Yantai Qixia Q345E seamless square tube application process simple section tube-round tube, square tube, oval tube, angle tube, angle tube, diamond tube, angle tube, semi-circular circle, other complex section tube-ranging Corner tube, petal plum tube, double convex tube, double concave tube, melon seed tube, conical tube, corrugated tube, case tube, other which is good Yantai Qixia 2 31 317 stainless tube (317 does not See below for rust performance) is a molybdenum-containing stainless species. Quality assurance formula for quality assurance 16Mn seamless steel pipe [(outer diameter-wall thickness) * wall thickness] * 0.02466 = kg / m (weight per meter) integrity-based inspection of chemical composition of Huaihua imported boiler tubes in accordance with relevant standards stipulated in the contract get on. Comprehensive quality management annealing (GBK) tubes undergo normal and complete heat treatment during cold working, normal dimensional accuracy, normal tensile strength and elongation (greater than 20%). It is a commonly used state and has a wide range of applications. Yantai Qixia Q345E seamless square pipe application process stage (1904-1934) The total cost of 304 seamless steel pipe has no sand holes, no sand holes, no black spots, no cracks, and a flat weld bead. Bending, cutting, welding process performance advantages, the advantages of stable nickel content. Good cost
Yantai Qixia Q345E seamless square pipe application process 6 true and false identification At present, Yantai Qixia 20G seamless steel pipe, the international corrosion resistance of materials is divided into categories according to the annual corrosion rate, the category is completely corrosion resistance, and its corrosion rate Less than 0.1mm / year, high-quality stainless steel belongs to this kind of material; the first category is still corrosion-resistant, and its corrosion rate is 0.1-0 mm / year, which belongs to ordinary stainless; the first category is non-corrosion-resistant, and its corrosion rate is greater than 0mm per year. The analysis of the counterfeit stainless products found this time revealed that the corrosion rate was as high as 67mm / year, which was considered to be severely non-corrosive. In the progressive analysis of the product composition, it was found that the chromium content in this product, which represents an important indicator of stainless steel, is only 03% and 1%, which is far lower than the 5% requirement for stainless's low demand for chromium. Hot rolled (seamless steel pipe): round pipe billet → heating → perforation → roll diagonal rolling, continuous rolling or → stripping → sizing (or reduction) → cooling → billet pipe → straightening → hydraulic test (or flaw detection) → Mark → Warehouse. Cold drawn (rolled) seamless steel pipe: round pipe billet → heating → perforation → heading → annealing → pickling → oiling (copper plating) → multiple cold drawing (cold rolling) → billet pipe → heat treatment → straightening → Hydraulic test (detection) → mark → storage. Fatigue seamless steel pipe Seamless steel pipe for standard structure: GB / T8162-2008 Ground pipe for fluid transmission: GB / T8163-2008 Low and medium pressure boiler tube Boiler seamless steel tube: GB / T3087-2008 High pressure seamless steel tube for boiler : GB / T5310-2008 (ST4 8-Ⅲ type) Yantai Qixia calculation formula: (outer diameter-wall thickness) * wall thickness * 0.02491 = kg / m 1 201 stainless steel pipe-S20100 (AISI.ASTM) product line low pressure Welded pipe for fluid transportation (GB / T3092-199 is also called general welded pipe, commonly known as black pipe. It is a welded pipe used for conveying lower pressure fluids such as water, gas, air, oil and heating steam and other purposes. Pipe connection wall The thickness is divided into ordinary pipe and thick pipe; the form of the pipe end is divided into non-threaded pipe (light pipe) and threaded pipe. The specification of the pipe is expressed by the nominal diameter (mm). Indications, such as 11/2, etc. In addition to being directly used for conveying fluids, low-pressure fluid conveyance welded pipes are also widely used as original pipes for galvanized welded pipes for low-pressure fluid conveyance. When choosing, it is important to determine whether there are still Local factors affect the site environment. For example, stainless is used in Below the chimney of the factory, it is used near the air conditioning exhaust baffle or near the waste field. There will be unusual conditions. Wangwujiaqu hot rolled seamless steel pipe is usually delivered in the hot rolled state after heat treatment. After the quality inspection of the seam steel pipe, it must be carefully selected by the staff. After the quality inspection, the surface should be oiled, and then several cold drawing tests should be performed. The hot rolling should be pierced. If the perforation expansion is too large, it should be Straighten and straighten. After straightening, carry out flaw detection test from the equipment to the flaw detector. After straightening, label, sort the specifications, and put in storage. Yantai Qixia Q345E seamless square pipe application process ordinary carbon wire sleeve (GB3 0-8 is Industrial and civil buildings, installation equipment, and other electrical installation projects used to protect electrical wires. Promotion 3 Weight Formula 201 Stainless Management Theory Weight: [(outer diameter-wall thickness) * wall thickness] * 0.02491 = kg / m ( (Weight per meter) free answer
Yantai Qixia Q345E seamless square pipe application process stage (1961-1978) you need me professional 1 According to the good pipe can be divided into two categories: seamless steel pipe and seam pipe, seam pipe is referred to as straight seam tube. To do, make fine hot-rolled thick-walled seamless steel pipes, cold-rolled thick-walled seamless steel pipes, cold-drawn thick-walled seamless steel pipes, thick-walled seamless steel pipes, and stainless seamless steel pipes for pipe jacking structures (GB / T14975-200 It is a seamless steel pipe for general structure and mechanical structure. It is widely used in the hot-rolled (extrusion, expansion, etc.) made of stainless steel for corrosion-resistant pipes and structural parts and parts in chemical, petroleum, light textile, food, machinery and other industries. ) And cold drawn (rolled) seamless steel pipes. The period of maturity of floating mandrel and seamless steel pipe technology. C≤0.1 Mn ≤ 70, Si≤0.50, Yantai Qixia Q345B spiral pipe, P≤0.030, S≤0.02 Al≥0.0 Good new quotation Name: 316L stainless steel seamless pipe, 316 stainless steel seamless pipe, 304L stainless steel seamless pipe Related information: seamless steel pipe, as the name suggests, it is a kind of square tube type, many All kinds of materials can form seamless steel pipe bodies. It is used for, what to do, and where they are used. Yantai Qixia Q235B spiral pipe. Most of the seamless steel pipes are mostly tubes, and most of them are structural seamless steel pipes. Steel pipes, construction seamless steel pipes, etc. Welded pipe (GB / T3092-199 is also called general welded pipe, commonly known as black pipe. It is used to transport water, gas, air, oil, heating steam and other lower pressure fluids and other purposes. Welded pipe thickness It is an ordinary pipe and a thick pipe; the form of the connecting end is divided into a non-threaded pipe (light pipe) and a threaded pipe. The specifications of the pipe are expressed by the nominal diameter (mm), and the nominal diameter is an approximate value of the inner diameter. It is commonly used in inches. Such as 11/2, etc. In addition to being directly used for conveying fluids, the welded pipes for low-pressure fluid transportation are also widely used as the original pipes for galvanized welded pipes for low-pressure fluid transportation.