DE60220749D1 - Steel with excellent properties, moldability with machine tools, after heat treatment, excellent mechanical properties and process for its preparation - Google Patents
Steel with excellent properties, moldability with machine tools, after heat treatment, excellent mechanical properties and process for its preparationInfo
- Publication number
- DE60220749D1 DE60220749D1 DE60220749T DE60220749T DE60220749D1 DE 60220749 D1 DE60220749 D1 DE 60220749D1 DE 60220749 T DE60220749 T DE 60220749T DE 60220749 T DE60220749 T DE 60220749T DE 60220749 D1 DE60220749 D1 DE 60220749D1
- Authority
- DE
- Germany
- Prior art keywords
- weight
- properties
- steel
- moldability
- preparation
- 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.)
- Expired - Lifetime
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
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A steel having excellent workability properties by machine-tools and, after a hardening thermal treatment, excellent mechanical properties and almost non existent size variations and internal tensions, comprising an amount lower than 0.25% by weight of carbon; 2,5 to 4,5% by weight of nickel; 2,5 to 4,55 by weight of molybdenum; an amount lower than 0.25% by weight of vanadium and amounts comprised between 0 and 1,1% by weight of at least one of the elements selected from manganese, silicon and chromium; the remaining up to 100 being iron, impurities excluded. <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI20011402 | 2001-07-02 | ||
IT2001MI001402A ITMI20011402A1 (en) | 2001-07-02 | 2001-07-02 | STEEL WITH EXCELLENT WORKABILITY PROPERTIES TO MACHINE TOOLS AND AFTER HARDENING HEAT TREATMENT EXCELLENT MECHANICAL PROPERTIES |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60220749D1 true DE60220749D1 (en) | 2007-08-02 |
DE60220749T2 DE60220749T2 (en) | 2008-03-06 |
Family
ID=11447984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60220749T Expired - Lifetime DE60220749T2 (en) | 2001-07-02 | 2002-05-21 | Steel with excellent properties, moldability with machine tools, after heat treatment, excellent mechanical properties and process for its preparation |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1283277B1 (en) |
AT (1) | ATE365235T1 (en) |
DE (1) | DE60220749T2 (en) |
ES (1) | ES2289028T3 (en) |
IT (1) | ITMI20011402A1 (en) |
PT (1) | PT1283277E (en) |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2624687A (en) * | 1949-01-03 | 1953-01-06 | Bower Roller Bearing Co | Process of heat-treating alloy steel |
US2707680A (en) * | 1952-08-29 | 1955-05-03 | Heppenstall Co | Alloy of iron, nickel, and molybdenum |
GB753491A (en) * | 1953-07-30 | 1956-07-25 | Heppenstall Co | Improvements in or relating to iron, nickel and molybdenum steel alloy and articles made therefrom |
SE363351B (en) * | 1972-05-26 | 1974-01-14 | Stora Kopparbergs Bergslags Ab | |
US3912553A (en) * | 1973-10-10 | 1975-10-14 | Finkl & Sons Co | Press forging die |
US3954517A (en) * | 1975-07-22 | 1976-05-04 | The Timken Company | Method for making carburized bearing members |
JPH0250910A (en) * | 1988-08-15 | 1990-02-20 | Nippon Steel Corp | Production of steel plate for die having good heat fatigue characteristic |
JP2881869B2 (en) * | 1989-12-06 | 1999-04-12 | 大同特殊鋼株式会社 | Steel for plastic molds with excellent weldability |
FR2666351B1 (en) * | 1990-08-29 | 1993-11-12 | Creusot Loire Industrie | PROCESS FOR THE DEVELOPMENT OF A TOOL STEEL, ESPECIALLY FOR THE MANUFACTURE OF MOLDS AND STEEL OBTAINED BY THIS PROCESS. |
JP3066998B2 (en) * | 1992-06-11 | 2000-07-17 | 株式会社日本製鋼所 | Method of manufacturing high-low pressure integrated turbine rotor |
FR2726287B1 (en) * | 1994-10-31 | 1997-01-03 | Creusot Loire | LOW ALLOY STEEL FOR THE MANUFACTURE OF MOLDS FOR PLASTICS OR FOR RUBBER |
KR100374980B1 (en) * | 1999-02-12 | 2003-03-06 | 히다찌긴조꾸가부시끼가이사 | High strength steel for dies with excellent machinability |
-
2001
- 2001-07-02 IT IT2001MI001402A patent/ITMI20011402A1/en unknown
-
2002
- 2002-05-21 ES ES02010286T patent/ES2289028T3/en not_active Expired - Lifetime
- 2002-05-21 EP EP02010286A patent/EP1283277B1/en not_active Expired - Lifetime
- 2002-05-21 PT PT02010286T patent/PT1283277E/en unknown
- 2002-05-21 DE DE60220749T patent/DE60220749T2/en not_active Expired - Lifetime
- 2002-05-21 AT AT02010286T patent/ATE365235T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ES2289028T3 (en) | 2008-02-01 |
ATE365235T1 (en) | 2007-07-15 |
DE60220749T2 (en) | 2008-03-06 |
EP1283277B1 (en) | 2007-06-20 |
EP1283277A1 (en) | 2003-02-12 |
ITMI20011402A1 (en) | 2003-01-02 |
PT1283277E (en) | 2007-09-27 |
ITMI20011402A0 (en) | 2001-07-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: LUCCHINI RS S.P.A., BRESCIA, IT |