GB1092538A - Low-temperature tough steel - Google Patents
Low-temperature tough steelInfo
- Publication number
- GB1092538A GB1092538A GB46582/64A GB4658264A GB1092538A GB 1092538 A GB1092538 A GB 1092538A GB 46582/64 A GB46582/64 A GB 46582/64A GB 4658264 A GB4658264 A GB 4658264A GB 1092538 A GB1092538 A GB 1092538A
- Authority
- GB
- United Kingdom
- Prior art keywords
- steel
- austenitized
- quenched
- nitride
- treated
- 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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
A steel having good low temperature toughness contains in percentage by weight .C.0.01-0.15 .Si.0.05-0.4 .Ni.4.5 -7.5 .Mn.0.5 -3.5 .N.0.001-0.05 .Al.(acid soluble) not more than 0.05 .Mo.0.05-0.5 optionally present .Fe.balance and has a structure of fine dispersed austenite in a ferrite matrix. The aluminium present as nitride may be replaced by an equivalent amount of one or more of Zr, Ti, Be, Nb, V, Hf, Ta or B. The steel may be austenitized at 700 DEG -900 DEG C., followed by quenching and tempering at 525 DEG -650 DEG C., but when more than 0.005% of aluminium nitride is formed the first step may be carried out at a higher temperature sufficient to dissolve the nitride without producing excessive grain growth. Alternatively the steel may be treated at an even higher temperature e.g. 1350 DEG C., quenched, and then austenitized; in yet a further variation the steel may be treated at 1350 DEG C., quenched, normalized from 700 DEG C., and then austenitized, quenched and tempered. The fine dispersed austenite produced in the tempering step may be partially converted to martensite upon the subsequent quenching.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6198863 | 1963-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1092538A true GB1092538A (en) | 1967-11-29 |
Family
ID=13187059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB46582/64A Expired GB1092538A (en) | 1963-11-18 | 1964-11-16 | Low-temperature tough steel |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3444011A (en) |
| GB (1) | GB1092538A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3645721A (en) * | 1968-01-25 | 1972-02-29 | Republic Steel Corp | Heat-treatable, high-strength, high-toughness, low-carbon, ni-mo alloy steel |
| US3619302A (en) * | 1968-11-18 | 1971-11-09 | Yawata Iron & Steel Co | Method of heat-treating low temperature tough steel |
| USRE28645E (en) * | 1968-11-18 | 1975-12-09 | Method of heat-treating low temperature tough steel | |
| GB1280268A (en) * | 1969-06-21 | 1972-07-05 | Nippon Kokan Kk | Steel for low-temperature services |
| US4353755A (en) * | 1980-10-29 | 1982-10-12 | General Electric Company | Method of making high strength duplex stainless steels |
| FR2673197B1 (en) * | 1991-01-31 | 1994-02-04 | Creusot Loire Industrie | METHOD FOR MANUFACTURING BLOCKS OR MASSIVE STEEL PARTS AND PARTS OBTAINED. |
| KR100984413B1 (en) * | 2005-09-21 | 2010-09-29 | 수미도모 메탈 인더스트리즈, 리미티드 | Low temperature steel and its manufacturing method |
| JP6018453B2 (en) * | 2012-03-09 | 2016-11-02 | 株式会社神戸製鋼所 | High strength thick steel plate with excellent cryogenic toughness |
| JP6018454B2 (en) * | 2012-04-13 | 2016-11-02 | 株式会社神戸製鋼所 | High strength thick steel plate with excellent cryogenic toughness |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2206370A (en) * | 1938-08-13 | 1940-07-02 | Merco Nordstrom Valve Co | Low temperature alloy and valve or the like |
| US2516125A (en) * | 1949-04-11 | 1950-07-25 | Irvin R Kramer | Alloy steel |
| US2992148A (en) * | 1959-04-23 | 1961-07-11 | Int Nickel Co | Alloy steels |
| GB988705A (en) * | 1961-03-11 | 1965-04-07 | Ishikawajima Harima Heavy Ind | Steel for high temperature cementation |
| BE614714A (en) * | 1961-05-16 | 1962-07-02 | Ishikawajima Harima Heavy Ind | Low nickel ductile steel |
-
1964
- 1964-11-16 GB GB46582/64A patent/GB1092538A/en not_active Expired
- 1964-11-18 US US412111A patent/US3444011A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3444011A (en) | 1969-05-13 |
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