Nippon Steel Corporation

Nippon Steel Sumitomo Metal Corporation

Nihon Nohyaku Co., Ltd.

Other

Akihiro Miyasaka

Manabu Takahashi

Hiroyuki Ogawa

Masafumi Azuma

Nobuhiro Fujita

Yasuhide Morimoto

Naoki Yoshinaga

Masao Kurosaki

Natsuko Sugiura

Kenji Kato

Akiyuki Suwa

Ikki Yonemura

Ryosuke Tanaka

Takehide Senuma

Shunpei Fujie

Shunji Hiwatashi

Koji Hanya

Ryoichi Kanno

Tetsuo Ishitsuka

Nobuyoshi Uno

Satoshi Araki

Kozo Denpo

Masaaki Obata

Noriyuki Suzuki

Shinichi Suzuki

Kiyokazu Ishizuka

Hiroshi Kanai

Kazuhiko Honda

Toshiki Nonaka

Ikuo Kikuchi

Kazumi Nishimura

Yusuke Sano

Yasushi Suzuki

Naoto Shimizu

Hiroyo Haga

Tsutomu Tawa

Mitsuhiro Nishimura

Masaaki Sugiyama

Koichi Takeda

Takashi Motoyoshi

Mizuo Sakakibara

Yoichiro Mori

Michihisa Ito

Chikako Kouda

Hiroyuki Homma

Saburo Kitaguchi

Ikuro Yamaoka

Hiroshi Morimoto

Takeshi Terasawa

In crop production in the fields of agriculture, horticulture and the like, the damage caused by insect pests etc. is still immense, and insect pests resistant to existing insecticides have emerged. Under such circumstances, the development of novel agricultural and horticultural insecticides is desired. The present invention provides an agricultural and horticultural insecticide comprising a 4H-pyrrolopyridine compound represented by the general formula (1): {wherein Rrepresents a halogen atom, Rand Reach represent a haloalkyl group, Q represents Q-A, Q-B or Q-C, X represents a nitrogen atom, Rand Reach represent a hydrogen atom, Rand Reach represent a halogen atom, a haloalkyl group or a substituted phenyl group, and m represents 2} or a salt thereof as an active ingredient; and a method for using the insecticide.

4H-pyrrolopyridine compound or salt thereof, agricultural and horticultural insecticide comprising the compound or the salt, and method for using the insecticide

In crop production in the fields of agriculture, horticulture and the like, the damage caused by insect pests etc. is still immense, and insect pests resistant to existing insecticides have emerged. The present invention has been made in view of such circumstances, and an object of the present invention is to develop and provide a novel agricultural and horticultural insecticide. The present invention provides a condensed heterocyclic compound represented by the general formula (1):  {wherein Q represents a ring group represented by any of Q-1, Q-2, and Q-3, Rand Reach represent a hydrogen atom, Rand Reach represent a hydrogen atom, a halogen atom or a (C-C) haloalkyl group, and m represents 2}, or a salt thereof.

Condensed heterocyclic compound or salt thereof, agricultural and horticultural insecticide comprising the compound or the salt, and method for using the insecticide

Exemplary embodiments of the present invention can provide a hot dip galvannealed steel sheet which has excellent corrosion resistance, workability, coatability and appearance. The exemplary galvannealed sheet can include an ultra-low carbon steel sheet having a plating layer which includes about 8 to 13% Fe, about 0.05 to 1.0% Ni, about 0.15 to 1.5% Al, and a balance of Zn and unavoidable impurities. An exemplary method for producing a hot dip galvannealed steel sheet is also provided which can include cleaning an annealed ultra-low carbon steel sheet, preplating it with Ni, rapidly heating the sheet in a nonoxidizing or reducing atmosphere, plating the sheet in a galvanization bath containing Al, wiping it, then rapidly reheating it and either cooling the sheet without any soaking time or soaking and holding it for less than 15 seconds and then cooling it.

Hot dip galvannealed steel sheet and method for producing the same

Provided is a galvanized steel sheet having a tensile strength of 770 MPa or more including a steel sheet portion, and a plated layer formed on the surface of the steel sheet portion, in which the plated layer is a galvanized plated layer or an galvannealed plated layer, the steel sheet portion has a soft layer that directly adjoins the interface with the plated layer and an inside layer that is other than the soft layer, the thickness D of soft layer is 0.001% to 5% of thickness t of the steel sheet portion, and, when the hardness of the soft layer measured by nano-indentation method is indicated by H1, and the representative hardness of the steel sheet portion measured by the nano-indentation method is indicated by Ha in cross section that goes along the thickness direction of the steel sheet portion, H1 is 5% to 75% of Ha.

High-strength galvanized steel sheet and method of manufacturing the same

In an embodiment of a steel sheet having high Young's modulus, the steel can include in terms of mass %, e.g., C: 0.0005 to 0.30%, Si: 2.3% or less, Mn: 2.7 to 5.0%, P: 0.15% or less, 0.015% or less, Mo: 0.15 to 1.5%, B: 0.0006 to 0.01%, and Al: 0.15% or less, with the remainder being Fe and unavoidable impurities. One or both of {110}&#x3c;223&#x3e; pole density and {110}&#x3c;111&#x3e; pole density in the &#x215b; sheet thickness layer can be 10 or more, and a Young's modulus in a rolling direction can be more than 230 GPa. Other embodiments can include, e.g., Mn: 0.1 to 5.0%, N: 0.01% or less, and one or more of Mo: 0.005 to 1.5%, Nb: 0.005 to 0.20%, Ti: at least 48/14&#xd7;N (mass %) and 0.2% or less, and B: 0.0001 to 0.01%, at a total content of 0.015 to 1.91 mass %.

Steel sheet having high young's modulus, hot-dip galvanized steel sheet using the same, alloyed hot-dip galvanized steel sheet, steel pipe having high young's modulus, and methods for manufacturing the same

The present invention provides: a high-strength high-ductility hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having high fatigue resistance and corrosion resistance; a high-strength hot-dip galvanized steel sheet excellent in ductility, which improves non-plating defects and plating adhesion after severe deformation, and a method of producing the same; a high-strength and high-ductility hot-dip galvanized steel sheet having high fatigue resistance and corrosion resistance; a high-strength hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having superior appearance and workability, which suppresses the generation of non-plating defects, and a method of producing the same; and a high-strength hot-dip galvannealed steel sheet and a high-strength hot-dip galvanized steel sheet, which suppress non-plating defects and surface defects and have both corrosion resistance, in particular corrosion resistance in an environment containing chlorine ion, and high ductility, and a method of producing the same.

High-strength hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having fatigue resistance, corrosion resistance, ductility and plating adhesion, after severe deformation, and a method of producing the same

One aspect of the steel sheet having high Young's modulus includes in terms of mass %, C: 0.0005 to 0.30%, Si: 2.5% or less, Mn: 2.7 to 5.0%, P: 0.15% or less, S: 0.015% or less, Mo: 0.15 to 1.5%, B: 0.0006 to 0.01%, and Al: 0.15% or less, with the remainder being Fe and unavoidable impurities, wherein one or both of {110}&#x3c;223&#x3e; pole density and {110}&#x3c;111&#x3e; pole density in the &#x215b; sheet thickness layer is 10 or more, and a Young's modulus in a rolling direction is more than 230 GPa. Another aspect of the steel sheet having high Young's modulus includes, in terms of mass %, C: 0.0005 to 0.30%, Si: 2.5% or less, Mn: 0.1 to 5.0%, P: 0.15% or less, S: 0.015% or less, Al: 0.15% or less, N: 0.01% or less, and further comprises one or two or more of Mo: 0.005 to 1.5%, Nb: 0.005 to 0.20%, Ti: at least 48/14&#xd7;N (mass %) and 0.2% or less, and B: 0.0001 to 0.01%, at a total content of 0.015 to 1.91 mass %, with the remainder being Fe and unavoidable impurities, wherein the {110}&#x3c;223&#x3e; pole density and/or the {110}&#x3c;111&#x3e; pole density in the &#x215b; sheet thickness layer is 10 or more, and a Young's modulus in a rolling direction is more than 230 GPa.

Steel sheet having high young'S modulus, hot-dip galvanized steel sheet using the same, alloyed hot-dip galvanized steel sheet, steel pipe having high young'S modulus and methods for manufacturing the same

High-strength hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having fatigue resistance corrosion resistance ductility and plating adhesion after servere deformation and a method of producing the same

A soluble lubricating surface-treated stainless steel sheet with excellent shapability for fuel tanks, comprising a substrate having on both surfaces or one surface thereof a soluble lubricating resin film. Preferably, the soluble lubricating resin film mainly comprises (A) an alkali-soluble polyurethane resin composition containing a carboxyl group or a sulfonic acid group within the molecule and having a glass transition point of 100&deg; C. or more as a dry film and (B) a lubricating function-imparting agent in an amount of from 1 to 30% by mass based on the polyurethane composition.

Soluble lubricating surface-treated stainless steel sheet with excellent shapability for fuel tank and method for manufacturing fuel tank

To provide a steel sheet excellent in painting bake hardenability and anti aging property at room temperature: containing, in mass, 0.0001 to 0.20% of C, 2.0% or less of Si, 3.0% or less of Mn, 0.15% or less of P, 0.015% or less of S, and, in addition, 010% or less of Al and 0.001 to 0.10% of N so as to satisfy the expression 0.52Al/N<5 and, further, one or more of 2.5% or less of Cr, 1.0% or less of Mo and 0.1% or less of V so as to satisfy the expression (Cr&plus;3.5MO&plus;39V) &gE;0.1, with the balance consisting of Fe and unavoidable impurities; having the value of BH170, evaluated after applying a 2% tensile deformation and then a heat treatment at 170&deg; C. for 20 min., being 45 MPa or more, and any of the value of BH160, evaluated after applying a 2% tensile deformation and then a heat treatment at 160&deg; C. for 10 min., and the value of BH150, evaluated after applying a 2% tensile deformation and then a heat treatment at 150&deg; C. for 10 min., being 35 MPa or more; and having the yield point elongation at a tensile test after applying a heat treatment at 100&deg; C. for 1 h. being 0.6% or less.

Cold-rolled steel sheet or hot-rolled steel sheet excellent in painting bake hardenability and anti aging property at room temperature, and method of producing the same

Surface treated steel sheet for fuel containers having excellent corrosion resistance, formability and weldability is provided. A steel sheet containing 0.0005-0.0040% of C, 0.005-0.020% of P, 0.0005-0.0040% of N, and 0.0005-0.0030% of B has on at least one surface a first coating layer constituted as a Zn coating layer of a coating weight of 5-80g/m.sup.2 and a second coating layer on the first coating layer constituted as a Ni coating layer of a coating weight of 0.5-10g/m.sup.2. The Zn coating layer is composed of Zn, Zn--Fe alloy or Zn--Ni alloy. Alternatively, one surface is formed with the first coating layer and the second coating layer and the other surface is formed with a Zn coating layer.

Surface-treated steel sheet for fuel containers having excellent

Production method for steel material and steel pipe having excellent

A steel pipe having excellent corrosion resistance in an environment containing wet carbon dioxide and a small amount of hydrogen sulfide and having also excellent weldability is produced at a low production cost and with high productivity. The production method comprises heating to a temperature of 1,050.degree. to 1,300.degree. C. a slab containing, in terms of wt %, 0.01 to less than 1.2% of Si, 0.02 to 3.0% of Mn, 7.5 to 14.0% of Cr and 0.005 to 0.5% of Al, reduced C, N, P and S contents, at least one of Cu, Ni, Co, Mo and W, a balance of Fe and unavoidable impurities, and having an MC value of at least 0, finishing hot rolling within an austenite monophase temperature range, coiling the steel sheet as a hot coil having a sheet thickness of 3.0 to 25.4 mm, cooling the coil at a cooling rate of at least 0.01.degree. C./sec to at least 500.degree. C. to convert the steel sheet to a steel substantially consisting of martensite, reheating the steel to a temperature of 550.degree. C. to not more than an A.sub.c1 transformation point, holding it for at least 15 minutes, cooling the steel web to a normal temperature, cutting it into a predetermined width, and welding both ends of the steel by electric resistance welding while the steel coil is continuously shaped into a cylindrical shape.

Production method of steel pipe excellent in corrosion resistance and

The present invention relates to a steel having excellent corrosion resistance and workability and more particularly to a steel having excellent corrosion resistance and workability in an exhaust system of internal combustion engines in, for example, internal combustion engines in automobiles and ships. A steel having excellent corrosion resistance and a steel having excellent corrosion resistance and workability, characterized by comprising Si: not less than 0.01 to less than 1.2%, Mn: 0.1 to 1.5%, Cr: 2.5 to 9.9%, and Al: more than 3.0 to 8.0%, and, reduced to, C: not more than 0.02%, P: not more than 0.03%, S: not more than 0.01%, and N: not more than 0.02%, and further comprising 0.01 to 0.5% in total of Nb, V, Ti, Zr, Ta, and Hf so as to meet a particular conditional formula, or further comprising at least one member selected from Cu, Mo, Sb, Ni, W, rare earth elements, and Ca, with the balance consisting of Fe and unavoidable impurities.

Steel having excellent corrosion resistance and steel having excellent

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Futtsu, Japan

Akihiro Miyasaka