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1. 发明专利

JP2009203506A High strength copper plated steel sheet for double-wound pipe, and method for producing the same 有权
标题翻译：用于双重发条管的高强度铜镀层及其制造方法
公开(公告)号：JP2009203506A
公开(公告)日：2009-09-10
申请号：JP2008045532
申请日：2008-02-27
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： HIRATA KENTARO , IWAZU TOMONAGA , MATSUMOTO TAKASHI
IPC分类号： C22C38/00 , B21B3/00 , B21C37/06 , C21D9/46 , C22C38/06
摘要： PROBLEM TO BE SOLVED: To provide a high strength copper plated steel sheet for a double-wound pipe exhibiting a yield stress of ≥300 MPa after the production of the double-wound pipe, further having excellent ductility to withstand expanding of a double-wound pipe, flare working, bending or the like and high copper infiltration resistance, and also having excellent low temperature toughness. SOLUTION: The high strength copper plated steel sheet is obtained by using a cold rolled and annealed steel sheet having a componential composition comprising, by mass, 0.01 to 0.10% C, 0.05 to 1.0% Mn, 0.02 to 0.2% P, 0.03 to 0.10% sol.Al, 0.002 to 0.008% N and 0.002 to 0.005% B, and the balance Fe with inevitable impurities as a base material and applying copper plating to the surface thereof. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于双卷绕管的双重卷绕管的高强度镀铜钢板，其在双卷绕管的生产之后具有≥300MPa的屈服应力，进一步具有优异的延展性以承受膨胀双卷管，火炬加工，弯曲等，铜的耐渗透性高，还具有优异的低温韧性。解决方案：高强度镀铜钢板是通过使用具有质量分数为0.01〜0.10％，0.05〜1.0％Mn，0.02〜0.2％P， 0.03〜0.10％sol.Al，0.002〜0.008％N，0.002〜0.005％B，余量为Fe与不可避免的杂质作为基材，并在其表面进行镀铜。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2008156729A Zn-Al-BASED PLATING-COATED STEEL SHEET EXCELLENT IN UNBENDING RESISTANCE, AND ITS PRODUCTION METHOD 审中-公开
标题翻译：基于Zn-Al的镀层耐磨钢板及其生产方法
公开(公告)号：JP2008156729A
公开(公告)日：2008-07-10
申请号：JP2006349006
申请日：2006-12-26
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： INOUE HARUKI , KOHARI MASASHI , SAKAGUCHI KIMINORI , AKIYAMA ETSUZO , KAJIMOTO ATSUSHI , HATTORI YASUNORI , UENO SUSUMU , MATSUMOTO TAKASHI , YOSHIOKA KAZUYA
IPC分类号： C23C2/06 , C21D9/46 , C22C18/04 , C22C21/10 , C22C38/00 , C23C2/28 , C23C2/40 , C23C26/00
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive coated steel sheet using a hot dip Zn-50 to 60% Al alloy plated steel sheet having excellent corrosion resistance as a base, whose unbending resistance is remarkably improved, and which is suitable for a roof.
SOLUTION: In the Zn-Al-based plating-coated steel sheet excellent in unbending resistance, regarding a coated steel sheet in which the surface of a steel sheet is provided with a plating layer containing, by mass, 50 to 60% Al, and the balance substantially Zn, and the layer upper than the plating layer is provided with a coating film, the cross-sectional hardness H
M (HV) of the base metal and the cross-sectional hardness H
P (HV) of the plating layer satisfy inequality; H
M >H
P and inequality; H
P ≥90. and, preferably, it is further controlled in such a manner that inequality; H
M ≤145 is satisfied as well.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种廉价的涂层钢板，其使用具有优异耐腐蚀性的热浸Zn-50至60％Al合金镀覆钢板作为基材，其耐弯曲性显着提高，并且适用于屋顶。解决方案：在耐弯曲性优异的Zn-Al系镀覆钢板中，对于钢板表面设置有含有质量为50〜60质量％的镀层的镀覆钢板， Al，余量基本上为Zn，并且在镀层上方的层设置有涂膜，贱金属的截面硬度H SB>（HV）和横截面硬度镀层的H P （HV）满足不等式; H M > H P 和不等式; ħ P ≥90。并且优选地以不等式的方式进一步控制; 也满足H M ≤145。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2007182614A HIGH-STRENGTH Al-PLATED STEEL SHEET FOR BAND OF CATHODE RAY TUBE, AND MANUFACTURING METHOD THEREFOR 审中-公开
标题翻译：阴极射线管用高强度镀层钢板及其制造方法
公开(公告)号：JP2007182614A
公开(公告)日：2007-07-19
申请号：JP2006002104
申请日：2006-01-10
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： OMOSAKO KOJI , MATSUMOTO TAKASHI , KONDO TOSHIHIRO , KODAMA SHINICHI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/16 , C23C2/12 , H01J29/87
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To provide a high-strength hot-dip Al-plated steel sheet which is superior in corrosion resistance and formability, is used for a band of a cathode ray tube, and contains a proper amount of solid-solution strengthening elements of Si, Mn and P or precipitation strengthening elements of Ti and Nb for increasing the strength. SOLUTION: A base steel sheet for the Al-plated steel sheet includes 0.05-0.18 mass% C, 0.7 mass% or less Si, 0.5-2.2 mass% Mn, 0.10 mass% or less P, 0.015 mass% or less S, 0.01-0.10 mass% or less Sol. Al, 0.1-0.30 mass% Cu, and further one or two elements of Ti and Nb in a total amount of 0.03-0.12 mass%, or 0.0003-0.0050 mass% B, as needed. The manufacturing method comprises the steps of: forming an Fe-based electroplated layer on the base steel sheet, as needed; and then forming a hot-dip-plated Al layer thereon. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供耐腐蚀性和成形性优异的高强度热浸镀铝钢板，用于阴极射线管的带，并且含有适量的固体 - Si，Mn和P的溶液强化元素或Ti和Nb的析出强化元素以提高强度。镀层钢板的基材钢板包含0.05-0.18质量％的C，0.7质量％以下的Si，0.5〜2.2质量％的Mn，0.10质量％以下的P，0.015质量％以下 S，0.01-0.10质量％以下。 Al，0.1〜0.30质量％的Cu，还有一种或两种Ti和Nb的元素，总量为0.03-0.12质量％，或0.0003-0.0050质量％的B。该制造方法包括以下步骤：根据需要在基材钢板上形成Fe基电镀层; 然后在其上形成热浸镀Al层。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2007046069A Coated steel sheet with excellent appearance after bending, and its manufacturing method 审中-公开
标题翻译：弯曲后具有优异外观的涂层钢板及其制造方法
公开(公告)号：JP2007046069A
公开(公告)日：2007-02-22
申请号：JP2005228412
申请日：2005-08-05
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： YOSHIOKA KAZUYA , SUZAKI TSUNETOSHI , MATSUMOTO TAKASHI
IPC分类号： C22C38/00 , B32B15/08 , C21D9/46 , C22C38/06 , C23C2/06 , C23C2/40
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To provide a coated steel sheet in which, after ordinary hot dipping and coating/baking, yield elongation is suppressed to ≤3% to suppress deterioration in appearance due to the occurrence of buckling pattern and stretcher strain at bending. SOLUTION: A steel slab having a composition which consists of, by mass, 0.01 to 0.10% C, ≤0.3% Si, ≤0.5% Mn, ≤0.05% P, ≤0.02% S, ≤0.04% Al, ≤0.004% N, 0.0002 to 0.0020% B and the balance Fe with inevitable impurities and in which a relation between the contained N and B is regulated to a prescribed relation is subjected to hot rolling at 630 to 750°C hot rolling coiling temperature, and then the cold rolled steel sheet subjected to pickling and cold rolling is subjected to hot dipping treatment while regulating annealing temperature to 650 to 850°C, thereby producing a steel sheet for coating which has a structure having 20 to 80 μm ferrite grain size. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种涂覆钢板，其中在通常的热浸和涂布/烘烤之后，屈服伸长率被抑制到≤3％，以抑制由于屈曲图案和拉伸应变的出现引起的外观劣化弯曲。＆lt; P＆gt;解决方案：具有以质量计0.01％至0.10％Si，≤0.5％Mn，≤0.05％P，≤0.02％S，≤0.04％Al，≤ 0.004％N，0.0002〜0.0020％B，余量为不可避免的杂质，其中N和B之间的关系被调节至规定的关系，在630〜750℃热轧卷取温度下进行热轧，然后将进行酸洗和冷轧的冷轧钢板进行热浸镀处理，同时将退火温度调节至650〜850℃，由此制造具有20〜80μm铁素体晶粒度的结构的涂布用钢板。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2006097067A Method for producing high strength alloyed hot dip galvanized steel sheet having excellent workability 有权
标题翻译：生产具有优异工作性能的高强度合金热镀锌钢板的方法
公开(公告)号：JP2006097067A
公开(公告)日：2006-04-13
申请号：JP2004283242
申请日：2004-09-29
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： TANAKA HIROSHI , YAMAMOTO TOMOO , MATSUMOTO TAKASHI , HOSOMI KAZUAKI
IPC分类号： C23C2/02 , C22C38/00 , C22C38/04 , C22C38/58 , C23C2/06 , C23C2/40 , C25D5/26
摘要： PROBLEM TO BE SOLVED: To obtain an alloyed hot dip galvanized steel sheet having high strength and excellent workability as well, at the time when a steel sheet comprising Si and Mn is subjected to alloyed hot dip galvanizing, by reducing an alloying heat treatment temperature after plating, so as to prevent deterioration in the mechanical properties of the original sheet.
SOLUTION: In the method for producing a plated steel sheet, an Fe-based plating layer is formed on a steel sheet comprising, by mass, 0.2 to 2.0% Si and 0.5 to 3.0% Mn, thereafter, the steel sheet is annealed under the heating conditions of temperature and time to control the value shown by the formula to ≥1.0, is cooled at the average rate of 2 to 200°C/s, is thereafter subjected to hot dip galvanizing, and is immediately, or after holding at a temperature of 430 to
摘要翻译：要解决的问题为了获得具有高强度和优异加工性的合金化热浸镀锌钢板，在包含Si和Mn的钢板经受合金化热浸镀锌时，通过减少合金化热电镀后的处理温度，以防止原纸的机械性能的劣化。解决方案：在电镀钢板的制造方法中，在含有0.2〜2.0％的Si和0.5〜3.0％的Mn的钢板上形成Fe系镀层，此后，钢板为在温度和时间的加热条件下退火，以将公式所示的值控制为≥1.0，以平均速率2〜200℃/ s冷却，然后进行热浸镀锌，并立即或之后在430〜500℃的温度下保持2秒钟〜2分钟，以≥5℃/秒的冷却速度冷却至≤250℃，以形成合金化的热浸镀锌层钢板：式（1）为[ä980-50×（[Si] + [Mn] / 4）} -t / 4] / T（其中，[Si]，[Mn] ），t为加热时间（T），T为加热温度（℃））。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2006089787A METHOD FOR PRODUCING Zn-Al-Mg ALLOY PLATED STEEL SHEET HAVING EXCELLENT HOT DIP METAL EMBRITTLEMENT CRACK RESISTANCE 有权
标题翻译：用于生产具有优异热镀锌金属突起耐腐蚀性的Zn-Al-Mg合金钢板的方法
公开(公告)号：JP2006089787A
公开(公告)日：2006-04-06
申请号：JP2004274511
申请日：2004-09-22
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： FUJIMOTO NOBUKAZU , MATSUMOTO TAKASHI
IPC分类号： C23C2/02 , C21D9/46 , C22C38/00 , C22C38/58 , C23C2/06
摘要： PROBLEM TO BE SOLVED: To provide a Zn-Al-Mg alloy plated steel sheet having improved hot dip metal embrittlement crack resistance by forming a film in which Cr, Cu, Ni or the like are coexistent together with Si on the surface of a steel sheet.
SOLUTION: A steel sheet having a composition comprising, by mass, 0.001 to 0.3% C, 0.01 to 1.5% Si, 0.05 to 2.0% Mn, ≤0.2% P, ≤0.03% S and 0.05 to 0.5% of one or more kinds selected from Cr, Cu and Ni, and, if required, comprising 0.0001 to 0.01% B is used as a plating original sheet. The plating original sheet is subjected to reduction annealing at 500 to 850°C, and is thereafter introduced into a hot dip Zn-Al-Mg alloy plating bath, so as to produce a Zn-Al-Mg alloy plated steel sheet having excellent hot dip metal embrittlement crack resistance.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过形成其中Cr，Cu，Ni等与表面上的Si共存的膜来提供具有改善的热浸金属脆化抗裂性的Zn-Al-Mg合金镀覆钢板的钢板。解决方案：一种组合物，其组成为：以质量计含有0.001〜0.3％的C，0.01〜1.5％的Si，0.05〜2.0％的Mn，≤0.2％的P，≤0.03％的S和0.05〜0.5％或更多种选自Cr，Cu和Ni，并且如果需要，使用包含0.0001至0.01％B的电镀作为电镀原始片。电镀原板在500〜850℃下进行还原退火，然后导入热浸镀Zn-Al-Mg合金电镀液中，制成镀锌钢板的热镀锌钢板浸金属脆化裂纹抗性。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2006037207A Stock for hot dip plated electric resistance welded tube having excellent bead cutting property in tube making 审中-公开
标题翻译：股份有限公司在管材制造中拥有卓越的珠子切割性能的热镀锌电阻焊管
公开(公告)号：JP2006037207A
公开(公告)日：2006-02-09
申请号：JP2004222923
申请日：2004-07-30
申请人： Nisshin Kokan Kk , Nisshin Steel Co Ltd , 日新製鋼株式会社 , 日新鋼管株式会社
发明人： MATSUMOTO TAKASHI , SAITO MINORU , YAMADA TOSHIRO
IPC分类号： C22C38/00 , B21B1/26 , B21B3/00 , C21D8/10 , C21D9/46 , C22C38/14 , C23C2/06
摘要： PROBLEM TO BE SOLVED: To provide a stock for an electric resistance welded tube which has a smooth weld zone surface after the cutting away of a weld bead, and is worked into a product shape having no occurrence of cracks by tube shrinking, tube extending or the like. SOLUTION: In the stock, a Ti-added extra low carbon steel sheet to which, by mass, 0.0003 to 0.0050% B is added is used as a base, and a hot dip galvanizing layer, an alloyed hot dip galvanizing layer, a hot dip zinc-aluminum alloy plating layer or a hot dip zinc-aluminum-magnesium alloy plating layer is provided. In the Ti-added extra low carbon steel sheet, the content of C is 0.001 to 0.025%, the content of N is ≤0.01%, and the content of Ti is controlled to the range of [(48/12×C+48/32×S+48/14N)+0.01] to 0.10%, by mass. The stock is produced through a hot rolling stage, a cold rolling stage, reduction heating and a hot dip plating stage, and, in the reduction heating prior to the hot dip plating, heating temperature is set to the range of 800 to 900°C, and cooling velocity is set to the range of 10 to 50°C/s. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种在焊道切割之后具有平滑焊接区表面的电阻焊管的原料，并且被加工成通过管收缩不发生裂纹的产品形状，管延伸等。＆lt; P＆gt;解决方案：在原料中，添加添加了0.0003〜0.0050％B的添加量的添加Ti的超低碳钢板作为基材，使用热浸镀锌层，合金化热浸镀锌层，提供热浸锌 - 铝合金镀层或热浸锌 - 铝 - 镁合金镀层。在添加Ti的超低碳钢板中，C的含量为0.001〜0.025％，N的含量≤0.01％，Ti的含量控制在[（48/12×C + 48） /32×S+48/14N)+0.01]〜0.10质量％。坯料通过热轧阶段，冷轧阶段，还原加热和热浸镀阶段生产，并且在热浸镀之前的还原加热中，加热温度设定在800-900℃的范围内，冷却速度设定在10〜50℃/ s的范围。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2005256018A Hot-dip aluminized material with excellent bead cutting property at tube making for resistance-welded tube of steel sheet 审中-公开
标题翻译：热镀铝合金材料，具有优异的焊丝切割性能，用于制造电阻焊管钢管
公开(公告)号：JP2005256018A
公开(公告)日：2005-09-22
申请号：JP2004065106
申请日：2004-03-09
申请人： Nisshin Kokan Kk , Nisshin Steel Co Ltd , 日新製鋼株式会社 , 日新鋼管株式会社
发明人： MATSUMOTO TAKASHI , HIGO YUICHI , YAMADA TOSHIRO
IPC分类号： C22C38/00 , C22C38/14
摘要： PROBLEM TO BE SOLVED: To provide a material for resistance-welded tube which is a steel sheet prepared by applying hot-dip aluminizing to a Ti-added extra low carbon steel sheet and has excellent bead cutting property at tube making while securing sufficient formability.
SOLUTION: Hot-dip aluminizing is applied to a steel sheet as a basis material which has a composition consisting of, by mass, 0.001 to 0.015% C, ≤1.0% Si, 0.1 to 2.0% Mn, ≤0.1% P, ≤0.01% S, 0.01 to 0.10% acid-soluble Al, ≤0.01% N, (48/12×C+48/32×S+48/14×N)+0.01 to 0.10% Ti, 0.0003 to 0.005% B and the balance essentially Fe and further containing, if necessary, one or more kinds among 0.01 to 0.1% Nb, 0.01 to 0.10% V and 0.01 to 0.10% Zr. By the addition of the prescribed amount of B, a weld bead can be moderately hardened and coarsening of a microstructure can be prevented, and as a result, cutting can be facilitated.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种电阻焊管材料，该材料是通过对添加Ti的超低碳钢板进行热浸镀铝而制备的钢板，并且在制造时具有优异的胎圈切割性能，同时固定足够的成形性。＆lt; P＆gt;解决方案：将热浸镀铝作为基质，以质量计为0.001〜0.015％C，≤1.0％Si，0.1〜2.0％Mn，≤0.1％P ，≤0.01％S，0.01〜0.10％酸溶Al，≤0.01％N，（48/12×C + 48/32×S + 48/14×N）+0.01〜0.10％Ti，0.0003〜0.005％ B和余量基本上为Fe，并且如果需要，在0.01〜0.1％的Nb，0.01〜0.10％的V和0.01〜0.10％的Zr中进一步含有1种以上。通过添加规定量的B，可以适度地硬化焊缝，并且可以防止微观结构的粗化，结果可以切割。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2008163372A High strength plated steel sheet with excellent magnetic shielding property for spot welding, and its manufacturing method 有权
标题翻译：用于点焊的高强度电磁屏蔽性能优良的钢板及其制造方法
公开(公告)号：JP2008163372A
公开(公告)日：2008-07-17
申请号：JP2006351808
申请日：2006-12-27
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： YOSHIOKA KAZUYA , HIRATA KENTARO , MATSUMOTO TAKASHI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/06
摘要： PROBLEM TO BE SOLVED: To provide a high strength plated steel sheet in which increase of magnetic permeability is combined with increase of strength in a base material part and a spot weld zone while obviating the necessity of addition of Si in large quantity and addition of precipitation strengthening elements such as Ti.
SOLUTION: A steel slab, having a chemical composition which consists of, by mass, 0.003 to 0.010% C, 0.5 to 1.0% Si, 1.0 to 2.0% Mn, 0.04 to 0.15% P, ≤0.04% Al, ≤0.004% N and the balance Fe with inevitable impurities and in which the respective contents of Si, Mn and P satisfy inequality (Si%)×45-(Mn%)×40+(P%)×150≤10, is subjected to hot rolling where coiling is done at 600 to 700°C, cold rolling, continuous annealing at 750 to 900°C and subsequent plating. By this method, the high strength plated steel sheet for spot welding, in which ferrite grain size is 10 to 80 μm and magnetic permeability μ
0.35 at a dc magnetic field of 0.35 Oe is made to ≥400 G/Oe, can be obtained.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种高耐磨性钢板，其中磁导率的增加与基材部分和点焊区域的强度增加相结合，同时消除了大量添加Si的必要性，添加沉淀强化元素如Ti。解决方案：一种钢板，其组成为：质量为0.003〜0.010％的Si，0.5〜1.0％的Si，1.0〜2.0％的Mn，0.04〜0.15％的P，≤0.04％的Al，≤ 0.004％N，余量为Fe与不可避免的杂质，其中Si，Mn和P的各自含量满足不等式（Si％）×45-（Mn％）×40 +（P％）×150≤10，在600〜700℃进行卷取的热轧，在750〜900℃的冷轧，连续退火和随后的镀覆。通过该方法，在0.35Oe的直流磁场下，将铁素体晶粒尺寸为10〜80μm，磁导率μ 0.35 的高强度电镀钢板制成≥400G / Oe，可以获得。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2007211321A Method for producing steel sheet for cpu socket frame or cpu fixing cover 审中-公开
标题翻译：用于生产CPU插框或CPU固定盖的钢板的方法
公开(公告)号：JP2007211321A
公开(公告)日：2007-08-23
申请号：JP2006034746
申请日：2006-02-13
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： KONDO TOSHIHIRO , MATSUMOTO TAKASHI , KODAMA SHINICHI
IPC分类号： C21D9/46 , B21B3/00 , C22C38/00 , C22C38/06 , C22C38/14
摘要： PROBLEM TO BE SOLVED: To obtain a cold rolled steel sheet suitable for a CPU (central processing unit) socket frame and a CPU fixing cover used when a CPU chip is fitted to a wiring board.
SOLUTION: Regarding this production method, the continuously cast slab of a steel comprising, by mass, 0.01 to 0.20% C, ≤0.5% Si, ≤1.5% Mn, ≤0.05% P, ≤0.01% S, 0.005 to 0.10% acid soluble Al and ≤0.007% N, and, if required, further comprising 0.01 to 0.15% Ti and/or 0.01 to 0.15mass% Nb is subjected to hot rolling, is pickled, and is thereafter subjected to cold rolling at a cold rolling ratio of 20 to 50%. Since the steel sheet has been subjected to working strengthening by the cold rolling, excellent characteristics of a 0.2% proof stress satisfying ≥600 N/mm
2 , bending workability satisfying the tip radius of ≤0.7 mm and sheet thickness precision satisfying ≤20 μm are imparted thereto.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：获得适用于CPU（中央处理单元）插座框架的冷轧钢板和将CPU芯片安装到接线板时使用的CPU固定盖。解决方案：关于该制造方法，将钢的连续铸造板坯，以质量计含有0.01〜0.20％的C，≤0.5％的Si，≤1.5％的Mn，≤0.05％的P，≤0.01％的S，0.005〜 0.10％的酸溶性Al和≤0.007％的N，并且如果需要，进一步包含0.01至0.15％的Ti和/或0.01至0.15质量％的Nb进行热轧，酸洗，然后在冷轧比为20〜50％。由于钢板已经通过冷轧进行加工强化，因此满足≥600N/ mm 2 的0.2％屈服应力的优异特性，满足尖端半径≤0.7mm的弯曲加工性和片材赋予满足≤20μm的厚度精度。版权所有（C）2007，JPO＆INPIT

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