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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.

BEIJING, Jan. 07 (Xinhua) -- The Ministry of Commerce (MOC) said on Friday that it will take the necessary steps to protect the legitimate rights of Chinese companies following anti-dumping measures taken by the European Union.

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.

Chinese name: seamless steel pipe English name :Seamless steel tube​,seamless tube. seamless pipe,seamless stee pipe Function to transport fluid :Features no seams on the surface Standing resource material :10 #, 20 #, 35 #, 45 #, 16Mn​ Category: Round and Profiled Rolling Technology

DMH United Steel Industry Co.,Ltd will show you the current seamless pipe standard in china​: 1. the current seamless pipe standard: there are 47 items: 19 GB, 25 HB, 3 special purposes; 45 items on the basis of 2 items.

NDT testing means without prejudice or affect the detected object performance, not hurt at being provided to detect objects within the organization, the use of material internal structural abnormalities or defects heat, sound, light, electricity, magnetism and other reactions caused by changes to physical or chemical methods as a means of using modern technology and equipment, equipment, the specimen surface and the interior of the structure, properties, and defect type state, nature, number, shape, position, size, distribution and change inspection and test methods . Non-destructive testing is an effective tool of industrial development is essential, to a certain extent reflects the level of industrial development of a country, the importance of non-destructive testing has been recognized, the main ray inspection (RT), ultrasonic testing (UT), magnetic particle testing (MT) and liquid penetrant testing (PT) four. There are other NDT methods eddy current testing (ECT), acoustic emission testing (AE), thermal imaging / infrared (TIR), leak testing (LT), the AC field measurement techniques (ACFMT), magnetic flux leakage testing (MFL), far-field test detection (RFT), ultrasonic time of flight diffraction method (TOFD) and the like.

Pipeline bear the effects of the pipeline transmission medium pressure and temperature, but also suffer from a variety of delivery through the heart of the impact of natural and human factors that may occur in the course of leaking or breaking all sorts of accidents. Not only due to leakage of pipeline accidents affect transport caused economic losses, but also pollute the environment. To ensure the safe operation of the pipeline and generate pipeline accident prevention should be the design, construction and operation of three aspects, including design and reasonable choice of pipe is very important. As for the pipe, the strength, toughness and weldability are three basic quality standards. It should also consider the environmental and transport medium for pipe corrosion, corrosion-resistant steel choice.