US3804615A - Method of forming stainless steel of improved drawability - Google Patents
Method of forming stainless steel of improved drawability Download PDFInfo
- Publication number
- US3804615A US3804615A US00196180A US19618071A US3804615A US 3804615 A US3804615 A US 3804615A US 00196180 A US00196180 A US 00196180A US 19618071 A US19618071 A US 19618071A US 3804615 A US3804615 A US 3804615A
- Authority
- US
- United States
- Prior art keywords
- stainless steel
- steel
- drawability
- work hardening
- improved drawability
- 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
Definitions
- the present invention relates to an austenitic stainlesssteel. alloy system that has physical properties including work hardening characteristics such that it exhibits improved drawability and is suitable for temper rolling.
- cent nickel and adjusting the composition of the melt according to work hardening rate equation where W is a value in the range of 45-85:
- the balanced composition of the invention provides 35 ea 0 Sksl ks] (percent) w consistently good drawability MT-20 69.5 40.0 it 134.0 56.6 77.1 I d .th th th d MT22 68.0 39.3 123.6 63.0 63.7- n accor ance n e mven 1011, ere 1S provi e MT 24 675 400 123.0 623 628 a method of making stainless steel which involves pre- MS-65 68.0 37.3 131.0 61.1 t 74.4 paring a melt of steel having not more than 6.75 perln manufacturing steels in accordance with the invention, it is recognized that although it may be necessary to make specific additions of certain elements present in the alloy, some of the
- a method of making stainless steel of improved drawability and suitable for temper rolling which com- 3 4 prises preparing a steel melt consisting essentially of up W 2045.13 1045.82 (%C) 69.29 (%Mn) 64.49 to 0.15% carbon, up to 3% manganese, 16 to 18% chro- (%Cr) mium, to 6.75% nickel, up to 0.1% nitrogen, up to 1% silicon, up to 0.5% each of molybdenum, copper and 96.70 (%Ni) 1293.63 (%N cobalt, and the balance iron and steel making residuals 5 and adjusting the composition thereof to provide a bal- 2.
- W is a anced steel composition in accordance with the following work hardening rate equation where W is a value in the range of 45 85:
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Description
Claims (1)
- 2. A method according to claim 1 wherein W is a value in the range of 50 - 80.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00196180A US3804615A (en) | 1969-08-29 | 1971-11-05 | Method of forming stainless steel of improved drawability |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US85427169A | 1969-08-29 | 1969-08-29 | |
US00196180A US3804615A (en) | 1969-08-29 | 1971-11-05 | Method of forming stainless steel of improved drawability |
Publications (1)
Publication Number | Publication Date |
---|---|
US3804615A true US3804615A (en) | 1974-04-16 |
Family
ID=26891711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00196180A Expired - Lifetime US3804615A (en) | 1969-08-29 | 1971-11-05 | Method of forming stainless steel of improved drawability |
Country Status (1)
Country | Link |
---|---|
US (1) | US3804615A (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2903386A (en) * | 1955-10-27 | 1959-09-08 | Armco Steel Corp | Heat-hardened stainless steel and method for cold treating same |
US3155497A (en) * | 1957-02-25 | 1964-11-03 | A J Boynton & Co | Method of adding solid material to molten metal |
US3174847A (en) * | 1960-02-08 | 1965-03-23 | Kaiser Steel Corp | Method of melting and refining |
US3253966A (en) * | 1962-07-09 | 1966-05-31 | Allegheny Ludlum Steel | Stainless steel |
US3282684A (en) * | 1963-07-31 | 1966-11-01 | Armco Steel Corp | Stainless steel and articles |
US3366470A (en) * | 1965-10-23 | 1968-01-30 | Budd Co | Metallurgical process and product |
-
1971
- 1971-11-05 US US00196180A patent/US3804615A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2903386A (en) * | 1955-10-27 | 1959-09-08 | Armco Steel Corp | Heat-hardened stainless steel and method for cold treating same |
US3155497A (en) * | 1957-02-25 | 1964-11-03 | A J Boynton & Co | Method of adding solid material to molten metal |
US3174847A (en) * | 1960-02-08 | 1965-03-23 | Kaiser Steel Corp | Method of melting and refining |
US3253966A (en) * | 1962-07-09 | 1966-05-31 | Allegheny Ludlum Steel | Stainless steel |
US3282684A (en) * | 1963-07-31 | 1966-11-01 | Armco Steel Corp | Stainless steel and articles |
US3366470A (en) * | 1965-10-23 | 1968-01-30 | Budd Co | Metallurgical process and product |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ALLEGHENY LUDLUM CORPORATION Free format text: CHANGE OF NAME;ASSIGNOR:ALLEGHENY LUDLUM STEEL CORPORATION;REEL/FRAME:004779/0642 Effective date: 19860805 |
|
AS | Assignment |
Owner name: PITTSBURGH NATIONAL BANK Free format text: SECURITY INTEREST;ASSIGNOR:ALLEGHENY LUDLUM CORPORATION;REEL/FRAME:004855/0400 Effective date: 19861226 |
|
AS | Assignment |
Owner name: PITTSBURGH NATIONAL BANK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. RECORDED ON REEL 4855 FRAME 0400;ASSIGNOR:PITTSBURGH NATIONAL BANK;REEL/FRAME:005018/0050 Effective date: 19881129 |