The crack mainly occurs at -mm from the edge of the alloy pipe. The shape is several parallel vertical cracks of different sizes. The regularity is that the thicker the specification and model of the alloy pipe is The wider the width, the more serious the disadvantages.b. The professional two-sided arc welding processing technology can complete the electric welding at a good position, which is not easy to have the disadvantages of staggered joint welding deviation and incomplete penetration, and it is very easy to manipulate the welding quality.Tapachura,The fourth is the welding process method to ensure the strict implementation of the special operation method of galvanized pipe. The welding process includes pre welding groove inspection, and post welding nondestructive testing if necessary. Control the welding level and the amount of welding materials at each crossing.I-beam: national standard * what is the wall thickness of I-beamChaman,I-beam can only be used for beam, while H-beam can be used for load-bearing column of structure. Frame line crack The small length of repair welding is mm; The raw material shall not exceed mm after grinding by welding edge.

Due to the relatively high and narrow section size of ordinary I-beam and light I-beam, the moment of inertia of the two main axes of the section is quite different, which makes it very limited in the scope of application. The use of I-beam shall be selected according to the requirements of design drawings.The product can withstand any range of operating temperature.What is the stainless steel passivation of alloy pipe?A complete range of products,Plan scheme : Martensitic chromium alloy pipe and chromium alloy pipe with Cr composition exceeding %, without high carbon steel and high chromium alloy pipe. The aqueous solution contains % sodium cyanide % ~ % (volume ratio),TapachuraHow much is a ton of galvanized pipe, the solution temperature is ~ ℃, and the solution time is min.Alloy pipes can be used for heating (cooling) projects.Classification introduction

Alloy pipe is a kind of seamless steel pipe. Alloy pipe is divided into structural seamless pipe and high-pressure heat-resistant alloy pipe. It is mainly different from the production standard and industry of alloy pipe. Annealing and tempering of alloy pipe changes its mechanical properties. Meet the required processing conditions. Its performance is higher than that of ordinary seamless steel pipe, its utilization value is higher, the chemical composition of alloy pipe contains more Cr, and its performance of high temperature resistance, low temperature resistance and corrosion resistance. Ordinary carbon seamless tubes do not contain alloy components or have few alloy components. Alloy tubes are widely used in petroleum, aerospace,TapachuraQuotation of high pressure alloy pipe, chemical industry, electric power, boiler and other industries because the mechanical properties of alloy tubes change and are easy to adjust.ranking,It is widely used in various fields of national economic construction, such as buildings bridges, power stations,TapachuraHow much is the I-beam of 28, oil drilling platforms, vehicles, subways, steel structure plants and large warehousesWire sleeve: it is also a general carbon steel welded steel pipe. It is used in concrete and various structural power distribution projects. The commonly used nominal diameter is from -mm. The wall of wire sleeve is thin, which is mostly used after coating or galvanizing, and cold bending test is required.X-ray or ultrasonic testing shall be carried out for repair welding of alloy pipe dead end welding of strip steel and circumferential seam. For the spiral welding of steel for the transportation of flammable general liquids, yibai%sx ray or ultrasonic testing shall be carried out. For the spiral welding of alloy pipes for the transportation of water, wastewater, gas, heating steam and other general liquids, X-ray or ultrasonic testing sampling inspection (%) shall be carried out.Tapachura, Cross rolling pass system. This pass system refers to that the two open legs of the I-beam pass are not on the same side of the waist at the same time, and the waist has an included angle with the horizontal axis.C - section steel is reliable and stable in stress, can be accurately positioned, and is resistant to impact and vibration Moreover, it has good versatility and combination, and has a variety of C-section steel and size selection to ensure its flexibilityFunction of I-beam: where is I-beam mainly used?