based plated stainless steel sheet | |
| KR20190012216A (en) | Ferritic stainless steel plate | |
| PL170458B1 (en) | Ferritic heat-resistant steel with increased susceptibility to cold plastic deformation | |
| US3909250A (en) | Oxidation-resistant ferrous alloy | |
| JP2001271148A (en) | HIGH Al STEEL SHEET EXCELLENT IN HIGH TEMPERATURE OXIDATION RESISTANCE | |
| JPH07268554A (en) | Ferritic stainless steel sheet for automobile exhaust system with excellent formability and heat resistance | |
| JP3817173B2 (en) | Iron-chromium-aluminum alloy for heating wire | |
| JPH06212363A (en) | Fe-Cr-Al alloy steel with excellent high-temperature oxidation resistance and high-temperature durability | |
| JP2004018914A (en) | Ferritic stainless steel with excellent high-temperature strength, high-temperature oxidation resistance and high-temperature salt damage resistance | |
| JPH07233451A (en) | Al plated stainless steel sheet excellent in high temperature oxidation resistance | |
| JPH076038B2 (en) | Oxidation resistance Fe-Cr-Al alloy | |
| JP2000178693A (en) | Ferritic stainless steel sheet with high temperature strength during intermittent heating and oxide scale that is difficult to peel off | |
| JPS62199759A (en) | Aluminum-diffused steel sheet having excellent oxidation resistance high-temperature strength and its production | |
| JP7479209B2 (en) | Ferritic stainless steel sheet, method for producing the same, and automobile exhaust system part | |
| JPH06108268A (en) | Ferritic stainless steel foil and its manufacturing method | |
| JP7475205B2 (en) | Ferritic stainless steel sheet, method for producing the same, and automobile exhaust system part | |
| JP7479210B2 (en) | Ferritic stainless steel sheet, method for producing the same, and automobile exhaust system part | |
| JPH02118053A (en) | heat resistant alloy | |
| JP4302251B2 (en) | Hot-dip galvanized steel sheet with excellent workability and high temperature strength |