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| No.9178410
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Information Name: | Supply the Changchun rectangular tube manufacturers, prices - 13,483,831,257 |
Published: | 2012-10-17 |
Validity: | 0 |
Specifications: | |
Quantity: | 100000.00 |
Price Description: | |
Detailed Product Description: | Manufacturers of rectangular pipe, rectangular steel the rectangular pipe prices, large caliber, thick-walled rectangular pipe, seamless rectangular tube, Q345B rectangular steel pipe, 16Mn rectangular tube manufacturers, Q235 rectangular tube steel structure with a rectangular steel pipe, large diameter thick-walled rectangular pipe low alloy rectangular tube replaced pull rectangular pipe, rectangular steel pipe manufacturer, square rectangular steel pipe suppliers moments pipe, rectangular pipe a call, that is, the side length ranging from steel pipes. Is made of the strip after the treatment process volume. Generally strip After unpacking, smooth, curl by the tube rolling into square tube welded to form a tube, and then cut to required lengths. Introduction to rectangular tube rectangular tubes the name suggests, it is a kind of rectangular tube, the substance of a variety of materials to form a rectangular tube body, media in what used be used in the place, most of the rectangular tube steel pipe for the majority, after unpacking, flat, curled, welded to form a tube, rectangular tube by tube rolling and then cut to required lengths. Generally 50 per pack rectangular steel pipe in the spot, mostly in large size 10 * 10 * 0.8-1.5 ~ ~ 500 * 500 * 10-25, the use of rectangular tube rectangular tube structure, decorative rectangular pipe, building rectangular tube, mechanical rectangular tube. Rectangular pipe product characteristics and uses, rectangular tube products rectangular tube is a hollow square cross-section lightweight thin-walled steel pipes, also known as steel cold-formed profiles. It is based on a square cross-sectional shape and size of steel Q235 hot rolled or cold-rolled strip or coil forming the base metal by cold bending and then made by high-frequency welding. Hot-rolled special thick-walled square tube in addition to the outside of a thick wall, the corner sizing and edge flatness reached even more than the level of resistance welding cold forming rectangular tubes. 2, rectangular tube uses rectangular tube uses architectural, mechanical manufacturing, iron and steel construction projects, shipbuilding, solar power bracket, steel structure engineering, electrical engineering, power plants, agricultural and chemical machinery, glass curtain wall, car chassis, airports, boiler construction, highway railings, housing construction, and so on. , Rectangular tube Category 1 classification rectangular tube of rectangular tube Production Production: hot-rolled seamless rectangular tube, cold drawn seamless rectangular tube, extruded seamless Quartermaster welded rectangular tube. Welded rectangular tube is divided into: (a) arc welding process points - rectangular pipe, ERW rectangular pipe (high-frequency, low-frequency), gas welding rectangular tube furnace welded rectangular tube (b) according to the weld points - Straight seam welded rectangular tube, spiral welded rectangular tube the, rectangular pipe material classification rectangular tube Material: carbon steel rectangular tube, low alloy rectangular tube. Carbon steel is divided into: Q195, Q215, Q235, SS400, 20 # steel, 45 # steel; low-alloy steel is divided into Q345, 16Mn, Q390, ST52-3. 3, the rectangular pipe production standard classification rectangular tube production standards: GB rectangular pipe, the Japanese standard rectangular tube, inch rectangular tube, the American standard rectangular tube the European standard rectangular tube, rectangular tube of non-standard. 4, the the rectangular pipe cross-section shape classification rectangular tube section shape classification: (1) a simple cross-section rectangular tube - square square tube, rectangular square tube (2) complex cross-section the rectangle tube - flower-shaped rectangular tube, the opening shaped rectangular tube, corrugated rectangular tube, shaped rectangular pipe, the rectangular tube surface treatment classification rectangular tube sub-surface treatment: hot dip galvanized rectangular tubes, electro-galvanized rectangular tube, oiled rectangular pipe, the pickling rectangular tube 6 rectangular tube uses rectangular tube uses classification - decorated with rectangular tube, machine tools rectangular pipes, mechanical industrial rectangular tube, chemical rectangular tube, steel rectangular pipe, shipbuilding rectangular tubes, automotive rectangular pipe, steel beams and columns with rectangular tube, special purpose a rectangular tube 7, the the rectangular tube wall thickness classification rectangular tube wall thickness classification - ultra-thick rectangular tube, the thick-walled rectangular tube and thin-walled rectangular tube rectangular tube performance plastic plastic refers to a metal material to produce plastic deformation under load, ( permanent deformation) without disrupting the ability of. Hardness Hardness is a measure of metal material hardness of the pointer. Currently measured production the hardness method most commonly used is the indentation hardness method, it is pressed into the surface of a metallic material to be tested under a certain load with a certain geometry of the pressure head in, according to the extent of being pressed into the measured hardness values. Commonly used method Brinell hardness (HB), Rockwell hardness (HRA, HRB, HRC) and the Vickers hardness (HV). Strength, ductility, hardness are metal fatigue earlier discussed the mechanical properties under static loading pointer. In fact, many of the machine parts are working in under cyclic loading, the part under such conditions will produce fatigue. The impact toughness of the load acting on the parts on a lot of speed known as impact load, metal ability to resist destruction under impact loading is called impact toughness. Intensity strength refers to the resistance to destruction (excess plastic deformation or fracture) the performance of the metal under the action of materials in the payload. Because the form of tension, compression, bending and shearing action of the load, so the strength is also divided into the tensile strength, compressive strength, bending strength, shear strength and the like. The various strength frequent contact, generally use more strength tensile strength as the most basic pointers. Rectangular tube specification and implementation of standards. In executable GB6728-2008 standard cold-formed hollow sections. 2. Executable JISG3466-88 Japanese general construction Rectangular pipe to adapt to a range of standards. 3. Implementation of the post-cold-formed steel standard: GB/T3094-2008 rectangular tube calculation formula square tube weight formula: 4 * thickness * (long side - wall thickness) * 7.85 rectangular tube weight formula: {(circumference ÷ 3.14) - wall thickness} * thickness * 0.02466 |
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Copyright © GuangDong ICP No. 10089450, Cangzhou City Yan Thai Steel Pipe Co., Ltd. All rights reserved.
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You are the 5746 visitor
Copyright © GuangDong ICP No. 10089450, Cangzhou City Yan Thai Steel Pipe Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility