US20030021716A1 - Austenitic stainless steel for cold working suitable for later machining - Google Patents
Austenitic stainless steel for cold working suitable for later machining Download PDFInfo
- Publication number
- US20030021716A1 US20030021716A1 US10/201,968 US20196802A US2003021716A1 US 20030021716 A1 US20030021716 A1 US 20030021716A1 US 20196802 A US20196802 A US 20196802A US 2003021716 A1 US2003021716 A1 US 2003021716A1
- Authority
- US
- United States
- Prior art keywords
- steel
- composition
- austenitic stainless
- cold working
- stainless steel
- 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.)
- Abandoned
Links
- 238000005482 strain hardening Methods 0.000 title claims abstract description 15
- 229910000963 austenitic stainless steel Inorganic materials 0.000 title claims abstract description 9
- 238000003754 machining Methods 0.000 title claims abstract description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000000203 mixture Substances 0.000 claims abstract description 31
- 239000011572 manganese Substances 0.000 claims abstract description 22
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 22
- 239000010949 copper Substances 0.000 claims abstract description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 6
- 239000010703 silicon Substances 0.000 claims abstract description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000011733 molybdenum Substances 0.000 claims abstract description 5
- 239000011574 phosphorus Substances 0.000 claims abstract description 5
- 239000011593 sulfur Substances 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 32
- 239000010959 steel Substances 0.000 claims description 32
- 229910000859 α-Fe Inorganic materials 0.000 claims description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 238000003303 reheating Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229910000734 martensite Inorganic materials 0.000 description 4
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- VCTOKJRTAUILIH-UHFFFAOYSA-N manganese(2+);sulfide Chemical class [S-2].[Mn+2] VCTOKJRTAUILIH-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013074 reference sample Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
-
- 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
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C21D2261/00—Machining or cutting being involved
-
- 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
Definitions
- the invention concerns an austenitic stainless steel for cold working such as cold heading.
- Steels containing a minimum of 11% chrome are called stainless and exhibit good corrosion resistance.
- Austenitic stainless steels also contain nickel, which provides valuable properties for processing, particularly cold working.
- One of the most commonly used austenitic steels has the following composition: C ⁇ 0.08, Si ⁇ 1%, Mn ⁇ 2%, S ⁇ 03%, P ⁇ 0.045%, 18 ⁇ Cr 20%, 8 ⁇ Ni ⁇ 12%.
- This steel is well suited for cold working, but has a limited forming range due to the relatively high hardening coefficient which leads to significant work hardening via the formation of hardening martensite.
- Another austenitic stainless steel is known with the following composition: C ⁇ 0.12%; Si ⁇ 1%; Mn ⁇ 2%; S ⁇ 0.03%; P ⁇ 0.045%; 17 ⁇ Cr ⁇ 19%; 10 ⁇ Ni ⁇ 13%, providing a solution to the hardening issue through a relatively high nickel content, which limits the formation of hardening martensite.
- the presence of nickel in such concentrations also limits the elongation properties of the steel; furthermore, this steel is costly due to the high nickel content.
- French patent 2,229,776 claims a steel with the following composition: 3 ⁇ Ni ⁇ 15%; 6% ⁇ Mn ⁇ 16%; 10% ⁇ Cr ⁇ 25%; Si>2%.
- This steel has valuable abrasion resistance properties.
- U.S. Pat. No. 3,910,788 describes a steel with the following composition: 1% ⁇ Si ⁇ 2.5%; 1.5% ⁇ Mn ⁇ 5%; 1% ⁇ Cu ⁇ 4%; 6% ⁇ Ni ⁇ 9%; 15% ⁇ Cr ⁇ 19%; N ⁇ 0.03%; C+N ⁇ 0.04%.
- This steel is suitable for cold working and die-stamping in the flat product industry and is resilient to delayed failure.
- the nickel content in the composition is relatively high; the steel also contains sensible amounts of silicon to increase the hardening coefficient.
- Japanese patents J63060051 and J63060050 both propose the following steel composition: C ⁇ 0.15%; Si ⁇ 1.5%; 0.5% ⁇ Mn ⁇ 6%; 17% ⁇ Cr ⁇ 23%; 10% ⁇ Ni ⁇ 15%; 0.1% ⁇ Cu ⁇ 3%; 0.02% ⁇ N ⁇ 0.35%; with stabilization using chemical elements Ti+Nb+V.
- the high carbon and nitrogen contents result in high hardness being rapidly attained during cold working, which disqualifies the steel for cold heading applications.
- U.S. Pat. No. 3,753,693 presents a steel composition such as: 17 ⁇ Cr ⁇ 19%; 7% ⁇ Ni ⁇ 10%; 11% ⁇ Mn ⁇ 13%; 0.01% ⁇ N ⁇ 0.07%; C ⁇ 0.06%; Si ⁇ 1%; Mo ⁇ 2%; Cu ⁇ 1.5%.
- This composition is particularly well-suited for cold heading applications where it provides a low hardening coefficient due to the very high nickel and manganese contents.
- JP 55,031,173 presents a grade with the following composition: C ⁇ 0.02%; 0.04% ⁇ N ⁇ 0.1%; 2.5% ⁇ Cu ⁇ 4%; 6% ⁇ Ni ⁇ 8%; 17% ⁇ Cr ⁇ 19% and 3% ⁇ Mn ⁇ 4%; S ⁇ 0.003%.
- the document provides a relatively high nickel content, and a very high nitrogen content. This steel is used to manufacture stainless steel rivets and screws.
- U.S. Pat. No. 4,911,883 concerns a stainless steel for cold working, with the following composition: C ⁇ 0.04%; Si ⁇ 0.6%; 6% ⁇ Ni ⁇ 8%; 2.2% ⁇ Mn ⁇ 3.8%; 17% ⁇ Cr ⁇ 19%; 2.5% ⁇ Cu ⁇ 4%; S ⁇ 0.002%; N ⁇ 0.010%.
- This composition is similar to that previously cited, but has a rather high nickel content.
- WO 00/26428 describes the following composition: 0.025% ⁇ C ⁇ 0.15%; 4% ⁇ Mn ⁇ 12%; Si ⁇ 1%; P ⁇ 0.2%; S ⁇ 0.1%; 15.5% ⁇ Cr ⁇ 17.5%; 1% ⁇ Ni ⁇ 4%; 0.25% ⁇ Mo ⁇ 1.5%; 1.5% ⁇ Cu ⁇ 4%; W ⁇ 1%; Co ⁇ 1%; 0.05% ⁇ N ⁇ 0.3%; with the conditions Cr %+Mo % ⁇ 17.75% and Cr %+3.3Mo %+13N %>20.5%.
- This composition has a low nickel content.
- JP 2001011579A presents the following composition: 0.05% ⁇ C ⁇ 0.5%; 6% ⁇ Mn ⁇ 15%; Si ⁇ 0.5%; S ⁇ 0.03%; 10% ⁇ Cr ⁇ 20%; 0.04% ⁇ Ni ⁇ 0.3%; Mo ⁇ 3%; Cu ⁇ 3%; Al ⁇ 0.1%; 0.05% ⁇ N ⁇ 0.3%, with a relatively high nitrogen+carbon content, as in the composition proposed by the previous document.
- compositions of austenitic stainless steel for cold working containing manganese may be classified in the following manner:
- the goal of the invention is to propose an austenitic stainless steel for cold forming suitable for later machining exhibiting improved mechanical properties over standard austenitic stainless steels; these properties are very valuable for cold working applications, particularly cold heading.
- the goal of the invention is an austenitic stainless steel for cold working suitable for later machining, characterized by the following composition by weight:
- the composition also comprises boron in a concentration below 50-104%;
- the ferrite rate after reheating of the raw solidification structure to 1,240° C. is below 10%, as per the following formula:
- the invention concerns an austenitic stainless steel for cold working suitable for later machining, characterized by the following composition by weight:
- the carbon content is controlled to be below 0.030% in order to limit the formation and hardening of hardening martensite.
- the combined carbon and nitrogen content must be controlled to be below 0.07%.
- the nitrogen content is controlled to a level between 0.02% ⁇ N ⁇ 0.060%, preferably 0.02% ⁇ N ⁇ 0.04%, in order to stabilize the austenite and guarantee a hot ferrite content ⁇ 15%.
- the nickel content has been lowered to between 4.55% and 7%, preferably to around 5%.
- the lower nickel content is compensated by a manganese content between 5% and 9%, preferably around 8%.
- the presence of chrome guarantees good corrosion resistance, with the content chosen between 15% and 18%.
- Copper is present in the composition to stabilize the austenite. As described in prior art, it is limited to below 4%. A content above 2% is preferred to improve stabilization of the austenite.
- Sulfur is limited to a content below 0.01% and preferably below 0.002% in order to limit the formation of manganese sulfides which are detrimental to hot workability and corrosion resistance.
- silicon content should be below 1%, preferably below 0.3%.
- the composition also contains molybdenum in a concentration below 0.8% and phosphorus in a concentration below 0.030%.
- Boron may be added in a concentration below 50 ⁇ 10 ⁇ 4 % to facilitate cold and hot working.
- the composition of a steel 1 as per the invention was compared to that of a reference sample, a standard austenitic steel with the composition presented in table 1 below: TABLE 1 % C % Si % Mn % Ni % Cr % Mo % Cu % N % S Md30 % ⁇ Steel 1 0.023 0.36 8.1 5.1 15.0 0.30 3.3 0.035 0.001 ⁇ 71.6 Ref. steel 0.029 0.33 1.8 8.1 17.2 0.29 3.2 0.027 0.002 ⁇ 59.3
- the steel as per the invention exhibits improved cold workability compared to the standard reference steel.
- Cruciform impact testing shows that:
- the reference steel exhibits incipient ductile failure at the angles of the cross.
- the steel as per the invention exhibits good corrosion resistance, comparable to that of a standard 304 steel.
- the steel as per the invention is non-magnetic in annealed temper, and lightly magnetic in hard temper; has a weldability equivalent to that of a standard 304 steel; and a machinability close to that of a standard 304 steel.
- the steel as per the invention is commercially attractive seeing as it employs alloy elements which are less costly than nickel, and facilitates working at each stage of processing, particularly due to a hot structure and mechanical properties which are compatible with existing processing techniques for standard austenitic stainless steels.
- the steel as per the invention is well-suited for parts involving an initial cold heading operation followed by a finishing machining operation.
- Its field of application may include fitting products such as fasteners, bolting, nuts, threaded rods, and any particular parts manufactured by cold heading, e.g. fixtures, automobile parts such as mountings, airbags, probe support and body elements, or mass-produced connection parts such as electrical connection equipment.
- fitting products such as fasteners, bolting, nuts, threaded rods, and any particular parts manufactured by cold heading, e.g. fixtures, automobile parts such as mountings, airbags, probe support and body elements, or mass-produced connection parts such as electrical connection equipment.
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 Sheet Steel (AREA)
- Heat Treatment Of Articles (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/686,589 US20100119403A1 (en) | 2001-07-27 | 2010-01-13 | Austenitic Stainless Steel for Cold Working Suitable For Later Machining |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0110070A FR2827876B1 (fr) | 2001-07-27 | 2001-07-27 | Acier inoxydable austenitique pour deformation a froid pouvant etre suivi d'un usinage |
FR0110070 | 2001-07-27 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/686,589 Continuation-In-Part US20100119403A1 (en) | 2001-07-27 | 2010-01-13 | Austenitic Stainless Steel for Cold Working Suitable For Later Machining |
Publications (1)
Publication Number | Publication Date |
---|---|
US20030021716A1 true US20030021716A1 (en) | 2003-01-30 |
Family
ID=8865996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/201,968 Abandoned US20030021716A1 (en) | 2001-07-27 | 2002-07-25 | Austenitic stainless steel for cold working suitable for later machining |
Country Status (8)
Country | Link |
---|---|
US (1) | US20030021716A1 (de) |
EP (1) | EP1281785B1 (de) |
KR (1) | KR20030011628A (de) |
CA (1) | CA2395628C (de) |
ES (1) | ES2402763T3 (de) |
FR (1) | FR2827876B1 (de) |
MX (1) | MXPA02007294A (de) |
TW (1) | TW554053B (de) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060287480A1 (en) * | 2005-06-17 | 2006-12-21 | Crawford Emmett D | Outdoor shelters comprising polyester compositions formed from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol |
CN100464000C (zh) * | 2007-06-12 | 2009-02-25 | 江阴康瑞不锈钢制品有限公司 | 奥氏体冷镦不锈钢及其钢丝的制造方法 |
US20090162238A1 (en) * | 2007-12-20 | 2009-06-25 | Ati Properties, Inc. | Corrosion resistant lean austenitic stainless steel |
US8540933B2 (en) | 2009-01-30 | 2013-09-24 | Sandvik Intellectual Property Ab | Stainless austenitic low Ni steel alloy |
CN103447348A (zh) * | 2013-07-25 | 2013-12-18 | 张家港市胜达钢绳有限公司 | 一种不锈钢线材的制造方法 |
US8858872B2 (en) | 2007-11-29 | 2014-10-14 | Ati Properties, Inc. | Lean austenitic stainless steel |
US9121089B2 (en) | 2007-12-20 | 2015-09-01 | Ati Properties, Inc. | Lean austenitic stainless steel |
US9133538B2 (en) | 2007-12-20 | 2015-09-15 | Ati Properties, Inc. | Lean austenitic stainless steel containing stabilizing elements |
CN105308516A (zh) * | 2013-06-12 | 2016-02-03 | 尼瓦洛克斯-法尔股份有限公司 | 用于钟表机芯的构件 |
EP1944385A4 (de) * | 2005-11-01 | 2016-04-13 | Nippon Steel & Sumikin Sst | Manganreicher austenitischer nichtrostender stahl für hochdruck-wasserstoffgas |
EP2902521A4 (de) * | 2012-09-27 | 2016-04-27 | Nippon Steel & Sumikin Sst | Sehr weiches nichtmagnetisches edelstahl-drahtmaterial mit ausgezeichneter kaltformbarkeit und korrosionsbeständigkeit, verfahren zur herstellung davon, stahldraht, stahldrahtspule und verfahren zur herstellung davon |
JP2016069680A (ja) * | 2014-09-30 | 2016-05-09 | 国立大学法人 名古屋工業大学 | ステンレス鋼の制振処理 |
EP3266898A4 (de) * | 2015-03-06 | 2018-12-26 | Nippon Steel & Sumikin Stainless Steel Corporation | Hochfester austenitischer edelstahl mit hervorragenden wasserstoffversprödungsbeständigkeitseigenschaften und verfahren zur herstellung davon |
US11149324B2 (en) | 2015-03-26 | 2021-10-19 | Nippon Steel Stainless Steel Corporation | High strength austenitic stainless steel having excellent resistance to hydrogen embrittlement, method for manufacturing the same, and hydrogen equipment used for high-pressure hydrogen gas and liquid hydrogen environment |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109136757B (zh) * | 2018-09-05 | 2020-10-27 | 包头钢铁(集团)有限责任公司 | 中碳冷镦钢线材和中碳冷镦钢线材的生产方法 |
CN113265585B (zh) * | 2021-05-14 | 2023-02-24 | 山西太钢不锈钢股份有限公司 | 一种汽车安全气囊用不锈钢及其生产方法与应用 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3615365A (en) * | 1968-04-18 | 1971-10-26 | Allegheny Ludlum Steel | Austenitic stainless steel |
US4568387A (en) * | 1984-07-03 | 1986-02-04 | Allegheny Ludlum Steel Corporation | Austenitic stainless steel for low temperature service |
US4814140A (en) * | 1987-06-16 | 1989-03-21 | Carpenter Technology Corporation | Galling resistant austenitic stainless steel alloy |
US5286310A (en) * | 1992-10-13 | 1994-02-15 | Allegheny Ludlum Corporation | Low nickel, copper containing chromium-nickel-manganese-copper-nitrogen austenitic stainless steel |
US5571343A (en) * | 1993-08-25 | 1996-11-05 | Pohang Iron & Steel Co., Ltd. | Austenitic stainless steel having superior press-formability, hot workability and high temperature oxidation resistance, and manufacturing process therefor |
US5788922A (en) * | 1996-05-02 | 1998-08-04 | Crs Holdings, Inc. | Free-machining austenitic stainless steel |
US6056917A (en) * | 1997-07-29 | 2000-05-02 | Usinor | Austenitic stainless steel having a very low nickel content |
US6123784A (en) * | 1998-03-18 | 2000-09-26 | Ugine-Savoie Imphy | Austenitic stainless steel especially for making wire |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04272158A (ja) * | 1991-02-28 | 1992-09-28 | Nippon Stainless Steel Co Ltd | 加工硬化性の少ない非磁性ステンレス鋼 |
JPH08283915A (ja) * | 1995-04-12 | 1996-10-29 | Nkk Corp | 加工性に優れたオーステナイトステンレス鋼 |
JP4207137B2 (ja) * | 1998-02-16 | 2009-01-14 | 日立金属株式会社 | 高硬度高耐食ステンレス鋼 |
DE69906194T2 (de) * | 1998-07-30 | 2004-01-29 | Aster Puteaux | Verbunddracht mit einem Kern aus Kohlenstoffstahl und einer Aussenschicht aus einem rostfreiem Stahl |
-
2001
- 2001-07-27 FR FR0110070A patent/FR2827876B1/fr not_active Expired - Fee Related
-
2002
- 2002-07-11 TW TW091115433A patent/TW554053B/zh not_active IP Right Cessation
- 2002-07-24 KR KR1020020043648A patent/KR20030011628A/ko not_active Application Discontinuation
- 2002-07-24 CA CA2395628A patent/CA2395628C/fr not_active Expired - Fee Related
- 2002-07-25 ES ES02291881T patent/ES2402763T3/es not_active Expired - Lifetime
- 2002-07-25 US US10/201,968 patent/US20030021716A1/en not_active Abandoned
- 2002-07-25 EP EP02291881A patent/EP1281785B1/de not_active Expired - Lifetime
- 2002-07-26 MX MXPA02007294A patent/MXPA02007294A/es active IP Right Grant
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3615365A (en) * | 1968-04-18 | 1971-10-26 | Allegheny Ludlum Steel | Austenitic stainless steel |
US4568387A (en) * | 1984-07-03 | 1986-02-04 | Allegheny Ludlum Steel Corporation | Austenitic stainless steel for low temperature service |
US4814140A (en) * | 1987-06-16 | 1989-03-21 | Carpenter Technology Corporation | Galling resistant austenitic stainless steel alloy |
US5286310A (en) * | 1992-10-13 | 1994-02-15 | Allegheny Ludlum Corporation | Low nickel, copper containing chromium-nickel-manganese-copper-nitrogen austenitic stainless steel |
US5571343A (en) * | 1993-08-25 | 1996-11-05 | Pohang Iron & Steel Co., Ltd. | Austenitic stainless steel having superior press-formability, hot workability and high temperature oxidation resistance, and manufacturing process therefor |
US5788922A (en) * | 1996-05-02 | 1998-08-04 | Crs Holdings, Inc. | Free-machining austenitic stainless steel |
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Also Published As
Publication number | Publication date |
---|---|
CA2395628C (fr) | 2010-11-23 |
MXPA02007294A (es) | 2003-09-04 |
FR2827876B1 (fr) | 2004-06-18 |
EP1281785A2 (de) | 2003-02-05 |
FR2827876A1 (fr) | 2003-01-31 |
CA2395628A1 (fr) | 2003-01-27 |
EP1281785B1 (de) | 2013-01-09 |
KR20030011628A (ko) | 2003-02-11 |
ES2402763T3 (es) | 2013-05-08 |
TW554053B (en) | 2003-09-21 |
EP1281785A3 (de) | 2003-05-14 |
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