Wuyang Iron the Lianzhong Iron and Steel International Trading Co., Ltd. adhere to the "quality first, quality service, integrity-based, customer first" purpose, year-round sales of Wuhan Iron and Steel, Anshan Iron and Steel Company, Chongqing Iron & Steel, Baosteel and other various material specifications, extra wide special pressure container 
 Wuyang Iron the Lianzhong Iron and Steel International Trading Co., Ltd. is China's special wide, Thick steel plate production and research base - a direct marketing unit of Wuyang Iron and Steel Co., Ltd., one of the long-term distribution of Wuyang Iron and Steel production: S & P board: Q235A/Q235B/Q235C, boiler board: 20g/16Mng/SA288GrC/12Cr1MoVg, container board: 20R / 16MnR/16MnDR/09MnNiDR/15CrMoR/14Cr1MoR/13MnNiMoNbR container board: 12MnNiVR/15MoVR / / SA516Cr70/A387CrllCL1, high-strength plate :: WH60A/WH70/Q390/Q460C the / Q420/Q460C/15MnV, low-alloy plate :: Q345A / Q345B/Q345C / Q345D / Q345E / S355JR carbon structural plate: 20 # / 35 # / 45 #, ship: D36/NVD32/ABS/A/AH36 / EH36, wear-resistant steel: NM360/NM400, mold board: P20/P603/P675 alloy plate: 15CrMo/20CrMo/20Cr/40Cr/35CrMo/50Mn2v/40Mn2/20MnSi, pipeline steel: L245B/X46/K60-2 and other quality steel. 
 The company "quality first, quality service, integrity-based, customer first" purpose, and also engaged in a variety of materials of Wuhan Iron and Steel, Anshan Iron and Steel Company, Chongqing Iron & Steel, Baosteel and other extra wide special thick steel plate. Available specifications: thickness of 8-650mm, width of 1.5-4.02m, length of 3-27m, a single maximum weight of 35 tons, our company has set rolling the futures according to user requirements, for many years a vast inventory of the spot of a variety of materials (including authentic plate and a short foot board) in accordance with the requirements of cutting material law and shaped pieces of finished or semi-delivery, and arrange transportation. Invite new and old customers and we hold the hands of common development and create a win-win. 
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 High-rise steel characteristics: 
 Complicated by force of high-rise building steel with high safety and reliability, long life, and be able to resist the destruction of the seismic intensity and other characteristics, which determines the high-rise building structure with steel plate requirements with certain special properties, mainly the following points: (1) be able to withstand certain seismic force of destruction, to be able to shock and seismic. To this end, the steel plate is not only to have sufficient tensile strength and yield strength, but also to have a low yield ratio. Low yield strength material has good cold deformation and the plastic deformation work, absorb more earthquake can improve the seismic capacity of buildings. (2) to have good weldability, so do not need to preheat before welding without heat treatment after welding, welding in order to facilitate the site, thereby reducing the labor intensity and improve labor efficiency. (3) has a high plasticity and toughness, so that the plate has good mechanical properties. (4) has a smaller yield strength ranges. Yield and yield strength of matching values ??may be related to the design requirements of different large range of intensity changes between the various parts of the building can easily lead to local damage, reduce the earthquake resistance of buildings. Japanese standard specified yield strength fluctuation range of not more than 120MPA. (5) within the range of beam and column connections welded connections, when the node constraints, and to withstand the tensile force along the thickness direction, the requirements of the steel must have a certain level of resistance to lamellar tearing ability. 
 Gao Jian the classification of the board 
 Grades of high-rise board is divided into yield point 235MPA 345MPA, 390MPA, 420MPA and 460MPA five intensity levels, the intensity level is divided into Z and non-Z-direction steel, Z to the steel, Z15, Z25, Z35 three levels and different impact test requirements of sub-grade quality and grade, the grades are good weldability. Recommended standards and national standards in the building structure in accordance with the Ministry of Metallurgical Industry standard steel plates, the variety of high-rise board have: Q235GJB/C/D, and Q345GJB/C/D, implementation of national standards for GB/T19879-2005 the building structure with steel. " The built board with the technological progress and development of high-rise building construction in China gradually developed. GB/T221 iron and steel, said "and engineering structures, representation, consider the characteristics of the building structural steel, and to highlight the high-rise buildings and grades in the order on behalf of high carbon steel and high strength low alloy steel Performance in Building Structures and yield point of the Chinese phonetic alphabet, the yield point value of the steel plate, the level of quality symbol. Steel plate thickness direction, plus the thickness direction of the level of performance, such as in the quality of the rating symbols Q345GJCZ25, where Q, G, J, respectively, yield point, high-rise building of the first Chinese phonetic alphabet; 345 for the yield point values, units of the MPA; Z25 C quality grade, which corresponds to the impact test temperature of 0 ℃ level of performance for the thickness direction;