CA2312034A1 - Nitriding steel, method for obtaining same and parts formed with said steel - Google Patents
Nitriding steel, method for obtaining same and parts formed with said steel Download PDFInfo
- Publication number
- CA2312034A1 CA2312034A1 CA002312034A CA2312034A CA2312034A1 CA 2312034 A1 CA2312034 A1 CA 2312034A1 CA 002312034 A CA002312034 A CA 002312034A CA 2312034 A CA2312034 A CA 2312034A CA 2312034 A1 CA2312034 A1 CA 2312034A1
- Authority
- CA
- Canada
- Prior art keywords
- composition
- weight
- steel
- manufacturing
- nitriding
- 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.)
- Granted
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
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- 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
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/24—Nitriding
- C23C8/26—Nitriding of ferrous surfaces
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Steel (AREA)
- Ceramic Products (AREA)
- Saccharide Compounds (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Catalysts (AREA)
Abstract
The invention concerns a steel composition comprising, expressed in wt.%: 0.2 to 0.4 % of C; 0.8 to 2 % of Cr; 0.6 to 2 % of Mo; 0.05 to 0.4 % of Al; and as the case may be, not more than 0.5 % of Si; not more than 1.5 % of Mn; not more than 1.5 % Ni; not more than 0.5 % of V; the rest consisting of iron and residual impurities; said composition Cr, Mo, V and Al contents expressed in wt.% satisfies the following relationship: 4 </= 3Cr + Mo + V + 2Al </= 8. The invention also concerns a method for making treated and nitrided parts, made of said compositions.
Claims (12)
4 ~ 3Cr+Mo+V+2Al ~ 8. 1. Composition of nitriding steel comprising, expressed in% by weight, 0.2 to 0.4% of C, 0.8 to 2% of Cr, 0.6 to 2% of Mo, 0.05 to 0.4% Al, and optionally, at most 0.5% of Si, at most 1.5% of Mn, at most 1.5% of Ni, at most 0.5% of V, the remainder consisting of iron and residual impurities, the contents of this composition in Cr, Mo, V and Al, expressed in% in weight, satisfying the following relation:
4 ~ 3Cr + Mo + V + 2Al ~ 8.
4 ~ 3Cr+Mo+V+2Al ~ 8. 2. A nitriding steel composition according to claim 1, comprising, expressed in% by weight, 0.25 to 0.37% of C, 1.1 to 1.8% Cr, 0.8 to 1.5% of Mo, 0.1 to 0.3% Al, 0.2 to 1.1% of Mn, 0.5 to 1.3% of Ni, 0.1 to 0.4% of V, and optionally, at most 0.35% of Si, the remainder consisting of iron and residual impurities, the contents of this composition in Cr, Mo, V and Al, expressed in% in weight, satisfying the following relation:
4 ~ 3Cr + Mo + V + 2Al ~ 8.
a - constitution d'une charge destinée à obtenir une composition chimique selon l'une quelconque des revendications 1 à 4, b - élaboration de ladite charge dans un four à arc, c - réchauffage et transformation à chaud du lingot, d - traitement thermique d'homogénéisation de la structure et d'affinement du grain, e - traitement thermique d'emploi, et f - nitruration. 5. Method for manufacturing treated and nitrided parts, comprising following operations:
a - constitution of a charge intended to obtain a composition chemical according to any one of claims 1 to 4, b - preparation of said charge in an arc furnace, c - heating and hot transformation of the ingot, d - heat treatment to homogenize the structure and grain refinement, e - heat treatment for use, and f - nitriding.
7, dans lequel l'étape d comprend une normalisation à une température supérieure à celle du point critique AC3, un refroidissement à l'air et un revenu d'adoucissement à une température inférieure à celle du point critique AC1. 8. The manufacturing method according to any one of claims 5 to 7, in which step d comprises normalization at a temperature greater than that of the critical point AC3, air cooling and softening income at a temperature below that of the point critical AC1.
une température de 550-750°C. 9. Manufacturing method according to any one of claims 5 to 8 wherein step e comprises quenching from a temperature austenitization in the range of 900-1000 ° C, followed by tempering a temperature of 550-750 ° C.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR98/12209 | 1998-09-30 | ||
FR9812209A FR2783840B1 (en) | 1998-09-30 | 1998-09-30 | STEEL ALLOWING HIGH NITRURATION KINETICS, PROCESS FOR OBTAINING SAME AND PARTS FORMED THEREFROM |
PCT/FR1999/002297 WO2000018975A1 (en) | 1998-09-30 | 1999-09-28 | Nitriding steel, method for obtaining same and parts formed with said steel |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2312034A1 true CA2312034A1 (en) | 2000-04-06 |
CA2312034C CA2312034C (en) | 2010-06-01 |
Family
ID=9531010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2312034A Expired - Lifetime CA2312034C (en) | 1998-09-30 | 1999-09-28 | Nitriding steel, method for obtaining same and parts formed with said steel |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1044287B1 (en) |
AT (1) | ATE531832T1 (en) |
CA (1) | CA2312034C (en) |
DK (1) | DK1044287T3 (en) |
ES (1) | ES2374261T3 (en) |
FR (1) | FR2783840B1 (en) |
WO (1) | WO2000018975A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4142853B2 (en) * | 2001-03-22 | 2008-09-03 | 新日本製鐵株式会社 | High strength bolt with excellent delayed fracture resistance |
FR2884879B1 (en) * | 2005-04-22 | 2007-08-03 | Stephanois Rech Mec | TORQUE OF GUIDE ARMS WHOSE ONE IS OF PARTICULAR STEEL LEADING TO IMPROVED PERFORMANCE. |
DE102006025008B4 (en) | 2006-05-30 | 2022-09-15 | Schaeffler Technologies AG & Co. KG | Process for hardening running surfaces of roller bearing components |
DE102011088234A1 (en) * | 2011-12-12 | 2013-06-13 | Aktiebolaget Skf | component |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0756043B2 (en) * | 1988-09-27 | 1995-06-14 | マツダ株式会社 | Steel member manufacturing method |
JPH0445244A (en) * | 1990-06-09 | 1992-02-14 | Aichi Steel Works Ltd | Rapid nitriding steel excellent in fatigue strength |
JPH073392A (en) * | 1993-06-18 | 1995-01-06 | Nkk Corp | Steel for nitriding |
JP2885061B2 (en) * | 1994-04-20 | 1999-04-19 | 日本鋼管株式会社 | Method for producing nitrided steel member excellent in fatigue characteristics |
JPH0849058A (en) * | 1994-08-03 | 1996-02-20 | Nkk Corp | Production of wear resistant nitrided steel member small in heat treating strain |
JPH08176732A (en) * | 1994-12-27 | 1996-07-09 | Nkk Corp | Steel for nitriding having excellent machinability |
JP3069256B2 (en) * | 1995-01-12 | 2000-07-24 | 住友金属工業株式会社 | Nitriding steel with excellent toughness |
DE69617002T4 (en) * | 1995-05-15 | 2003-03-20 | Sumitomo Metal Industries, Ltd. | METHOD FOR PRODUCING HIGH-STRENGTH SEAMLESS STEEL TUBES WITH EXCELLENT SULFUR-INDUCED TENSION crack cracking resistance |
-
1998
- 1998-09-30 FR FR9812209A patent/FR2783840B1/en not_active Expired - Lifetime
-
1999
- 1999-09-28 DK DK99946245.0T patent/DK1044287T3/en active
- 1999-09-28 WO PCT/FR1999/002297 patent/WO2000018975A1/en active Application Filing
- 1999-09-28 EP EP99946245A patent/EP1044287B1/en not_active Expired - Lifetime
- 1999-09-28 CA CA2312034A patent/CA2312034C/en not_active Expired - Lifetime
- 1999-09-28 ES ES99946245T patent/ES2374261T3/en not_active Expired - Lifetime
- 1999-09-28 AT AT99946245T patent/ATE531832T1/en active
Also Published As
Publication number | Publication date |
---|---|
ES2374261T3 (en) | 2012-02-15 |
ATE531832T1 (en) | 2011-11-15 |
EP1044287B1 (en) | 2011-11-02 |
FR2783840B1 (en) | 2000-11-10 |
DK1044287T3 (en) | 2011-12-12 |
WO2000018975A1 (en) | 2000-04-06 |
CA2312034C (en) | 2010-06-01 |
EP1044287A1 (en) | 2000-10-18 |
FR2783840A1 (en) | 2000-03-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20190930 |