JPH04168227A - Production of austenitic stainless steel sheet or strip - Google Patents

Production of austenitic stainless steel sheet or strip

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Publication number
JPH04168227A
JPH04168227A JP29357890A JP29357890A JPH04168227A JP H04168227 A JPH04168227 A JP H04168227A JP 29357890 A JP29357890 A JP 29357890A JP 29357890 A JP29357890 A JP 29357890A JP H04168227 A JPH04168227 A JP H04168227A
Authority
JP
Japan
Prior art keywords
weight
stainless steel
austenitic stainless
less
rolled
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
Application number
JP29357890A
Other languages
Japanese (ja)
Inventor
Yoshihiro Yazawa
好弘 矢沢
Satoru Owada
哲 大和田
Keiichi Yoshioka
吉岡 啓一
Noboru Kinoshita
昇 木下
Masayuki Hino
肥野 真行
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP29357890A priority Critical patent/JPH04168227A/en
Publication of JPH04168227A publication Critical patent/JPH04168227A/en
Pending legal-status Critical Current

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  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

PURPOSE:To prevent the generation of pocket wave defects at the time of forming an austenitic stainless steel sheet or strip by heat-treating the final cold-rolled, finish-annealed and skin pass-rolled sheet under specified temp. conditions. CONSTITUTION:An austenitic stainless steel slab contg., by weight, <0.08% C, <2.0% Si, <5.0% Mn, 11-32% Cr, 5-25% Ni, <0.2% N or further at least one kind among 0.1-6.0% among 0.1-6.0% Mo, 0.1-3.0% Cu, 0.1-0.9% Nb, <1.0% Ti, V and Zr and <0.005% B is hot-rolled, annealed and cold-rolled into a sheet. The sheet is finish-annealed, then skin pass-rolled and finally aged at 300-700 deg.C for 5sec to 50hr. When the austenitic stainless steel sheet or strip is press-formed or roll-formed into a product, pocket wave defects, which means the ruggednesses of the bottom and side plate of the product, are never generated.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、プレス成形加工或はロール成形加工時に発生
するポケットウェーブを防止することができるオーステ
ナイト系ステンレス鋼板又は鋼帯の製造方法に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing an austenitic stainless steel plate or steel strip that can prevent pocket waves generated during press forming or roll forming.

[従来の技術] 通常オーステナイト系ステンレス鋼板又は鋼帯は、熱間
圧延後、熱延板焼鈍、酸洗され、1回または中間焼鈍を
挟んだ2回以上の冷間在廷後、最終焼鈍、スキンパス圧
延を経て製品化される。
[Prior Art] Normally, austenitic stainless steel sheets or steel strips are hot-rolled, hot-rolled, annealed, pickled, cold-tempered once or twice or more with an intermediate annealing in between, and then subjected to final annealing. The product is manufactured through skin pass rolling.

[発明が解決しようとする課題1 ところで、これらのオーステナイト系ステンレス鋼板又
は鋼帯の製品に対してプレス成形加工やロール成形加工
を行う場合、加工品の底板部や側板部が凹凸になるポケ
ットウェーブ(オイルキャンとも呼ぶ)が発生し、加工
品の外観を損うことが問題となっていた。なお、従来の
深絞り加工改善として、特開昭57−79122号公報
に記載されたように、冷間圧延をするにあたり冷間圧延
パス間で100〜450℃の温度で10秒以上の時効を
少なくとも一回施すことにより深絞り加工性を改善する
方法が知られている。またフェライト系ステンレス鋼に
ついては特開平02〜185916号公報に記載された
ように仕上圧延の圧下率を82%とすることで耐候性・
耐食性を確保し、かつポケットウェーブを軽減する方法
が提唱されている。
[Problem to be Solved by the Invention 1] By the way, when press forming or roll forming is performed on products made of these austenitic stainless steel plates or steel strips, pocket waves, which make the bottom plate and side plate parts of the processed product uneven, occur. (Also called oil can) occurs, which damages the appearance of processed products, which has become a problem. In addition, as an improvement to the conventional deep drawing process, as described in Japanese Patent Application Laid-Open No. 57-79122, aging for 10 seconds or more at a temperature of 100 to 450°C between cold rolling passes is performed during cold rolling. A method of improving deep drawability by applying it at least once is known. Regarding ferritic stainless steel, as described in JP-A-02-185916, weather resistance and
Methods have been proposed to ensure corrosion resistance and reduce pocket waves.

しかしながら、オーステナイト系ステンレス鋼板又は鋼
帯のポケットウェーブ防止に関してはこれを抜本的に解
決し得る製造技術の確立は未だなされでいなかった。
However, with regard to the prevention of pocket waves in austenitic stainless steel sheets or steel strips, a manufacturing technology that can fundamentally solve this problem has not yet been established.

本発明は、プレス成形加工或はロール成形加工時に発生
するボケ・ントウェーブを防止し得るオーステナイト系
ステンレス鋼板又は鋼帯を製造することを目的とする。
An object of the present invention is to produce an austenitic stainless steel plate or steel strip that can prevent blurring and waves that occur during press forming or roll forming.

〔課題を解決するための手段j 本発明は。[Means to solve the problem The present invention is.

C・0.08重量%以下、 Si:2.0重量%以下、 Mn:5.0重量%以下、 Cr:11〜32重置%、 N1:5〜25重量%、 N:0.2重量%以下、 を含み残部はFe及び不可避的不純物からなるオーステ
ナイト系ステンレス鋼板又は鋼帯を冷間圧延、仕上焼鈍
及びスキンパス圧延後、300〜700°Cの温度でS
秒置上50時間以下の熱処理を施すことを特徴とするオ
ーステナイト系ステンレス鋼板又は鋼帯の製造方法であ
る。
C: 0.08% by weight or less, Si: 2.0% by weight or less, Mn: 5.0% by weight or less, Cr: 11-32% by weight, N1: 5-25% by weight, N: 0.2% by weight % or less, with the remainder consisting of Fe and unavoidable impurities. After cold rolling, finish annealing and skin pass rolling, an austenitic stainless steel plate or steel strip is subjected to S at a temperature of 300 to 700°C.
This is a method for producing an austenitic stainless steel plate or steel strip, which is characterized by subjecting the method to heat treatment for 50 hours or less.

オーステナイト系ステンレス鋼板又は鋼帯が成分として
さらに M o : O,1〜6.0重量%、 Cu:0.1〜3.0重置%、 Nb:O,L〜0.9重量%。
Further components of the austenitic stainless steel plate or steel strip include Mo: O, 1 to 6.0% by weight, Cu: 0.1 to 3.0% by weight, and Nb: O, L to 0.9% by weight.

T i、V、Zr : 1.0重置%以下、B:0.0
05重量%以下、 を含むものとすればさらに好適である。
T i, V, Zr: 1.0% or less, B: 0.0
It is even more preferable that it contains 0.05% by weight or less.

〔作用1 本発明者らは、オーステナイト系ステンレス鋼板又は鋼
帯をプレス成形加工あるいはロール成形加工する場合、
発生するポケットウェーブを防止する方法として従来の
製造工程、すなわち、熱間圧延後、熱延焼鈍、酸洗、1
回または中間焼鈍を挟んだ2回以上の冷間圧延、最終焼
鈍、スキンパス圧延という製造工程に引き続いて適切な
条件で焼鈍を行えばプレス成形加工あるいはロール成形
加工時にポケットウェーブを防止できることを発見した
[Effect 1] When the present inventors press-form or roll-form an austenitic stainless steel plate or steel strip,
As a method to prevent pocket waves from occurring, conventional manufacturing processes, ie, after hot rolling, hot rolling annealing, pickling,
It was discovered that pocket waves can be prevented during press forming or roll forming by performing annealing under appropriate conditions following the manufacturing process of two or more cold rollings with intermediate or intermediate annealing, final annealing, and skin pass rolling. .

以下、本発明の特徴的構成とその作用について説明する
Hereinafter, the characteristic structure of the present invention and its operation will be explained.

11本発明は従来の製造工程に引き続いて300〜70
0°Cの温度範囲で5秒以上50時間以下の時効熱処理
を行うことを特徴とするものである。ここで時効温度を
300℃と限定した理由は300°C未満ではポケット
ウェーブを防出する効果の程度が少ないため、その下限
を300 ’Cとした。また、その上限を700℃と限
定した理由は、700℃を越えるとその効果が飽和する
と共に、耐食性が著しく劣化し、さらに素材の表面形状
が悪くなるといったことから、その上限を700℃とし
た。また熱処理時間を5秒以上とした理由は5秒未満の
時間ではその効果が少ないため、その下限を5秒とした
。また50時間以下とした理由は50時間を越えるとそ
の効果がほぼ飽和値に達するとともに表面の耐食性が著
しく劣化するため、その上限を50時間とした。
11 The present invention follows the conventional manufacturing process to produce 300 to 70
It is characterized by performing aging heat treatment at a temperature range of 0°C for 5 seconds or more and 50 hours or less. The reason why the aging temperature was limited to 300°C is that the effect of preventing pocket waves is low below 300°C, so the lower limit was set to 300'C. In addition, the reason why the upper limit was set at 700°C is that if the temperature exceeds 700°C, the effect will be saturated, corrosion resistance will deteriorate significantly, and the surface shape of the material will deteriorate. . Further, the reason why the heat treatment time was set to be 5 seconds or more is because the effect is small if the heat treatment time is less than 5 seconds, so the lower limit is set to 5 seconds. Further, the reason why the heating time was set to 50 hours or less is that if the effect exceeds 50 hours, the effect reaches almost a saturation value and the corrosion resistance of the surface deteriorates significantly, so the upper limit was set to 50 hours.

(2)また、本発明にあっては、オーステナイト系ステ
ンレス鋼板または鋼帯の成分組成を■  C:0.08
重量%以下、 Si:2.0重量%以下、 Mn:5.0重量%以下、 Cr:ll 〜32重置%、 Ni:5〜25重量%、 N:O−2重量%以下、 を含み残部はFe及び不可避的不純物とする。
(2) In addition, in the present invention, the composition of the austenitic stainless steel plate or steel strip is ■ C: 0.08
% by weight or less, Si: 2.0% by weight or less, Mn: 5.0% by weight or less, Cr: 11 to 32% by weight, Ni: 5 to 25% by weight, N: O-2% by weight or less. The remainder is Fe and unavoidable impurities.

■ 上記■の成分に加えてさらに Mo:0.1〜6.0重量%、 Cu : 0.1〜3.0重量%、 N b : 0.1〜0.9重量%、 Ti、V、Zr : 1.0重量%以下、B:0.00
5重量%以下、 を含むオーステナイト系ステンレス鋼板又は鋼帯とすれ
ばさらに好適である。
■ In addition to the above component (■), Mo: 0.1 to 6.0% by weight, Cu: 0.1 to 3.0% by weight, Nb: 0.1 to 0.9% by weight, Ti, V, Zr: 1.0% by weight or less, B: 0.00
It is even more preferable to use an austenitic stainless steel plate or steel strip containing 5% by weight or less.

以下、上記各成分の限定理由についで説明する。The reasons for limiting each of the above components will be explained below.

Cr : Crは耐食性改善に欠くことができない重要
成分である。Cr添加量を11重量%以上とした理由は
、11重量%未満のCr添加量では耐食性が十分でない
ため、その下限を11重量%とした。また、32重量%
以下とした理由は322重丸を越えると耐食性改善の効
果が飽和してくるとともに成形加工性が低下し経済的で
はないのでその上限を32重量%とした。
Cr: Cr is an important component indispensable for improving corrosion resistance. The reason why the amount of Cr added was set at 11% by weight or more is that the corrosion resistance is not sufficient if the amount of Cr added is less than 11% by weight, so the lower limit was set at 11% by weight. Also, 32% by weight
The reason for the following is that when the amount exceeds 322 circles, the effect of improving corrosion resistance becomes saturated and the moldability decreases, making it uneconomical, so the upper limit was set at 32% by weight.

N、Nは耐食性、耐摩耗性向上に有効な成分である。し
かしながらその効果は0.2重量%を越えると飽和する
と共に、逆に耐食性・加工性が低下する傾向にある。そ
こで上限を0.2重量%と定めた。また下限については
、N量がいくら低くても何ら悪影響を与えないのでその
下限については限定しない。
N and N are effective components for improving corrosion resistance and wear resistance. However, this effect becomes saturated when the content exceeds 0.2% by weight, and corrosion resistance and processability tend to decrease. Therefore, the upper limit was set at 0.2% by weight. Further, the lower limit is not limited because no matter how low the N amount is, it will not have any adverse effects.

C:Cは粒界腐食感受性という観点から低い方が好まし
い。ただしその含有量が0.08重量%を越えると粒界
腐食感受性が増大し、耐食性が著しく低下するため上限
値を0.09重量%と定めた。
C: A lower C value is preferable from the viewpoint of intergranular corrosion susceptibility. However, if the content exceeds 0.08% by weight, susceptibility to intergranular corrosion increases and corrosion resistance significantly decreases, so the upper limit was set at 0.09% by weight.

Ni:Niはオーステナイト形成に有効な元素であると
共に、オーステナイト組織の安定化のためには少なくと
も5重量%以上のNiが必要である。そこでその下限値
を5重量%とした。またその上限を25重置%とした理
由は25重量%を越えると炭化物の粒界析出を促進し熱
間加工性を阻害すると共に著しく固くなり成形加工性が
劣化するからである。
Ni: Ni is an element effective in forming austenite, and at least 5% by weight or more of Ni is required to stabilize the austenite structure. Therefore, the lower limit was set at 5% by weight. The reason why the upper limit is set to 25% by weight is that if it exceeds 25% by weight, grain boundary precipitation of carbides is promoted, hot workability is inhibited, and the material becomes extremely hard, resulting in deterioration of moldability.

Mn:MnもNi同様オーステナイト生成元素であるた
めMn添加量を増加することによりオーステナイト相を
安定としNi添加量を減らすことができる。またMnの
添加は熱間加工性改善のに有効であるが、その添加量が
5重量%を越えると成形加工性・耐食性が劣化するため
その1限を5重量%とした。
Mn: Like Ni, Mn is also an austenite forming element, so by increasing the amount of Mn added, the austenite phase can be stabilized and the amount of Ni added can be reduced. Furthermore, although the addition of Mn is effective in improving hot workability, if the amount added exceeds 5% by weight, moldability and corrosion resistance deteriorate, so the upper limit was set at 5% by weight.

Si :Siについては脱酸作用を持つため有用な成分
であるが、その添加量が3.0重量%を越えると溶接割
れや脆化を促進すると共に硬くなり、成形加工性が低下
するためその上限を2.0重置%とした。
Si: Si is a useful component because it has a deoxidizing effect, but if the amount added exceeds 3.0% by weight, it will promote weld cracking and embrittlement, become hard, and reduce formability. The upper limit was set to 2.0%.

Mo:Moは、耐食性改善元素であるが、Mo量を0.
1重量%以上にした理由は、孔食の進行を抑制するため
には最低限必要Mo添加量がO,1重量%以上だから、
その下限を0.2重量%とした。
Mo: Mo is an element that improves corrosion resistance, but when the amount of Mo is 0.
The reason why it is set at 1% by weight or more is that the minimum required amount of Mo to be added is 1% by weight or more in order to suppress the progress of pitting corrosion.
The lower limit was set at 0.2% by weight.

また、6.0重量%以上とした理由は6.0重量%を越
えてもその効果が飽和すると共に硬(なり成形加工性が
著しく低下するため、その上限を6.0重量%とした。
Further, the reason for setting the content to be 6.0% by weight or more is that even if it exceeds 6.0% by weight, the effect is saturated and it becomes hard (and the moldability is significantly lowered), so the upper limit was set to 6.0% by weight.

Cu : Cuも耐食性改善元素であるが、Cu添加量
をO,1重置%以上とした理由はO,1重量%未溝の添
加では孔食の進行を抑制する効果がほとんどないため、
その下限を0.1重量%とした。また3、0重量%以下
とした理由は、3.0重量%を越えるとその効果が飽和
し、かつ成形加工性が低下するから、その上限を3.0
重量%とした。
Cu: Cu is also an element that improves corrosion resistance, but the reason why the amount of Cu added is set to 1% by weight or more is because the addition of 1% by weight of O without grooves has almost no effect in suppressing the progress of pitting corrosion.
The lower limit was set at 0.1% by weight. The reason for setting the upper limit to 3.0% by weight is that if it exceeds 3.0% by weight, the effect will be saturated and the moldability will decrease.
It was expressed as weight%.

Nb、Ti、V、Zr、B:Nb、Ti、V、Zr、H
の各元素は、炭化物及び窒素化物形成元素であり耐食性
及び成形加工性向上をもたらす。
Nb, Ti, V, Zr, B: Nb, Ti, V, Zr, H
Each element is a carbide- and nitride-forming element and improves corrosion resistance and moldability.

Nb添加量を0.1重量%以上にした理由は0.1重置
%未満のNb添加では炭化物の粒界析出を抑制する効果
が認められず耐食性改善が期待できないから、その下限
をO,1重量%とした。また0、9重量%以下とした理
由は0.9を越えて添加すると炭窒化物の析出量が増加
逆に加工性を損うので、その上限を0.9重量%とした
The reason why the amount of Nb added is set to 0.1% by weight or more is that if the amount of Nb added is less than 0.1% by weight, the effect of suppressing the grain boundary precipitation of carbides is not observed and no improvement in corrosion resistance can be expected. The content was 1% by weight. The reason for setting the content to 0.9% by weight or less is that if it is added in excess of 0.9%, the amount of carbonitrides precipitated increases, and conversely, the workability is impaired, so the upper limit was set to 0.9% by weight.

Ti、V、Zrの添加量を1.0重置%以下、Bの添加
量をそれぞれ0. OO5重量%以下とした理由は、そ
れぞれ前述した値を越えて添加すると成形加工性が低下
するため、その上限を1.0信置%とじた。
The amounts of Ti, V, and Zr added are 1.0% or less, and the amounts of B are each 0.0%. The reason for setting the OO content to 5% by weight or less is that molding processability deteriorates when added in excess of the above-mentioned values, so the upper limit was set at 1.0% by weight.

〔実施例J 本発明者らは、第1表に示したような化学組成を持つオ
ーステナイト系ステンレス鋼スラブを1200℃に加熱
後、4mm厚に熱間圧延し。
[Example J The present inventors heated an austenitic stainless steel slab having a chemical composition as shown in Table 1 to 1200° C., and then hot rolled it to a thickness of 4 mm.

800℃1100℃の温度範囲で熱延扱焼鈍後0、3 
m m厚に冷間圧延し、引続き800°C〜1100℃
で仕上焼鈍後、スキンバス圧延(圧下率:約1%に相当
)を行う通常の製造工程にて鋼板を製造した。その後こ
れらの材料に対し第2表から第4表に示すように、種々
の条件で熱処理を施し、第1図に示したような形状にス
テンレス鋼板又は鋼帯lを圧延方向2の方向にロール成
形加工し、ロール成形により生じたポケットウェーブ3
の程度と熱処理条件の関係を調査した。
0,3 after hot rolling treatment and annealing in the temperature range of 800℃1100℃
Cold rolled to a thickness of mm and then heated at 800°C to 1100°C
After final annealing, a steel plate was manufactured using a normal manufacturing process in which skin bath rolling (reduction ratio: equivalent to about 1%) was performed. These materials are then heat treated under various conditions as shown in Tables 2 to 4, and a stainless steel plate or steel strip l is rolled in the rolling direction 2 into the shape shown in Figure 1. Pocket wave 3 created by molding and roll forming
The relationship between the degree of heat treatment and heat treatment conditions was investigated.

第2図、第3図にそれぞれポケットウェーブの程度と熱
処理条件の関係を示す。ポケットウェーブの程度を定量
的に評価する尺度としては、ポケットウェーブが最も発
生しやすいウェーブ中央において渦電流式変位計を走査
することによりポケットウェーブの大小を定量的に評価
することにした。第2表〜第4表に実験結果を示した。
FIGS. 2 and 3 show the relationship between the degree of pocket waves and heat treatment conditions, respectively. As a measure for quantitatively evaluating the degree of pocket waves, we decided to quantitatively evaluate the size of pocket waves by scanning an eddy current displacement meter at the center of the wave where pocket waves are most likely to occur. Experimental results are shown in Tables 2 to 4.

第2表〜第4表によればスキンパス圧延を最終工程とす
る通常の製造工程に加えて、さらに、本発明が規定する
適切な条件での熱処理を施すことにより、ポケットウェ
ーブの発生を防止できることが認められる。
According to Tables 2 to 4, the generation of pocket waves can be prevented by applying heat treatment under appropriate conditions specified by the present invention in addition to the normal manufacturing process with skin pass rolling as the final process. is recognized.

なお、第2表〜第4表においてポケットウェーブの程度
(A−D)は、 A:耐ポケットウェーブ性良好、波の高さh w < 
0.5 m m 。
In addition, in Tables 2 to 4, the degree of pocket waves (A-D) is as follows: A: Good pocket wave resistance, wave height h w <
0.5 mm.

B:波の高さ0.5 m m≦h w < 1.5 m
 m、C:波の高さ1.5 m m≦h w < 2.
5 m m、D:波の高さhw≧2.5 m m 。
B: Wave height 0.5 m m≦h w < 1.5 m
m, C: Wave height 1.5 mm m≦h w <2.
5 mm, D: Wave height hw≧2.5 mm.

をそれぞれ表わす。respectively.

また、耐食性の評価は第5表に示したJISD  02
01に準拠したCASS試験3サイクル後の外観写真を
画像処理し、発錆面積を相対的に評価した。
In addition, the corrosion resistance was evaluated according to JISD 02 shown in Table 5.
The appearance photograph after 3 cycles of the CASS test based on 01 was image-processed, and the rusted area was relatively evaluated.

判定基準としては発錆面積20%未満を良好とし、20
%以上を不良とした。
The criteria for judgment is that less than 20% of the rusted area is considered good;
% or more was considered defective.

[発明の効果] 以上のように本発明によれば、プレス成形加工あるいは
ロール成形加工時に発生するポケットウェーブを防止し
得るオーステナイト系ステンレス鋼板または鋼帯を製造
することができる。
[Effects of the Invention] As described above, according to the present invention, it is possible to produce an austenitic stainless steel plate or steel strip that can prevent pocket waves generated during press forming or roll forming.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は屋根用成形材を示す模式図、第2図は焼鈍温度
とポケットウェーブの高さの関係を示す線区、第3図は
焼鈍時間とポケットウェーブの高さの関係を示す線図、
第4図、第5図はCASS試験3サイクル後の外観写真
を画像処理することにより求めた発錆面積率を熱処理時
間、熱処理温度の関係をそれぞれ示すグラフである。 ■・・・ステンレス鋼板 2・・・圧延方向
Figure 1 is a schematic diagram showing a molded material for roofs, Figure 2 is a line showing the relationship between annealing temperature and pocket wave height, and Figure 3 is a line diagram showing the relationship between annealing time and pocket wave height. ,
FIGS. 4 and 5 are graphs showing the relationship between the rusting area ratio, heat treatment time, and heat treatment temperature, which were determined by image processing the external appearance photographs after three cycles of the CASS test. ■...Stainless steel plate 2...Rolling direction

Claims (1)

【特許請求の範囲】 1 C:0.08重量%以下、 Si:2.0重量%以下、 Mn:5.0重量%以下、 Cr:11〜32重量%、 Ni:5〜25重量%、 N:0.2重量%以下、 を含み残部はFe及び不可避的不純物からなるオーステ
ナイト系ステンレス鋼板又は鋼帯を冷間圧延、仕上焼鈍
及びスキンパス圧延した後、300〜700℃の温度で
5秒以上 50時間以下の熱処理を施すことを特徴とするオーステ
ナイト系ステンレス鋼板又は鋼帯の製造方法。 2 オーステナイト系ステンレス鋼板又は鋼帯が、成分
としてさらに Mo:0.1〜6.0重量%、 Cu:0.1〜3.0重量%、 Nb:0.1〜0.9重量%、 Ti、V、Zr:1.0重量%以下、 B:0.005重量%以下、 のうちから選ばれた少なくとも1種を含むものであるこ
とを特徴とする請求項1記載の オーステナイト系ステンレス鋼板又は鋼帯の製造方法。
[Claims] 1 C: 0.08% by weight or less, Si: 2.0% by weight or less, Mn: 5.0% by weight or less, Cr: 11 to 32% by weight, Ni: 5 to 25% by weight, After cold rolling, finish annealing, and skin pass rolling an austenitic stainless steel plate or steel strip consisting of N: 0.2% by weight or less, with the remainder being Fe and unavoidable impurities, it is heated at a temperature of 300 to 700°C for 5 seconds or more. 1. A method for producing an austenitic stainless steel plate or steel strip, characterized by subjecting it to heat treatment for 50 hours or less. 2 The austenitic stainless steel plate or steel strip further contains Mo: 0.1 to 6.0% by weight, Cu: 0.1 to 3.0% by weight, Nb: 0.1 to 0.9% by weight, and Ti. , V, Zr: 1.0% by weight or less, B: 0.005% by weight or less. manufacturing method.
JP29357890A 1990-11-01 1990-11-01 Production of austenitic stainless steel sheet or strip Pending JPH04168227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29357890A JPH04168227A (en) 1990-11-01 1990-11-01 Production of austenitic stainless steel sheet or strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29357890A JPH04168227A (en) 1990-11-01 1990-11-01 Production of austenitic stainless steel sheet or strip

Publications (1)

Publication Number Publication Date
JPH04168227A true JPH04168227A (en) 1992-06-16

Family

ID=17796551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29357890A Pending JPH04168227A (en) 1990-11-01 1990-11-01 Production of austenitic stainless steel sheet or strip

Country Status (1)

Country Link
JP (1) JPH04168227A (en)

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