GB1063734A - Method of producing hardened steel products - Google Patents
Method of producing hardened steel productsInfo
- Publication number
- GB1063734A GB1063734A GB19972/64A GB1997264A GB1063734A GB 1063734 A GB1063734 A GB 1063734A GB 19972/64 A GB19972/64 A GB 19972/64A GB 1997264 A GB1997264 A GB 1997264A GB 1063734 A GB1063734 A GB 1063734A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hardened steel
- steel products
- steel
- austenitised
- rolls
- 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
Links
Classifications
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0231—Warm rolling
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0252—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment with application of tension
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S277/00—Seal for a joint or juncture
- Y10S277/935—Seal made of a particular material
- Y10S277/939—Containing metal
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
Steel sheet, which may be hypo- or hypereutectoid, is austenitised at the lowest possible temperature and is then passed through rolls or dies whereby it undergoes 1-20% reduction in thickness and is simultaneously cooled to below the nose of the transformation curve. It is then allowed to air cool through the martensitic transformation range after which it may be tempered to any desired hardness. Hypoeutectoid steel may be austenitised at not more than 50 DEG F. above Ac3 and hypereutectoid steel at not more than 50 DEG F. above Ac1, while the sheet may enter the rolls between 50 DEG F. above and 25 DEG F. below Ac1. The product may be used for cutting tools.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US280290A US3250648A (en) | 1963-05-14 | 1963-05-14 | Method of producing hardened steel products |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1063734A true GB1063734A (en) | 1967-03-30 |
Family
ID=23072448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19972/64A Expired GB1063734A (en) | 1963-05-14 | 1964-05-13 | Method of producing hardened steel products |
Country Status (4)
Country | Link |
---|---|
US (1) | US3250648A (en) |
DE (1) | DE1433801A1 (en) |
ES (1) | ES299732A1 (en) |
GB (1) | GB1063734A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3432367A (en) * | 1965-04-05 | 1969-03-11 | Heppenstall Co | Process for the reduction of hot-rolled strip with very fine structural grain size |
US3413166A (en) * | 1965-10-15 | 1968-11-26 | Atomic Energy Commission Usa | Fine grained steel and process for preparation thereof |
US4047979A (en) * | 1976-10-08 | 1977-09-13 | United States Steel Corporation | Heat treatment for improving the toughness of high manganese steels |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU31850A1 (en) * | 1952-03-12 | 1953-12-02 | Philips Nv | PROCESS FOR FINISHING HARDENABLE STEEL |
US2717846A (en) * | 1952-11-26 | 1955-09-13 | Richard F Harvey | Method of surface hardening ferrous metals |
US2881107A (en) * | 1956-10-22 | 1959-04-07 | Lasalle Steel Co | Austempered, cold-finished steels |
US2934463A (en) * | 1959-04-17 | 1960-04-26 | Ford Motor Co | High strength steel |
-
1963
- 1963-05-14 US US280290A patent/US3250648A/en not_active Expired - Lifetime
-
1964
- 1964-05-12 ES ES299732A patent/ES299732A1/en not_active Expired
- 1964-05-13 GB GB19972/64A patent/GB1063734A/en not_active Expired
- 1964-05-14 DE DE19641433801 patent/DE1433801A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US3250648A (en) | 1966-05-10 |
ES299732A1 (en) | 1964-08-16 |
DE1433801A1 (en) | 1969-11-27 |
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