Livable cities generally have two pipeline systems that supply water pipes and sewage sewer system, also known as the third set of piping systems in the pipeline system, is a water supply system, sewage together, after purification treatment, continue to apply as a living miscellaneous water supply system. United States, Japan, India, Russia have established a municipal wastewater reuse system.

The welded pipe is called the welded pipe for short, and the commonly used steel or steel strip is welded by the curled forming of the unit and the mold. The production process of welded steel pipe is simple, the production efficiency is high, the specifications are many, the equipment is less, but the general strength is lower than that of the seamless steel pipe. Since 1930s, with the rapid development of high-quality strip rolling production and progress of welding and testing technology, and constantly improve the weld quality, varieties and specifications of welded steel pipe is increasing, and in more and more fields especially in the heat pipe, who spare decorative tube, tube for low-pressure fluid etc. instead of the seamless steel tube. The production process of the straight welded pipe is simple, the production efficiency is high, the cost is low, and the development is fast. The strength of the spiral welded pipe is generally higher than that of the longitudinal welded pipe. The welded pipe with larger diameter can be produced with a narrow billet, and the welded pipes with different diameters can also be produced with the same width blank. But compared with the same length, the length of the weld increases by 30~100%, and the production speed is low.

According to the manufacturing process of steel pipe, seamless steel pipe can be divided into (SML), as the main oil gathering pipe and the small caliber high pressure natural gas pipeline, the number for the long oil pipeline is very few, most of the pipeline is the use of high-frequency welded pipes (ERW), spiral submerged arc welding pipe (SSAW) and LSAW (LSAW) three. The following table for several technological characteristics of the steel pipe and the quality of performance comparison: high-frequency welded pipes (ERW) according to the different welding modes are divided into induction welding and contact welding in two forms, the hot-rolled steel coil as raw material, after pre bending, continuous molding, welding, heat treatment, sizing, straightening, cutting and other processes. Compared with the spiral welded seam with short, high dimensional accuracy, uniform thickness, good surface quality, high pressure, but the drawback is the production of small diameter thin-walled tube only, weld is easy to produce gray spot and lack of fusion, groove corrosion defects.

ERW is the first letter of resistance welding Electric resistance welding abbreviation ERW pipe and submerged arc welding pipe welding methods are significantly different, the use of unfilled metal pressure welding, the weld is not filled with other components, by high-frequency current The skin effect and the proximity effect, so that the instant plate edge heated to the welding temperature, squeezed by the extrusion roller forging the formation of the weld.

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Steel pipe manufacturing process according to different, can be divided into (SML), as the main oil gathering pipe and the small caliber high pressure natural gas pipeline, the number for the long oil pipeline is very few, most of the pipeline is the use of high-frequency straight seam (ERW), spiral submerged arc (SSAW), submerged arc (LSAW) three.

Seamless pipe are extensively applied for the nuclear device, gas, petrochemical, ship building and boiler industries. Below we will introduce the wall thickness tolerance of seamless steel pipe.

As an important part of seamless steel pipe, steel pipe plays an important role in the development of national economy. The general trend of development of the steel industry in the world is: welded steel pipe production growth faster than the growth rate of seamless steel pipe; welded steel pipe production is far greater than the proportion of seamless steel pipe; for seamless pipe market in various areas; hot dip galvanized pipe in welding steel pipe welded steel pipe type, ERW is dominant in the production but, in the use of field pipelines, oil and gas pipelines in city gas pipeline within the longitudinal submerged arc welded pipe and spiral submerged arc welded pipe for the market.

As one of the biggest SAE1527 Seamless steel pipe supplier in China, we are qualified to supply you SAE1527 seamless steel tubes/steel pipes. This SAE1527 applies to the mechanical structure and general engineering structure for steel tubes. Tube/Pipe is mostly used in the annealed or hardened condition. However, it can also be heat treated, quenched and tempered. We also can arrange inspection from the third party like SGS,BV,DNV,PMI and so on, the goods we supplied will be of high quality and with required standard. We have been export steel for many years , if you have any question about SAE1527 pipe , please inform me ,thanks . EMAIL: info@united-steel.com

Ordinary steel pipes, such as tap water pipes, are usually welded by plate after bending. You can find a weld on it. The diameter of the steel is generally spiral. The seamless steel pipe is usually formed by pressing the molten steel through the annular slit and then drawing through the drawing process so that there is no weld. It is often used in high pressure equipment in performance, especially in pressure bearing capacity, which is much higher than that of ordinary steel pipes.

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SAE1030 seamless steel pipe

SAE5130 seamless steel tubes/pipes is one of the ASTM grade, mainly applied to cold rolled Seamless precision steel tubes/steel pipes. SAE 5130 Seamless teel pipe must be compatible with production methods of the outside surface and inner surface. Henan Bebon can supply SAE 5130 Steel Pipe/Tubes/Seamless Pipes.We exported this material 800 tons monthly.We are professional steel pipe manufacturer/mill/factory /supplier/exporter/producer. Regarding the dimension of the tubes, we can supply the common sizes and or produce according to customers’ requirements.We have established steady business relations with customers from all over the world..If you need any Steel Pipe/Tubes/Seamless Pipes, please contact us by sending mail, calling, leaving message on our website. We will supply you the goods at the competitive/ lowest price of SAE5130 seamless steel tubes. We will be your best choice and your best supplier in China.

Galvanized steel pipe is the surface with hot-dip galvanized or electro-galvanized layer. Galvanized steel can increase corrosion resistance and prolong life. Galvanized steel pipe is widely used, except for water, gas, oil, generally low-pressure fluid line pipe, also used oil heater oil industry in particular, marine oil wells pipes, pipelines, chemical coking equipment, condensing coolers, washing coal distillate oil exchange used tubes, as well as the bridge piles, mine tunnel support frame with a pipe.

SSAW steel pipe is the steel pipe with spiral seam that using strip coil as raw material, extrusion forming under normal temperature, and welding by automatic Double wire double-sided submerged arc welding process. Classification of SSAW steel pipe includes:

Low carbon steel pipe is plastic material. The stress-strain curve in the tensile process is divided into four stages: Elastic stage, yield stage, strengthening stage, local deformation stage. In the local deformation stage there are obvious yield and necking phenomenon. At the beginning of the elastic phase, fully comply with Hooke's law along the straight line, after the proportion of speed limit to accelerate, but no obvious yield stage.

Steel Pipeline pickling methods can be divided into groove type pickling and circulating acid, the cycle can be divided into online circulation pickling and pickling line the outer loop.

ERW pipe's application includes three aspects, first, for low pressure fluid transmission, such as water pipelines, agriculture & irrigation (water mains, sewerage systems, industrial water lines,; ant piping, deep tube-wells & casing); second, for machinery manufacturing, such as engineering purpose, fencing, scaffolding, line pipes etc .; third, for Gas pipe lines (pipe lines for natural gas), LPG and other non-toxic gas.

1. Chemical composition analysis: chemical analysis, instrumental analysis (infrared C-S instrument, direct reading spectrometer, zcP, etc.). ① infrared C-S instrument: analysis of ferroalloy, steelmaking raw materials, steel in the C, S elements. Direct Reading Spectrometer: C, Si, Mn, P, S, Cr, Mo, Ni, Cn, Al, W, V, Ti, B, Nb, As, Sn, Sb, Pb,

① hot-rolled seamless steel pipe main production process (△ main inspection process): Tube preparation and inspection △ → Tube heating → Perforation → Tube rolling → Steel tube reheating → Setting (minus) diameter → Heat treatment △ → Finishing tube straightening → Finishing → Inspection △ (Non-destructive, physical and chemical, bench inspection) → Storage ② cold-rolled (pull) seamless steel pipe main production processes: Blank preparation → pickling lubrication → cold rolling (pulling) → heat treatment → straightening → finishing → inspection

Seamless steel tube is very versatile. The general purpose seamless steel pipe is made of common carbon structural steel, low alloy structural steel or alloy structural steel with the most output, mainly used as the pipe or structural part for transporting fluid. .2, according to the use of different sub-three types of supply: a, according to the chemical composition and mechanical properties of supply; b, according to the mechanical properties of supply; c, according to hydrostatic test supply. According to a, b class supply of steel, as used to withstand liquid pressure, but also to carry out hydrostatic test. 3, a special purpose seamless tube Boiler with a seamless tube, chemical power, geological seamless steel pipe and oil with a variety of seamless tubes.