FI93126C - Rostfritt austenit-ferrit-stål - Google Patents
Rostfritt austenit-ferrit-stål Download PDFInfo
- Publication number
- FI93126C FI93126C FI891783A FI891783A FI93126C FI 93126 C FI93126 C FI 93126C FI 891783 A FI891783 A FI 891783A FI 891783 A FI891783 A FI 891783A FI 93126 C FI93126 C FI 93126C
- Authority
- FI
- Finland
- Prior art keywords
- stainless steel
- weight
- heat treatment
- steel alloy
- austenitic
- Prior art date
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
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Glass Compositions (AREA)
Claims (6)
1. Austenitisk-ferritisk rostfri ställegering, kännetecknad därav, att den har ytterst god 5 korrosionsbeständighet samt ett högt bearbetningsindex, en läg molybdenhalt och en hög kopparhalt, vilken legering lösts medelst värmebehandling vid en temperatur Over 900 °C och därefter snabbt avkylts vid omgivningens temperatur, varvid legeringen har följande komposition:
10 C < 0,06 vikt-% Si < 1,2 " Mn < 3 21 < Cr < 25 " 3 < Ni < 6 " 15 0,06 < N < 0,30 " Mo < 1 " 1 < Cu < 3,5 " och resten utgörs av järn.
2. Rostfri ställegering enligt patentkravet 1, 20 kännetecknad därav, att den har följande komposition: C = 0,02 vikt -% Si = 0,6 ” Mn = 1,9 "
25 Ni = 4,1 " Cr = 23,5 " Mo = 0,13 " N = 0,1 " Cu = 1,6 " .
3. Rostfri ställegering enlig patentkravet 1, kännetecknad därav, att den har följande kom-position: C = 0,02 vikt-% Si = 0,5 "
35 Mn « 2 " 93126 Ni = 3,9 ” Cr = 24,3 " Mo = 0,14 " N = 0,09 "
4. Rostfrl ställegering enligt nägot av patentkra-ven 1-3, kännetecknad därav, att kopparn lösts medelst värmebehandllng vld en temperatur av minst 1 600 °C, med efterföljande äterbehandling vid 1 180 °C 10 efter stelningen.
5. Ställegering enligt patentkravet 4, kännetecknad därav, att legeringen underkastas värmebe-handling, genom utfällning av den delvis lösta kopparn, vid en temperatur av 300 - 500 °C.
5 Cu = 2,8 " .
6. Rostfri ställegering enligt patentkravet 5, kännetecknad därav, att värmebehandlingen ut-förs i 5 timmar vid en temperatur av 400 °C. « I i
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8805045A FR2630132B1 (fr) | 1988-04-15 | 1988-04-15 | Acier inoxydable austeno-ferritique |
| FR8805045 | 1988-04-15 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| FI891783A0 FI891783A0 (sv) | 1989-04-14 |
| FI891783A FI891783A (sv) | 1989-10-16 |
| FI93126B FI93126B (sv) | 1994-11-15 |
| FI93126C true FI93126C (sv) | 1995-02-27 |
Family
ID=9365363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI891783A FI93126C (sv) | 1988-04-15 | 1989-04-14 | Rostfritt austenit-ferrit-stål |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0337846B1 (sv) |
| AT (1) | ATE89874T1 (sv) |
| CA (1) | CA1340030C (sv) |
| DE (1) | DE68906708T2 (sv) |
| FI (1) | FI93126C (sv) |
| FR (1) | FR2630132B1 (sv) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0750053B1 (en) * | 1994-12-16 | 2001-10-10 | Sumitomo Metal Industries, Ltd. | Duplex stainless steel excellent in corrosion resistance |
| JP3508095B2 (ja) * | 1999-06-15 | 2004-03-22 | 株式会社クボタ | 耐熱疲労性・耐腐食疲労性およびドリル加工性等に優れたフェライト−オーステナイト二相ステンレス鋼および製紙用サクションロール胴部材 |
| WO2005073422A1 (ja) * | 2004-01-29 | 2005-08-11 | Jfe Steel Corporation | オーステナイト・フェライト系ステンレス鋼 |
| TWI394848B (zh) | 2007-10-10 | 2013-05-01 | Nippon Steel & Sumikin Sst | 雙相不銹鋼線材、鋼線及螺釘以及其製造方法 |
| SE533635C2 (sv) | 2009-01-30 | 2010-11-16 | Sandvik Intellectual Property | Austenitisk rostfri stållegering med låg nickelhalt, samt artikel därav |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1158614A (en) * | 1967-03-16 | 1969-07-16 | Langley Alloys Ltd | Improvement in Stainless Steels |
| GB1456634A (en) * | 1972-09-13 | 1976-11-24 | Langley Alloys Ltd | High strength stainless steel having a high resistance to corro sive and abrasive wear in corrosive environments particularly chloride environments |
| CA1242095A (en) * | 1984-02-07 | 1988-09-20 | Akira Yoshitake | Ferritic-austenitic duplex stainless steel |
| SE451465B (sv) * | 1984-03-30 | 1987-10-12 | Sandvik Steel Ab | Ferrit-austenitiskt rostfritt stal mikrolegerat med molybden och koppar och anvendning av stalet |
| US4612069A (en) * | 1984-08-06 | 1986-09-16 | Sandusky Foundry & Machine Company | Pitting resistant duplex stainless steel alloy |
-
1988
- 1988-04-15 FR FR8805045A patent/FR2630132B1/fr not_active Expired - Lifetime
-
1989
- 1989-03-30 AT AT89400888T patent/ATE89874T1/de not_active IP Right Cessation
- 1989-03-30 EP EP89400888A patent/EP0337846B1/fr not_active Expired - Lifetime
- 1989-03-30 DE DE8989400888T patent/DE68906708T2/de not_active Expired - Fee Related
- 1989-04-14 CA CA000596675A patent/CA1340030C/fr not_active Expired - Fee Related
- 1989-04-14 FI FI891783A patent/FI93126C/sv not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE68906708T2 (de) | 1993-09-16 |
| EP0337846B1 (fr) | 1993-05-26 |
| FI93126B (sv) | 1994-11-15 |
| FI891783A0 (sv) | 1989-04-14 |
| FR2630132B1 (fr) | 1990-08-24 |
| FR2630132A1 (fr) | 1989-10-20 |
| CA1340030C (fr) | 1998-09-08 |
| ATE89874T1 (de) | 1993-06-15 |
| EP0337846A1 (fr) | 1989-10-18 |
| FI891783A (sv) | 1989-10-16 |
| DE68906708D1 (de) | 1993-07-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB | Publication of examined application | ||
| FG | Patent granted |
Owner name: USINOR INDUSTEEL (FRANCE) |
|
| MA | Patent expired |