GB782778A - Improvements in or relating to alloy steel - Google Patents
Improvements in or relating to alloy steelInfo
- Publication number
- GB782778A GB782778A GB2476655A GB2476655A GB782778A GB 782778 A GB782778 A GB 782778A GB 2476655 A GB2476655 A GB 2476655A GB 2476655 A GB2476655 A GB 2476655A GB 782778 A GB782778 A GB 782778A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hour
- hours
- held
- alloy
- charged
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
A heat-treatable steel has a composition within the following range in per cent by weight: C 0.24-0.35; Mn 0.95-1.4; Si 0.4-0.6; Mo 0.2-0.35; V 0.029-0.07; B 0.0025-0.003; S up to 0.05; P up to 0.05; Fe and impurities the balance. The steel may contain residual Cr which together with Mn is within the range 0.95-1.4, the minimum Mn being 0.95. An example is given containing Ni 0.09. In heat treating the alloy it may be charged to a cold furnace, brought up to 1800 DEG F. in 3 1/2 -4 hours, held at that temperature for 3 hours, cooled in the furnace to 1600 DEG F. over about 1/2 hour, held for 1 hour then quenched in agitated water. When charged to a hot oven the alloy is heated to 1500 DEG F. and held for 1 hour before continuing treatment as given above. Heavy sectioned castings may be heated at 1500 DEG F. for 1 hour, then to 1750 DEG F. for about 5 hours, then cooled in air and tempered at 1050 DEG F. The alloys may be used in gears, pinions, sprockets, digging machinery and other equipment where strength, toughness and wear resistance are required.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2476655A GB782778A (en) | 1955-08-29 | 1955-08-29 | Improvements in or relating to alloy steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2476655A GB782778A (en) | 1955-08-29 | 1955-08-29 | Improvements in or relating to alloy steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB782778A true GB782778A (en) | 1957-09-11 |
Family
ID=10216913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2476655A Expired GB782778A (en) | 1955-08-29 | 1955-08-29 | Improvements in or relating to alloy steel |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB782778A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3181945A (en) * | 1961-10-05 | 1965-05-04 | Battelle Development Corp | High strength steel |
| FR2219238A1 (en) * | 1973-02-22 | 1974-09-20 | Babcock & Wilcox Co | |
| EP0728846A2 (en) * | 1995-02-21 | 1996-08-28 | Illinois Tool Works Inc. | Steel strapping for high temperature use |
-
1955
- 1955-08-29 GB GB2476655A patent/GB782778A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3181945A (en) * | 1961-10-05 | 1965-05-04 | Battelle Development Corp | High strength steel |
| FR2219238A1 (en) * | 1973-02-22 | 1974-09-20 | Babcock & Wilcox Co | |
| EP0728846A2 (en) * | 1995-02-21 | 1996-08-28 | Illinois Tool Works Inc. | Steel strapping for high temperature use |
| EP0728846A3 (en) * | 1995-02-21 | 1997-06-11 | Illinois Tool Works | Steel strapping for high temperature use |
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