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...