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- home > Supply > Shelf 2205 duplex stainless steel seamless pipe duplex stainless steel plate specifications complete calibration agent
Shelf 2205 duplex stainless steel seamless pipe duplex stainless steel plate specifications complete calibration agent
Information Name: | Shelf 2205 duplex stainless steel seamless pipe duplex stainless steel plate specifications complete calibration agent |
Published: | 2013-04-18 |
Validity: | 365 |
Specifications: | Complete |
Quantity: | 1000000.00 |
Price Description: | |
Detailed Product Description: | Manufacturing: manufacturing methods by different production methods can be divided into hot-rolled pipes, cold rolled tubes, cold drawn tube, extruded tubes. 1.1, hot-rolled seamless pipe is generally automatic pipe mill production. Solid tube inspection and removal of surface defects, cut into desired length, and then sent to the furnace heating, punch a hole in the perforated tube end to end surface-centering. In the hole while constantly rotating and forward rolls and the role of the head tube gradually formed within the cavity, said capillary. And then sent to the automatic rolling machine to rolling. Finally, both the whole, the whole wall thickness, sizing The sizing mill, to achieve the required specifications. The use of continuous production of hot-rolled seamless steel pipe mill is a more advanced method. 1.2 If you want to get smaller and better-quality seamless cold-rolled, drawn or a combination of methods must be used. Cold-rolled normally on a two-roll mill, steel becomes the section round hole slot and does not move tapered head circular hole formed in the rolling. Drawing is usually 0.5 to 100T single chain or double chain drawing machine. Extrusion method is about 1.3-heating tube closed extrusion cylinder, perforated stick together with the extruded rod movement, extrusion extrusion from the small hole in the mold. This method can produce a smaller diameter steel pipe. 2, chemical composition test 2.1, according to chemical composition and mechanical properties of the supply of domestic seamless pipe, 10,15,20,25,30,35,40,45 and 50, such as the chemical composition of the steel shall conform to GB/T699-88 requirements. Seamless import of Standards, Metrology and Inspection under the contract. The 09MnV, 16Mn, 15MnV steel chemical composition shall conform to the provisions of GB1591-79. 2.2, specific analysis method with reference to the relevant part of GB223-84 steel and alloy chemical analysis method ". 2.3 Analysis of the deviation with reference to GB222-84 "steel chemical analysis of samples and finished chemical composition allowable deviation. 3, physical performance test 3.1, by agency performance supply domestic seamless pipe, carbon steel A steel manufacturing GB/T700-88 (but must ensure that the sulfur content of no more than 0.050% and phosphorus content of no more than 0.045 %), its mechanical properties shall comply with the values ??specified in the table GB8162-87. 3.2 pressure test supply the domestic seamless pipe must ensure that the hydrostatic test specified in the standard. 3.3, imports of seamless physical performance test standard specified in the contract. 2, use 2.1, seamless pipe is so widely used. General purpose seamless up to ordinary carbon steel, low alloy steel or alloy steel rolling production, mainly used for transporting fluids or structural parts. 2.2 divided into three categories according to different purposes supply: a supply of chemical composition and mechanical properties; b supplied by the mechanical properties; c by pressure test supply. By a B-class supply steel pipe to withstand the pressure of the liquid, also the pressure test. 2.3, special-purpose seamless boiler seamless pipe, seamless pipe and petroleum geological seamless and other. 3, type 3.1, seamless steel pipe according to the different production methods can be divided into hot-rolled tubes, cold rolled tubes, cold drawn tubes, squeeze tubes. 3.2, shape classification round tube, shaped tube of the points. In addition to the square tube and rectangular tube shaped tube, oval tube, semi-circular tube, triangle tube, hexagonal tube, convex-shaped tube, plum-shaped tube. 3.3, according to the different materials, divided into ordinary carbon structural pipe, low alloy structural pipe, high-quality carbon structural pipe, alloy pipe, stainless steel tube. 3.4 points of special purpose, boiler tubes, geological tube, oil tube. |
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Copyright © GuangDong ICP No. 10089450, Arrowhead tart Yi Fei defeated South STAINLESS STEEL (ii) have limit the Company Hu All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
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You are the 3967 visitor
Copyright © GuangDong ICP No. 10089450, Arrowhead tart Yi Fei defeated South STAINLESS STEEL (ii) have limit the Company Hu 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