JPS61272317A - Manufacture of high strength austenitic stainless steel material at normal and high temperature range superior in corrosion resistance - Google Patents
Manufacture of high strength austenitic stainless steel material at normal and high temperature range superior in corrosion resistanceInfo
- Publication number
- JPS61272317A JPS61272317A JP11419485A JP11419485A JPS61272317A JP S61272317 A JPS61272317 A JP S61272317A JP 11419485 A JP11419485 A JP 11419485A JP 11419485 A JP11419485 A JP 11419485A JP S61272317 A JPS61272317 A JP S61272317A
- Authority
- JP
- Japan
- Prior art keywords
- stainless steel
- austenitic stainless
- austenite
- corrosion resistance
- temperature
- 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.)
- Pending
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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
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)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は耐食性に優れた常温および高温域での高強度オ
ーステナイト・ステンレス鋼材の製造方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for producing high-strength austenitic stainless steel material with excellent corrosion resistance at normal and high temperatures.
オーステナイトステンレス鋼材（以下、鋼材として鋼板
を例にとって説明する。）Ｋ熱処理、即 ・ち、溶
体化処理または固溶化処理を施す目的は、炭素鋼や低合
金鋼の場合と異なＦ）、Ｃｒ炭化物をマトリックスに固
溶させて耐食性を向上させることにあるので、一般に鋼
板＝に１０００℃以上の高温度に加熱することが行なわ
れている。このためにオーステナイト粒が粗大化し、室
温での強度および高温強度は低く、高強度を要求される
一部の構造物用鋼板として不適当であった。Austenitic stainless steel materials (Hereinafter, steel sheets will be explained as examples of steel materials). The purpose of this is to improve corrosion resistance by solid-dissolving into the matrix, so steel sheets are generally heated to a high temperature of 1000° C. or higher. As a result, the austenite grains become coarse, and the strength at room temperature and high temperature strength are low, making the steel sheet unsuitable for use in some structural steel sheets that require high strength.
上述した問題点の解決法の一つに、オーステナイト・ス
テンレス鋼中の窒素含有量を高める方法かわる。しかし
、この方法を採っても降伏強度は５〜６ｖ−程度上昇す
るにすぎない。One solution to the above-mentioned problems is to increase the nitrogen content in the austenitic stainless steel. However, even if this method is adopted, the yield strength only increases by about 5 to 6 v-.
一方、オーステナイトステンレス鋼中の窒素ハ耐食性に
さまざまな影響を及ばし、しかも、その影響は必ずしも
良いものとは限らない。たとえば、窒素含有量の増加と
共に耐食性は増す反面、耐応力腐食割れ性は劣化する。On the other hand, nitrogen in austenitic stainless steel has various effects on corrosion resistance, and these effects are not necessarily positive. For example, as the nitrogen content increases, corrosion resistance increases, but stress corrosion cracking resistance deteriorates.
又、一定量の窒素は粒界鋭敏化を抑制するものの、それ
以上の窒素は鋭敏化を促進する。このよりに、一般構造
物材に９求される総合的な耐食性を考慮すると、窒素含
有量を高める方法は必ずしも好ましくない。Furthermore, although a certain amount of nitrogen suppresses grain boundary sensitization, more nitrogen promotes sensitization. Therefore, when considering the overall corrosion resistance required for general structural materials, the method of increasing the nitrogen content is not necessarily preferable.
別の方法として、オーステナイト・ステンレス鋼片に制
御圧延を施す方法が採用されている。即ち、オーステナ
イト・ステンレス鋼片を熱間圧延する際に、オーステナ
イトの未再結晶域で累積圧死を施すことによって降伏強
度を上昇させる方法がある。しかし、この方法には次の
ような問題がある。即ち熱間圧延前にオーステナイト・
ステンレス鋼片をＣｒ炭化物が十分に固溶する温度に加
熱しても、熱間圧延によって鋼に生じる歪みにょってＣ
ｒ炭化物などの析出が生じ易くなシ（歪誘起析出と言う
）鋼板の耐食性が劣化する。この耐食性の劣化を防止す
るためには、特開昭５５−１０７７２９号に示されるご
とく、熱間圧延後に急冷丁れば良いものの、この公報で
は強度については、何ら開示されてなく不明である。Another method has been to subject an austenitic stainless steel piece to controlled rolling. That is, when hot rolling an austenitic stainless steel piece, there is a method of increasing the yield strength by subjecting the unrecrystallized austenite region to cumulative compression death. However, this method has the following problems. In other words, austenite and
Even if a piece of stainless steel is heated to a temperature at which Cr carbide becomes a solid solution, the distortion caused in the steel by hot rolling will cause Cr to dissolve.
Precipitation of carbides and the like tends to occur (referred to as strain-induced precipitation), which deteriorates the corrosion resistance of the steel sheet. In order to prevent this deterioration of corrosion resistance, it is sufficient to rapidly cool the steel after hot rolling, as shown in JP-A-55-107729, but this publication does not disclose anything about the strength and is unclear.
又、溶体化処理を施すにはＣｒ炭化物を固溶さぜた後、
冷却途中でＣｒ炭化物が再度析出しないような冷却速度
で冷却する必要があるが、制御圧延においては圧延後の
冷却は空冷となるためにＣｒ炭化析出防止の点から見る
と、前記方法を適用し得る材料は制限される。即ち、組
成としてはＣ量が０．０１％以下のものに制限され、板
厚としては６−以下の薄物に限定される。In addition, in order to perform solution treatment, after dissolving Cr carbide,
It is necessary to cool at a cooling rate that prevents Cr carbide from precipitating again during cooling, but in controlled rolling, cooling after rolling is air cooling, so from the point of view of preventing Cr carbide precipitation, the above method is not suitable. The amount of material that can be obtained is limited. That is, the composition is limited to a C content of 0.01% or less, and the plate thickness is limited to a thin material of 6 mm or less.
一般にオーステナイト・ステンレス鋼は変形抵抗が大き
いことから１バスで大きな圧下金とることは困難である
。従って、薄物の場合には特にバス回数が増加し、Ｃｒ
炭化物などの歪誘起析出を防止するための８００℃以上
の高温仕上げは困難である。Generally, austenitic stainless steel has high deformation resistance, so it is difficult to make a large reduction in one bath. Therefore, the number of baths increases especially in the case of thin materials, and Cr
It is difficult to finish at a high temperature of 800° C. or higher to prevent strain-induced precipitation of carbides and the like.
また、オーステナイト・ステンレス鋼は炭素鋼や低合金
鋼と比較すると熱伝導が１７２程度小さいので制御圧延
後の空冷時における冷却速度は益々遅くなってＣｒ炭化
物などは析出し易くなる。Furthermore, since austenitic stainless steel has a thermal conductivity that is about 172 lower than that of carbon steel or low alloy steel, the cooling rate during air cooling after controlled rolling becomes increasingly slower, making it easier for Cr carbides to precipitate.
以上の説明から明らかなように、降伏強度が高く、シか
も耐食性に優れたオーステナイト・ステンレス鋼板の製
造方法は未だ確立されていない。As is clear from the above description, a method for manufacturing an austenitic stainless steel sheet with high yield strength and excellent corrosion resistance has not yet been established.
なお、降伏強度を高めることは別として、溶体化処理を
施すＫは、オーステナイト・ステンレス鋼片を前述のよ
うな高温度に加熱するための莫大な熱エネルギーを要す
るばかシか、このような高温度に耐えるハースロール等
を備えた加熱炉を設置する必要があり、溶体化処理を独
立した工程によって実施することは合理的な方法ではな
い。In addition, apart from increasing the yield strength, solution treatment of K requires a huge amount of thermal energy to heat the austenitic stainless steel piece to the high temperature mentioned above. It is necessary to install a heating furnace equipped with hearth rolls etc. that can withstand the temperature, and it is not a rational method to carry out the solution treatment as an independent process.
この発明は叙上の従来技術における問題点を解決するに
ある。即ち本発明は常温および高温域においても降伏強
度が高く、シかも耐食性に優れたオーステナイト・ステ
ンレス鋼板を安価に製造することができる方法を提供す
ることを目的とするものである。The purpose of this invention is to solve the problems in the prior art described above. That is, an object of the present invention is to provide a method for manufacturing at low cost an austenitic stainless steel sheet that has high yield strength even at room temperature and high temperature range, and has excellent corrosion resistance.
本発明に使用されるオーステナイト・ステンレス鋼は通
常、溶体化処理を必要とする抵てのオーステナイト・ス
テンレス鋼であシ、具体的にはＣ：０．１％以下、Ｍｎ
ｍ ５％以下、ｓｔ：２％以下、Ｎｌ：６−６５％、
Ｃｒ：１０−３０％、Ａｔ：１−以下、残部鉄および不
可避不純物（以上重量％）を基本元素とし、更に必要に
応じて、これらの基本元素にＴｉ：２％以下、Ｎｂ ：
２ ％以下、Ｃｕ：ｔ％以下、Ｍｅ ： １０％以下
の１種または２種以上の付加的元素を含有するものであ
る。The austenitic stainless steel used in the present invention is generally any austenitic stainless steel that requires solution treatment, specifically C: 0.1% or less, Mn
m 5% or less, st: 2% or less, Nl: 6-65%,
The basic elements are Cr: 10-30%, At: 1- or less, the balance iron and unavoidable impurities (more than 1% by weight), and if necessary, in addition to these basic elements, Ti: 2% or less, Nb:
It contains one or more additional elements of 2% or less, Cu: t% or less, and Me: 10% or less.
この発明の第１は、上記の如き組成のオーステナイト・
ステンレス鋼片を１０００℃以上の温度に加熱し、この
後、加熱した前記鋼片をオーステナイトの再結晶域で熱
間圧延を施し、ついで、このようにして得られた鋼板を
２″Ｃ７ａ ＠ｅ以上の平均冷却速度で少なくとも５５
０Ｃの温度まで加速冷却することを特徴とする、耐食性
に優れた常温および高温域での高強度オーステナイト・
ステンレス鋼材の製造方法である。The first aspect of this invention is austenite having the above composition.
A stainless steel piece is heated to a temperature of 1000°C or higher, and then the heated steel piece is hot-rolled in an austenite recrystallization zone, and the steel plate thus obtained is rolled into a 2″C7a @e. At least 55 with an average cooling rate of
High-strength austenite with excellent corrosion resistance that can be used at room and high temperatures by accelerated cooling to a temperature of 0C.
This is a method for manufacturing stainless steel materials.
更に第２発明は、上述の如き組成のオーステナイト・ス
テンレス鋼片を１０００℃以上の温度に加熱し、この後
、加熱し九前記鋼片を、オーステナイトの再結晶域で圧
下を加えるとともにオーステナイトの未再結晶域でも圧
下を加え８００℃以上で熱間圧延を施し、ついで、この
ようにして得られた鋼板を２ヅｌ＠ｃ以上の平均冷却速
度で少なくとも５５０℃の温度まで加速冷却することｆ
ｊｒ：％徴とする、耐食性に優れた常温および高温域で
の高強度オーステナイト・ステンレス鋼材の製造方法で
ある。Furthermore, the second invention is to heat an austenitic stainless steel piece having the above-mentioned composition to a temperature of 1000°C or higher, and then to apply pressure to the steel piece in the austenite recrystallization region and to remove the austenite. Hot rolling is carried out at 800°C or higher by applying reduction in the recrystallization region, and then the steel sheet thus obtained is acceleratedly cooled to a temperature of at least 550°C at an average cooling rate of 2°C or higher.
This is a method for producing high-strength austenitic stainless steel material with excellent corrosion resistance in the room temperature and high temperature ranges, where jr: %.
この発明において、前記元素を含有するオーステナイト
・ステンレス鋼片を１０００℃以上の温度に加熱するの
は、Ｃｒ炭化物をマトリックスに十分に固溶させるため
である。前記鋼片の加熱温度が１０００℃未満の場合に
はＣｒ炭化物がマ） ＩＪソックス十分に溶けないため
に、耐食性に優れたオーステナイト・ステンレス鋼板を
製造することができない。In this invention, the reason why the austenitic stainless steel piece containing the above elements is heated to a temperature of 1000° C. or higher is to sufficiently dissolve Cr carbide in the matrix. If the heating temperature of the steel piece is less than 1000° C., the Cr carbide will not melt sufficiently, making it impossible to produce an austenitic stainless steel sheet with excellent corrosion resistance.
次に、圧延条件について第２発明において、オーステナ
イトの未再結晶域での圧下全必須にしたのは、これが高
強度を得る次めに必要条件だからであり、圧延温度の下
限値を８００℃としたことについては、８００℃未満の
温度域で圧下を加えると、強度上はよシ有利となるもの
の、Ｃｒ炭化物などの歪誘起析出により耐食性が劣化す
る為、これを下限とする。それに対し、第１発明で圧下
をオーステナイトの再結晶域に限定したのは、それほど
の高強度が必要で無い場合や、組織の均一性が要求され
た場合に対応する九めである。Next, regarding the rolling conditions, in the second invention, rolling in the non-recrystallized region of austenite is mandatory because this is the next necessary condition for obtaining high strength, and the lower limit of the rolling temperature is set at 800°C. Regarding this, applying a reduction in a temperature range of less than 800° C. is advantageous in terms of strength, but corrosion resistance deteriorates due to strain-induced precipitation of Cr carbides, so this is set as the lower limit. On the other hand, in the first invention, the reduction is limited to the recrystallized region of austenite, which corresponds to cases where such high strength is not required or when uniformity of structure is required.
次に、圧延後の前記鋼板の冷却条件であるが、圧延後の
冷却速度が２′ｃ７′ｓ＠ｃ未満の場合、または冷却停
止温度が５５０℃を上回る場合には、冷却途中でＣｒ炭
化物などが析出して耐食性が劣化する。Next, regarding the cooling conditions for the steel plate after rolling, if the cooling rate after rolling is less than 2'c7's@c, or if the cooling stop temperature exceeds 550°C, Cr carbide will be formed during cooling. etc. will precipitate and the corrosion resistance will deteriorate.
従って、本発明では熱間圧延後の前記鋼板を２’Ｃ／＃
＠ｅ以上の平均冷却速度で少なくとも５５０℃の温度ま
で加速冷却するものである。Therefore, in the present invention, the steel plate after hot rolling is 2'C/#
Accelerated cooling is performed to a temperature of at least 550° C. at an average cooling rate of @e or higher.
次に１この発明の実施例について説明する。Next, one embodiment of the present invention will be described.
第１図はオーステナイト・ステンレス鋼の本発明製造プ
ロセスを第２図の従来法と比較して示す。FIG. 1 shows the manufacturing process of the present invention for austenitic stainless steel in comparison with the conventional method shown in FIG.
第１表に示す元素を含有するオーステナイト・ステンレ
ス鋼（鋼種Ａ、Ｂ、Ｃ，Ｄ、Ｅ、Ｆ及びＧ）を第２表に
示す如き条件で第１図に示す如く熱間圧延後種々の加速
冷却条件で冷却した。一部比較のため熱間圧延後空冷し
たもの及び溶体化処理を実施した〇
これらの熱間圧延及び冷却条件ならびにこれらの鋼板の
引張試験、しゆう酸エツチングの試験結果、ストライカ
−試験結果、高温特性を第２表に示す。Austenitic stainless steels (steel types A, B, C, D, E, F, and G) containing the elements shown in Table 1 were hot-rolled under the conditions shown in Table 2 as shown in Figure 1, and then subjected to various Cooled under accelerated cooling conditions. For comparison, hot-rolled and air-cooled steel plates and solution-treated steel plates were used. These hot rolling and cooling conditions, as well as the tensile test results, oxalic acid etching test results, striker test results, and high temperature The characteristics are shown in Table 2.
第２表中のしゆう酸エッチ試験はＪＩＳに基づくもので
あり、○印は段状組織をΔ印は混合組織をそ孔ぞれ示す
。又、ＡＳＴＭにもとづくストライカ−試験は、高Ｎｌ
オーステナイトステンレス鋼の鋭敏化を検出するもので
、Ｑ印は試験材の腐食ｉ：／溶体化材の腐食量≦１の場
合を示す。なお壷は未再結晶域の圧延材を示す。The oxalic acid etch test in Table 2 is based on JIS, and ○ marks indicate a stepped structure, and Δ marks indicate a mixed structure. Also, the striker test based on ASTM
It detects the sensitization of austenitic stainless steel, and the mark Q indicates the case where corrosion i of the test material/corrosion amount of solution material≦1. Note that the pot shows the rolled material in the non-recrystallized area.
第２表から明らかなように、鋼種Ａにおいて、本発明材
たる鋼板２．３．５は、溶体化処理材１にくらべ室温で
の強度・高温強度特性に著しく優れ、耐食性も遜色が無
い。特に、未再結晶域での圧下を加えた鋼板３では高強
度が得られている。As is clear from Table 2, in steel type A, steel plate 2.3.5, which is a material of the present invention, has significantly superior strength at room temperature and high temperature strength properties compared to solution-treated material 1, and is comparable in corrosion resistance. In particular, high strength is obtained in the steel plate 3 subjected to reduction in the non-recrystallized region.
比較材４は圧延仕上がり温度が低く、強度は高いものの
、耐食性に劣る。比較材６は圧延後に空冷されたもので
あシ、やはり耐食性に劣る。Comparative material 4 has a low finishing temperature and high strength, but is inferior in corrosion resistance. Comparative material 6 was air-cooled after rolling, and is also inferior in corrosion resistance.
鋼種Ｂにおいては、溶体化材７にくらべ本発明材８，１
０は良好な強度を示し、耐食性も良好である。加速冷却
の停止温度が６００℃と高い比較材９は高強度ではある
ものの、耐食性におとる。In steel type B, compared to solution treated material 7, inventive material 8,1
0 indicates good strength and good corrosion resistance. Comparative material 9, which has a high accelerated cooling stop temperature of 600° C., has high strength but poor corrosion resistance.
鋼種Ｃでは、溶体化処理材１１にくらべ、板厚がそれぞ
れ１０．４０，１００ｍで加速冷却停止温度が６００℃
から室温までの本発明材１２゜１３．１４はやはシ優れ
た強度、耐食性をしめす・鋼種り、Ｅでは溶体化処理材
１５．１７にくらべ、本発明材１６．１８はやはシ優れ
た特性をしめず事が分かる。For steel type C, compared to solution-treated material 11, the plate thickness is 10.40 m and 100 m, respectively, and the accelerated cooling stop temperature is 600°C.
Inventive material 12°13.14 shows superior strength and corrosion resistance from to room temperature.For steel grade E, inventive material 16.18 exhibits superior strength and corrosion resistance compared to solution-treated material 15.17. You can understand things without looking at the characteristics.
鋼種Ｆ、Ｇでも、溶体化材１９．２１に比べ、未再結晶
域で圧下した本発明材の耐食性は遜色なく、かつ優れた
強度を示す。Even for steel types F and G, the corrosion resistance of the present invention material rolled in the non-recrystallized region is comparable to that of the solution treated material 19.21, and it exhibits excellent strength.
以上の説明はオーステナイト・ステンレス鋼板を製造す
る場合であるが、他の鋼材を製造する場合にもこの発明
を適用することができることは勿論である。Although the above explanation is for manufacturing an austenitic stainless steel plate, it goes without saying that the present invention can also be applied to manufacturing other steel materials.
紙上の如く、本発明のオーステナイト・ステンレス鋼材
の製造法によれば、溶体化処理を施す場合のように、再
加熱炉を必要とせず、耐食性に優れ、かつ降伏強度の高
いオーステナイト・ステンレス鋼材を製造できていった
極めて有用な効果がもたらされるものである。As described in the paper, the method for manufacturing austenitic stainless steel materials of the present invention does not require a reheating furnace unlike the case of solution treatment, and can produce austenitic stainless steel materials with excellent corrosion resistance and high yield strength. This produces extremely useful effects.
第１図及び第２図は夫々本発明方法と従来における時間
と温度と関係のオーステナイト・ステンレス鋼の製造法
説明図である。
代理人 弁理士 佐 藤 正 年
第１図
第２図
碕蘭−
１、事件の表示
特願昭６０−１１４１９４
オーステナイト・ステンレス鋼材の製造方法〜覇 （４
１２）日本鋼管株式会社
４、代理人
７、補正の内容
（υ明細書第１０頁の第１表並に同第１３頁の表２を夫
々別紙１及び２の如く補正する。FIGS. 1 and 2 are explanatory diagrams of the method of the present invention and the conventional method of manufacturing austenitic stainless steel in relation to time and temperature, respectively. Agent Patent Attorney Tadashi Sato Figure 1 Figure 2 Sekiran - 1. Case Indication Patent Application 1986-114194 Process for Manufacturing Austenitic Stainless Steel Materials - Ha (4
12) Nippon Kokan Co., Ltd. 4, Agent 7, Contents of amendment (v) Table 1 on page 10 of the specification and Table 2 on page 13 of the same specification are amended as shown in Attachments 1 and 2, respectively.
Claims (2)
上の温度に加熱し、該加熱鋼片をオーステナイトの再結
晶域で熱間圧延を施し、ついで、得られた鋼板を２℃／
ｓｅｃ以上の平均冷却速度で、少なくとも５５０℃の温
度まで加速冷却することを特徴とする、耐食性に優れた
常温および高温域での高強度オーステナイト・ステンレ
ス鋼材の製造方法。(1) Heat an austenitic stainless steel piece to a temperature of 1000°C or higher, hot-roll the heated steel piece in an austenite recrystallization zone, and then roll the obtained steel plate at 2°C/
A method for producing a high-strength austenitic stainless steel material with excellent corrosion resistance in the room temperature and high temperature ranges, the method comprising accelerated cooling to a temperature of at least 550° C. at an average cooling rate of sec or more.
上の温度に加熱し、該加熱鋼片を、オーステナイトの再
結晶域で圧下を加えるとともにオーステナイトの未再結
晶域でも圧下を加え８００℃以上で熱間圧延を施し、つ
いで、得られた鋼板を２℃／ｓｅｃ以上の平均冷却速度
で、少なくとも５５０℃の温度まで加速冷却することを
特徴とする、耐食性に優れた常温および高温域での高強
度オーステナイト・ステンレス鋼材の製造方法。(2) Heating an austenitic stainless steel piece to a temperature of 1000°C or higher, applying pressure reduction in the austenite recrystallized area and also applying pressure reduction in the austenite non-recrystallized area, and hot rolling the heated steel piece at 800°C or higher. High strength austenite with excellent corrosion resistance at room temperature and high temperature range, which is characterized by rolling and then accelerated cooling of the obtained steel plate to a temperature of at least 550°C at an average cooling rate of 2°C/sec or more.・Manufacturing method for stainless steel materials.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11419485A JPS61272317A (en) | 1985-05-29 | 1985-05-29 | Manufacture of high strength austenitic stainless steel material at normal and high temperature range superior in corrosion resistance |
| GB08611108A GB2175825A (en) | 1985-05-29 | 1986-05-07 | Method for producing an austenitic stainless steel plate |
| CA000508777A CA1276529C (en) | 1985-05-29 | 1986-05-09 | Method for producing an austenitic stainless steel plates showing highcorrosion resistance and high mechanical strength at ambient and elevated temperatures |
| FR8607556A FR2582673A1 (en) | 1985-05-29 | 1986-05-27 | PRODUCTION OF AUSTENITIC STAINLESS STEEL SHEET |
| DE19863617907 DE3617907A1 (en) | 1985-05-29 | 1986-05-28 | METHOD FOR PRODUCING AUSTENITIC STAINLESS STEEL PLATES WITH HIGH CORROSION RESISTANCE AND HIGH MECHANICAL STRENGTH AT AMBIENT TEMPERATURE AND AT HIGH TEMPERATURES |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11419485A JPS61272317A (en) | 1985-05-29 | 1985-05-29 | Manufacture of high strength austenitic stainless steel material at normal and high temperature range superior in corrosion resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61272317A true JPS61272317A (en) | 1986-12-02 |
Family
ID=14631552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11419485A Pending JPS61272317A (en) | 1985-05-29 | 1985-05-29 | Manufacture of high strength austenitic stainless steel material at normal and high temperature range superior in corrosion resistance |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS61272317A (en) |
| CA (1) | CA1276529C (en) |
| DE (1) | DE3617907A1 (en) |
| FR (1) | FR2582673A1 (en) |
| GB (1) | GB2175825A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62267418A (en) * | 1986-05-14 | 1987-11-20 | Kawasaki Steel Corp | Manufacture of high strength austenitic stainless steel |
| JPS62267419A (en) * | 1986-05-13 | 1987-11-20 | Kawasaki Steel Corp | Manufacture of austenitic stainless steel plate |
| JPS63186822A (en) * | 1987-01-29 | 1988-08-02 | Nkk Corp | Production of high strength austenitic stainless steel |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60208459A (en) * | 1984-03-30 | 1985-10-21 | Aichi Steel Works Ltd | High strength stainless steel and its manufacture |
| DE3825634C2 (en) * | 1988-07-28 | 1994-06-30 | Thyssen Stahl Ag | Process for the production of hot baths or heavy plates |
| DE19755409A1 (en) * | 1997-12-12 | 1999-06-17 | Econsult Unternehmensberatung | Stainless structural steel and process for its manufacture |
| DE10021323A1 (en) * | 2000-05-02 | 2001-11-08 | Sket Walzwerkstechnik Gmbh | Production of a high strength austenitic steel comprises rolling or forging the steel at deformation temperatures below the solution annealing temperature, and producing a very fine |
| US20040156737A1 (en) * | 2003-02-06 | 2004-08-12 | Rakowski James M. | Austenitic stainless steels including molybdenum |
| DE102014221068A1 (en) * | 2014-10-16 | 2016-04-21 | Sms Group Gmbh | Plant and method for the production of heavy plates |
| CN113584382A (en) * | 2021-07-06 | 2021-11-02 | 广东省科学院新材料研究所 | Iron-based ceramic composite material and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55107729A (en) * | 1979-02-13 | 1980-08-19 | Sumitomo Metal Ind Ltd | Solution-treating method for austenitic stainless steel |
| JPS60208459A (en) * | 1984-03-30 | 1985-10-21 | Aichi Steel Works Ltd | High strength stainless steel and its manufacture |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6037172B2 (en) * | 1978-03-11 | 1985-08-24 | 新日本製鐵株式会社 | Manufacturing method of unidirectional silicon steel sheet |
| US4473414A (en) * | 1980-03-31 | 1984-09-25 | Kawasaki Steel Corporation | High tensile strength cold rolled steel sheets and high tensile strength hot-dip galvanized steel sheets |
| CA1196555A (en) * | 1981-12-28 | 1985-11-12 | Ruzica Petkovic-Luton | Thermal mechanical treatment for enhancing high temperature properties of cast austenitic steel structures |
| JPS60197817A (en) * | 1984-03-19 | 1985-10-07 | Nippon Kokan Kk <Nkk> | Manufacture of austenitic stainless steel material having high yield strength and superior corrosion resistance |
-
1985
- 1985-05-29 JP JP11419485A patent/JPS61272317A/en active Pending
-
1986
- 1986-05-07 GB GB08611108A patent/GB2175825A/en not_active Withdrawn
- 1986-05-09 CA CA000508777A patent/CA1276529C/en not_active Expired - Lifetime
- 1986-05-27 FR FR8607556A patent/FR2582673A1/en active Pending
- 1986-05-28 DE DE19863617907 patent/DE3617907A1/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55107729A (en) * | 1979-02-13 | 1980-08-19 | Sumitomo Metal Ind Ltd | Solution-treating method for austenitic stainless steel |
| JPS60208459A (en) * | 1984-03-30 | 1985-10-21 | Aichi Steel Works Ltd | High strength stainless steel and its manufacture |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62267419A (en) * | 1986-05-13 | 1987-11-20 | Kawasaki Steel Corp | Manufacture of austenitic stainless steel plate |
| JPS62267418A (en) * | 1986-05-14 | 1987-11-20 | Kawasaki Steel Corp | Manufacture of high strength austenitic stainless steel |
| JPS63186822A (en) * | 1987-01-29 | 1988-08-02 | Nkk Corp | Production of high strength austenitic stainless steel |
| JPH0575809B2 (en) * | 1987-01-29 | 1993-10-21 | Nippon Kokan Kk |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1276529C (en) | 1990-11-20 |
| GB2175825A (en) | 1986-12-10 |
| FR2582673A1 (en) | 1986-12-05 |
| DE3617907A1 (en) | 1986-12-04 |
| GB8611108D0 (en) | 1986-06-11 |
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