GB1435313A - Method for producing cold-workable hypoeutectoid steel - Google Patents
Method for producing cold-workable hypoeutectoid steelInfo
- Publication number
- GB1435313A GB1435313A GB1684973A GB1684973A GB1435313A GB 1435313 A GB1435313 A GB 1435313A GB 1684973 A GB1684973 A GB 1684973A GB 1684973 A GB1684973 A GB 1684973A GB 1435313 A GB1435313 A GB 1435313A
- Authority
- GB
- United Kingdom
- Prior art keywords
- workable
- april
- working
- reduction
- producing cold
- 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
-
- 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
- C21D1/26—Methods of annealing
- C21D1/32—Soft annealing, e.g. spheroidising
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)
Abstract
1435313 Working at specified temperatures BETHLEHEM STEEL CORP 9 April 1973 [10 April 1972] 16849/73 Heading B3V [Also in Division C7] A hypoeutectoid steel containing 0À3-0À8% C is hot-rolled in the austenitic region, cooled to black, reheated, and worked in the temperature range of A 1 to (A 1 - 150 )‹ F., whereby there is produced a structure of dispersed spheroidal carbides in a ferrite matrix. The working should produce at least 60% reduction in crosssectional area. In a particular example, steel containing 0À39% C, 0À75% Mn and 0À18% Si was cast into 34 inch diameter moulds and bloomed to 4 inch square. After reduction to 2# Î 1¢ inches finishing at 1900‹ F. it was allowed to cool to 1200‹ F. and reduced by 60% to 1“ inch diameter, followed by heat treatment at 1300‹ F. for 5 hours.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24247372A | 1972-04-10 | 1972-04-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1435313A true GB1435313A (en) | 1976-05-12 |
Family
ID=22914906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1684973A Expired GB1435313A (en) | 1972-04-10 | 1973-04-09 | Method for producing cold-workable hypoeutectoid steel |
Country Status (7)
Country | Link |
---|---|
US (1) | US3762964A (en) |
JP (1) | JPS499421A (en) |
CA (1) | CA992440A (en) |
DE (1) | DE2317628A1 (en) |
FR (1) | FR2179884B1 (en) |
GB (1) | GB1435313A (en) |
IT (1) | IT980137B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4533390A (en) * | 1983-09-30 | 1985-08-06 | Board Of Trustees Of The Leland Stanford Junior University | Ultra high carbon steel alloy and processing thereof |
US4604145A (en) * | 1984-01-13 | 1986-08-05 | Sumitomo Metal Industries, Ltd. | Process for production of steel bar or steel wire having an improved spheroidal structure of cementite |
JP3215891B2 (en) * | 1991-06-14 | 2001-10-09 | 新日本製鐵株式会社 | Manufacturing method of steel rod for cold working |
SE9800860L (en) * | 1998-03-16 | 1999-05-25 | Ovako Steel Ab | Ways for soft annealing of high carbon steel |
-
1972
- 1972-04-10 US US00242473A patent/US3762964A/en not_active Expired - Lifetime
-
1973
- 1973-04-07 DE DE2317628A patent/DE2317628A1/en active Pending
- 1973-04-09 GB GB1684973A patent/GB1435313A/en not_active Expired
- 1973-04-09 CA CA168,285A patent/CA992440A/en not_active Expired
- 1973-04-10 IT IT49330/73A patent/IT980137B/en active
- 1973-04-10 JP JP48040753A patent/JPS499421A/ja active Pending
- 1973-04-10 FR FR7312776A patent/FR2179884B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IT980137B (en) | 1974-09-30 |
CA992440A (en) | 1976-07-06 |
FR2179884A1 (en) | 1973-11-23 |
DE2317628A1 (en) | 1973-10-18 |
JPS499421A (en) | 1974-01-28 |
FR2179884B1 (en) | 1977-08-19 |
US3762964A (en) | 1973-10-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |