steel tube

    Producers of consumer products like the steel pipes use performance-based standards due to the safety decided by quality. Under this situation, we should make a list for the concern of the product before we manufacture it, for example, the production notice for the seamless steel pipe.     When the main target is people's safety, and the product is steel pipe, the committee on construction equipment, playing pressure, and facilities stands ready to consider any technology that may reduce the risk of leak injury on transportation. Thus, we should take notice for the surface treats for steel pipes like the Fusion bond Epoxy coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil coating as per customer’s requirement.     Of course, how could we forget the test for those steel pipes after the production. Like the Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Proper...

    There are lots of materials we can use for construction foundation, such as timber piles, concrete piles and steel piles. What’s the difference between them? And finally which one would be better for us? According to the ratio of using spiral welded pipe, steel products have their special advantages.     First, timber piles differ from concrete or steel piles as they are naturally made instead of man-made. This means they are cheaper than concrete or steel piles. Because of the     natural characteristics of timber, the density or unit weight of timber piles is variable and highly dependent on the species, specific gravity and water content of the timber itself. Under this situation, we cannot make sure the quality when they face with the hurricane which is its shortage. Of course, it is very easy of corrosion and rust which has not long life service.     What’s more, concrete piles are both similar and different to timber piles and to s...

    Definition:     Carbon steel: mainly refers to the mechanical properties depend on the carbon content of steel, and generally do not add a lot of alloying elements of steel, sometimes called plain carbon steel or carbon steel. Carbon steel, also known as carbon steel, carbon content WC less than 2% iron carbon alloy. Carbon steel in addition generally contains a small amount of silicon, manganese, sulfur, phosphorus can be divided according to the use of carbon steel carbon structural steel, carbon tool steel and free-cutting structural steel three carbon structural steel is divided into structural steel and machine structural steel, which can be divided into low carbon steel (WC ≤ 0.25%), medium carbon steel (WC 0.25% - 0.6% ) and high carbon steels (WC> 0.6%). According to phosphorus and sulfur content, carbon steels can be divided into ordinary carbon steels (phosphorus and sulfur are higher), high quality carbon steels (phosphorus and sulfur are lower) h...

　　You, human beings, my friends are here, so I steel pipes with various categories like seamless steel pipe, ERW steel pipe, spiral welded pipe and so on are here for you. This is me who have life once you accompany with me. 　　I guide water, oil, gas and other products across the wasteland and protect them from the damage of sunshine and sand. I break the truth of we are serving for human who are our friends to them, then deliver them to wherever they're going, like the master they like, the engineering project they need to go. 　　ERW steel pipe is a naughty boy and with his surface of Fusion bond Epoxy coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil coating with his friends as they think this is the symbol of them and this kind of surface would make them fashion and cool. 　　ERW steel pipe even said to the radio that If I was anything, I exist as steel pipe because you, my friends need me. 　　 http://www.xysteelpipe.com/info/Steel-pipe-exist-because-y...

　　With the boom of economy, there is no doubt that life standard is higher than old time. However, with the coming of various gorgeous buildings, mansion as well as huge factory. The need for high quality requirement for steel pipe like seamless steel pipe or high quality ERW steel pipe in boiler industry is also urgent too. 　　Playing a very important role in various types of huge factories of power and chemical industry, boiler has become larger in size and temperature than ever. Of course, with the advanced technology and the standard for buildings, the size, temperature and pressure taking for boiler has to be update in order to chase up the modern step. 　　Therefore, the steel pipes, whether seamless steel pipe for boiler or gas transportation, ERW steel pipe for water transportation and other steel pipes used in daily life must be a higher quality. As seamless steel pipe manufacturer, it means that we should follow the main trend in advanced technology producing steel pipes so ...

    Hydrostatic pressure test, widely used in daily, water pressure testing, small valves, pressure vessels, all kinds of metal and non-metallic pipe pressure and blasting test; a variety of oil tools hydraulic strength and sealing performance testing; pressure instrumentation on pressure testing and calibration; fire hose and fire extinguishers and other fire equipment pressure and burst test.     The main technical parameters     1. Applicable medium: water, hydraulic oil and most of the hydraulic medium (special media, please contact us).     2. Suitable temperature: -45 ℃ ~ 120 ℃.     3. Driving power: compressed air (0.7MPa below, 1Nm3 / min).     4. Pressure range: 0-700MPa, (commonly used pressure range 0-700MPa).     5. Pressure accuracy: ± 1% F.S.     6. Flow range: 0 ~ 40L / min.     7. Achieve stepless regulation of pressure.     8. All the system uses no weld...

    Surface defect of cold drawn tube inner wall     High precision cold drawn tube surface roughness Ra ≤ 0.8μm, diameter size accuracy can reach H9 ~ H10, only to ensure that after honing to H7 ~ H8 bore size and Ra ≤ 0.2μm of the internal surface roughness requirements. In addition to the honing machine equipment precision, the cold drawn tube surface quality is another key point, cold drawn tube internal surface defects by the domestic A factory measured data classification, there are three kinds of main honing pipe surface roughness.     1. Pitting     After rough drawing, the surface can be found by many pits-like defects, such defects will not seriously affect the smoothness of the cylinder bore, for the cylinder is a waste.     2. Scratch     Scratch defects are cold drawn, generally along the axis of a steel pipe along the direction of the scratches, there must be more than the depth of the scratches honing m...

　　Everywhere is snow not just only in wechat or qq. According to the weather forecast, lots of places are frozen weather. Under this situation, it is a bad news for the steel pipe like seamless steel pipe, ERW steel pipe and galvanized steel pipe used for transportation. 　　The hard freeze forced the closure of a building serving in some residences so that the resident would be difficult to get water from the tap. At the same time, the office in the heart of town or in the residence was among dozens dealing with frozen pipes to deal with the cold weather's damage for various steel pipes. As it turned out, water was streaming from a pipe beneath the ground and it had to be shut down due to the cold weather. 　　Thus, steel pipes would have special advantages compared with plastic or other pipes. This is because the steel pipes pressure taking is higher than other pipes. Of course, the temperature holding is also better than other pipes. Considering the whole situation, steel pipes ...

　　SMLS, short for seamless steel pipe, is a kind of round hollow section widely used for delivering fluids and protecting electrical or optical cables and wires. SMLS steel pipe means that there is no seam in the pipe. SMLS steel pipe is widely used for transporting oil, petroleum, natural gas, coal gas, water,and some other solid material. 　　Compared with round steel and other solid steels, seamless steel pipe is more lightweight. Seamless steel pipe for liquid transport is also an economical steel material used for manufacturing structural components and machine parts, such as oil drill pipe, transmission shaft of motor vehicle, bicycle frame and steel scaffolding. 　　Advantages 　　1. Seamless steel pipe for liquid transport can be used as boiler tube in working condition lower than 450℃. 　　2. Seamless steel pipe has high strength, good anti-corrosion property, and structure stability. 　　3. Seamless steel pipe meets the international standard per your requirement. 　　 http:/...

　　API 5CT N80 well casing pipe is a seamless or welding technology used to manufacture, with and proper good chemical properties. 　　Below are the basic API 5CT N80 well casing pipe chemical properties and production process. 　　Chemical Composition of API 5CT N80 well casing pipe: 　　C: 0.34-0.38; 　　Mn: 1.45-1.70; 　　P: ≤0.02; 　　S: ≤0.015; 　　Si: 0.20-0.35; 　　Cr: ≤0.15; 　　V: 0.11-0.16 　　Thickness: 5-20mm; 　　Outer diameter: 120-500mm 　　Technique: hot rolled 　　Surface treatment: galvanized 　　Application: API 5CT N80 well casing pipe are used to maintain the borehole stability, to prevent contamination of water sands, and to isolate water from producing formations. 　　 http://www.xysteelpipe.com/info/API-5CT-N80-Well-Casing-Pipe%C2%A0%C2%A0-769-1.htm

　　It is the fact that you're very important to our daily life, dear galvanized steel pipe. We know that life it isn't not like a fairy tale, we often try and fail. Finally, we bring you here in our daily life after year’s hard work. Although there are still lots of questions for you; we can handle it for customers. 　　Does galvanization really protect pipes? 　　The answer is "of course". Zinc in steel pipes serves as a sacrificial layer. Thinking about it, the zinc parts would be rust before the metal beneath it if they are exposure in the environment of humid. Thus, the zinc keeps the integrity of the pipe intact for much longer than regular pipes. 　　Does it cost much for galvanized steel pipe’s material? 　　How's the cost for those galvanized steel pipes? We know that cost would be an important factor for customers when we choose a product. Actually, prices are vary and they are depended on your galvanized pipe supplier and the scope of your project. For ex...

　　A brief introduction to the general structure, mechanical structure with seamless steel pipes. 　　Outer Diameter:21.3mm - 660mm 　　Wall Thickness: 　　Hot roll: 0.250" - 4.00" 　　Cold drawn:0.035" - 0.875" 　　Length:Random Length, Fixed Length, SRL, DRL 　　Standard and material: 　　ASTM A519 1010, 1020, 1025, 1035, 1045 　　ASTM A513 1010, 1020, 1025, 1035, 1040 　　JIS G 3441 SCM415TK SCM 430 TKSCM 440 TK 　　EN10305-1 E215E235E355 　　DIN2391 St35St45St52 　　Heat treatment: Annealed, Normalized, Stress relieved, Cold finished, Quenched and Tempered 　　Test: Chemical Component Analysis, Mechanical Properties and other inspection 　　 http://www.xysteelpipe.com/info/A-guide-to-structural-pipe-771-1.htm

　　SSAW steel pipe, nickname spiral submerged arc, is made by forming ube centerline hose reel molding angle (adjustable). However, do you really know me? Can you identify me with my family members of seamless steel pipe, ERW steel pipe and LSAW steel pipe? 　　My special trait is that with the same specification, we can be produced a variety of diameter sizes steel pipe. In addition, the raw materials to adapt to a wider range. With the balance production process, we SSAW steel pipe can avoid the main stress coming from the oil, gas or water when applied in the transportation work. 　　Of course, my bad behavior is that the poor geometry of the weld length compared to the long straight seam pipe. This may cause crack, slag or porosity. Then, who can own me with the saving money? Actually, class 3 and 4 grade oil and gas transportation can find me with the special design specification. 　　 http://www.xysteelpipe.com/info/Do-you-really-know-about-SSAW-772-1.htm

　　SSAW steel pipe, short for spiral sub-merged arc welded steel pipe, is a kind of welded steel pipe. LSAW steel pipe, short for longitudinal sub-merged arc welded steel pipe, is also a kind of welded steel pipe. Both pipes are of large diameter, and pipe length can be longer than other steel pipe. Today, we’ll talk about the advantages and disadvantages of SSAW and LSAW. 　　Outer diameter: 　　SSAW: 219.1mm-3048mm 　　LSAW: 219.1mm-1626mm 　　Wall thickness: 　　SSAW: 5-25.4mm 　　LSAW: 8-60MM 　　Raw material: 　　SSAW: Steel Coil 　　LSAW: Steel plate 　　Because of the different of raw material, thus the length of steel pipes for LSAW is shout, but SSAW steel pipe’s length can be dozens of times as the length for LSAW. 　　There are many differences between LSAW steel pipe and SSAW steel pipes. Differences are caused by raw material or other factor. Come and visit Xinyue to know more about LSAW steel pipe and SSAW steel pipes. 　　 http://www.xysteelpipe.com/info/SSAW-steel-pipe-V...

　　Are you starting a project in a potentially corrosive environment? Or have you already done a project in a corrosive environment? If your answer is "yes", there is no doubt that you would like to your steel pipe, like the galvanized steel pipe, with a long life span that will save your money over the long haul. 　　We all want to use products that will last as it would fail to create headaches and add cost for customers. For building projects, galvanized steel pipe would be one of the options for clients for the reasons: 　　Zinc layer in galvanized steel pipe would prevent rust for the main pipe. We all know that the galvanization process involves hot-dipping a steel. Thus, once the materials are in use, rusting will still occur, but the zinc layer will rust before the material underneath. 　　Different supplies made out of galvanized steel. With urbanization and globalization, because of high quality and efficient cost, galvanized steel is used in a wide variety of projec...

　　What is ERW Steel Pipe ? 　　A pipe formed by electric resistance welding only having one vertical seam is called ERW pipes. It can be available in varied diameters and wall thickness. The sizes of pipes ERW pipes can range from 21.3mm to 660mm and length can up to 18m. 　　How ERW Pipe is made? 　　Decoiling--- Flattening--- End Cropping--- Butt welding--- Superior Accumulator--- Flying Cut-off Device--- Edge Milling--- Board Exploration--- Forming-   Contact/Induct welding--- Burr scraping--- Ultrasonic Test--- Heat Treatment--- Air Colling--- Sizing--- Flying Saw--- Sampling--- Flattening Test--- Straightening--- Hydraulic Test--- Ultrasonic Test on welding seam, pipe body, pipe end--- End facing and Chamfering--- Visual Inspection--- Measuring, weighting,marking--- Painting 　　Application of ERW steel pipes: 　　These pipes are used in fencing, line pipes, tubing, casing, scaffolding, water and gas transportation, structural purpose, engineering purpose. There has been a tre...

　　Pipe thread defects are as follows: 　　1, Tear (cracked): Mainly tooth side, addendum (round thread) geometry (including roughness) is damaged. Early thread processing with a single-knife picks easily lead to tear, blunt tool, lubrication is not good and other reasons are also likely to cause tearing, the general was scaly, ubiquitous thread side; thread oil in impurities such as sand, Will also cause torn; gauges have tumor on the flanks, the rules can easily lead to pipe thread surface torn. 　　2, The knife marks (trembling): Tooth top, side of the tooth due to the amount of feed, the tool beating or blunt tool wear caused. 　　3, Wear marks: Tooth top grinding very smooth into a flat top, the surface of the tube defects such as cracks, pits, etc. after grinding (wall thickness allowed to grind 12.5%), processing thread caused. 　　4, Black buckle: Round buckle outside the thread LC is not allowed; partial buckle outside the thread LC allows 2 buckle, no more than 1/4 circumferen...

　　Qualities of ERW Steel Pipes: 　　Before going into market, ERW steel pipes are routed through all required tests including a hydraulic test, an ultrasonic weld inspection on pipe body, pipe end, weld seam, bevel check, micrometer check, straightness evaluation, and ring gouge to ensure its quality. The high performance ERW steel pipes possess better anti-corrosion features, deformable and tougher. 　　Based on the customer's requirement, ERW (electric resistance welded) steel pipes are available in various qualities, wall thicknesses, and diameters of the finished pipes. While manufacturing ERW steel pipes, only high-quality, continuous-cast, fully killed, control-rolled, fine-grain, low-carbon steel is used. High performance ERW steel pipes and tubes possess high strength corrosion resistance, high deformability, high strength and high toughness. 　　Before reaching the market place, ERW steel tubes and pipes are routed through all required tests including a hydraulic test, an ...

　　Tubing pup joint are divided into five types according to their appearance: 　　(A) Thickening without thickening short section - the same specifications at both ends, one end of the tubing short pipe connected to thickening tubing, the other end is not connected to the thickening of the tubing or special thread tubing; 　　(B) Thicker outer diameter tapered section - different specifications at both ends, one end of tubing short pipe connected to a large outer thick tubing, the other end connected to a small size tubing; 　　(C) Thicker outer thickening short section - the same specifications at both ends, one end of the tubing short pipe connected to the outer thick tubing, the other end connected to the same specifications thick tubing; 　　(D) The same diameter short section - the same specifications at both ends, one end of the tubing short joints without thickening tubing or special threaded tubing, the other end is not connected to thickening tubing or special threaded tubing;...

　　The ultrasonic probe can be realized electricity harmonies which can the mutual conversion of the Q and ultrasonic wave propagation in elastic media, the physical characteristic is the basis of the seamless steel pipe principle of the ultrasonic flaw detection. 　　Directional transmission of the ultrasonic beam propagation in Seamless encounter defects, and produces both a reflection of the wave generated wave attenuation. After the flaw detector of the signal processing, such as obtained using a reflection method flaw defect echo signals, such as penetration method flaw virtue through the degree of attenuation of the wave guide to the defect signal. Both can be a quantitative defect indication is given by the instrument. The use of the piezoelectric effect or the electromagnetic induction principle different types of ultrasonic wave can be excited within the tube. Therefore, the piezoelectric ultrasonic and electromagnetic ultrasound can be used to pipe ultrasonic inspection. But t...