Changsha Xiangjia Metal Materical Co., Ltd.

Seamless steel pipes   are manufactured by rolling steel ingots into round bars, then piercing them to create tube blanks (also known as rough tubes), which are further processed into seamless pipes through processes such as hot rolling, cold rolling, or cold drawing. The production of seamless steel pipes involves various production processes and equipment. Whether it is continuous rolling, cyclic rolling, mandrel rolling, or extrusion production processes, it is essential to heat the round bars or tube blanks to the required temperature using an induction heating furnace before feeding them into the rolling or extrusion machines to produce seamless steel pipes. Subsequent processes include straightening, cutting and marking the pipes, and bundling them for storage. The equipment for seamless steel pipe production typically includes a cutting saw, tube blank heating equipment, induction heating furnace, taper piercing machine, Accu-Roll mill, 8-stand three-roll micro tension redu...

Discovering the top-notch GB T 5312   ship-building pipe   for your marine needs here in   Xiangjiasteel . Our seamless steel pipes are specially designed for the manufacture of marine boilers, superheater systems, LPG transport, and bulk chemical ship pipes. With a maximum working temperature of 450 degrees, our ship-building steel pipes ensure durability and high performance. According to GB T 5312 standards, our carbon and carbon-manganese steel seamless pipes are classified into 5 grades: 320, 360, 410, 460, and 490. Each grade encompasses three levels: I, II, III. Rest assured, our ship-building pipes are crafted with precision, they are meeting the highest industry standards. Let's experienced the reliability and strength of GB T 5312 ship-building pipe together. Don't compromise when it comes to your marine engineering needs. You can believe that our seamless pipes to deliver excellent performance, ensuring the smooth operation of your vessels. Order your GB T 531...

Seamless pipes   are a type of pipeline material used for transporting fluids, gases, and solids. Due to their unique performance and advantages, they are widely used in various fields. Here are several application areas of seamless pipes: Petroleum and natural gas industry: Seamless pipes play a crucial role in petroleum and natural gas exploration, extraction, transportation, and processing. They are used as oil well pipes, oil pipelines, and gas pipelines, capable of withstanding high pressure and high temperature conditions, ensuring the safe and efficient transportation of fluids. Chemical industry: In the chemical industry, seamless pipes are used to transport various corrosive media such as acids, alkalis, salts, and chemicals. They have excellent corrosion resistance and high temperature performance meeting the demands of complex chemical processes. Power sector: Seamless pipes play a vital role in the fields of thermal power generation and nuclear energy. They are used to...

Pickling one of procedure during processing   seamless pipe   in factory, it is an indispensable part of most steel pipes, but after pickling seamless steel pipe, it is require water washing. Tips when washing seamless pipe: 1. It needs to be carried out in a flowing clear water tank to avoid pollution when wash the seamless pipe. And the seamless steel tube needs to be completely immersed in water. At this time, the sling should be loosened and lifted up and down three times or four times. 2. When the seamless pipe is washed with water, it is necessary to clean the water in the steel pipe to avoid corrosion and oxidation.  3. When the seamless pipe is washed with water, it should be noted that it cannot cross the pickling tank to avoid accidents, slipping or falling into the acid tank and being corroded by residual hydrochloric acid. 4. When the seamless pipe is washed with water, the iron salt content standard must be controlled, and it cannot exceed the standard, which...

Seamless steel pipes   have hollow sections and are widely used as pipes for conveying fluids, such as pipes for conveying oil, natural gas, gas, water and certain solid materials. The seamless pipe has a certain corrosion resistance, but in order to prolong the service life of the seamless pipe in some extreme environments, it is necessary to remove the oxide layer on the surface of the product. The main cleaning method is pickling. After cleaning, electrolytic cleaning is required again. 1. The seamless steel pipe must wear labor protection supplies before pickling. The on-site working environment should also be checked in detail, mainly to check whether the hoisting of the steel pipe is intact, and work can only be carried out after confirming that it is intact. 2. When pickling seamless steel pipes, the pickling method is mainly hydrochloric acid pickling. Usually, the content of hydrochloric acid is preferably 18% to 20%. 3. The staff also need to know the concentration and te...

Seamless steel pipe   is formed in one piece, it is pierced from round steel directly. Seamless pipe has a wide range of applications. Let's find out which field are seamless pipe used in. The application of seamless steel pipes is mainly in three fields: The construction field, which is used for underground pipeline transportation and groundwater extraction; the processing field, which is used for machining, bearing sleeves, etc.; the electrical field, including pipelines for gas transmission, fluid pipelines for hydropower generation, etc. The same feature of them is that the use of seamless pipes can avoid problems such as leakage and ensure the effect and safety during uses. Changsha Xiangjia Metal Materical Co., Ltd.  specializing in the production and sales of carbon steel pipes, alloy pipes, stainless steel pipes, etc., welcome to call us for consultation.

As a conveying pipe, steel pipe can be widely used to transport oil, gas, water, and other fluids. So steel pipe is known as the "blood vessel" of industry. Steel pipe is an important material in the military industry, which can be used to manufacture gun barrels, barrels, and other weapons. With the development of aviation, missile, atomic energy, and space technology, the demand for precision, thin wall, and high strength steel pipe is increasing rapidly. A steel pipe made of a single piece of metal without any welding cracks on the surface is called "seamless steel pipe". According to the different production modes, it can be divided into cold rolled pipe, hot rolled pipe, extrusion pipe, pipe jacking, cold drawn pipe, and other types. When purchasing  seamless steel pipes , I believe that everyone has a misunderstanding: expensive is good! But in many cases, we will spend a lot of money but never achieve the desired effect. Seamless steel pipe with excellent te...

  Seamless steel pipe  has always been a commonplace problem in the machinery manufacturing and construction industry.  The application field and market scope of seamless steel pipe are expanding, and the demand for seamless steel pipe keeps increasing. Therefore, many manufacturers of seamless steel pipes are gradually developing. The rapid development brings the small and medium-sized enterprise a powerful turning point, but it is precise that the emergence of the non-standard manufacturer makes the quality of seamless pipe in the market vary greatly and can not be guaranteed, thus causing a lot of suppliers to fail to choose a good manufacturer. When choosing seamless steel pipe manufacturers, many buyers hope to find a cost-effective one but do not consider the comprehensive factors. First, we should not take price as the only standard to measure the manufacturing strength of manufacturers. We need to carry out a comprehensive factory inspection including the factory'...

Currently China's   seamless steel pipe   standards: 1. Current seamless steel pipe standards: 47 items in total, it including: GB/T25 items, HB3 items, 19 items for special purposes; 2 basic items, 45 items. 2. Commonly used standard: ① GB/T2102-2018 Acceptance, packaging, marking and quality certificate of steel pipes. ② GB/T17395-2008 Size, shape, weight and allowable deviation of seamless steel pipe. ③ GB/T5310-2018 Seamless steel pipes for high pressure boilers. ④ GB/T9948-2018 Seamless steel pipes for petroleum cracking. ⑤ GB/T6479-2018 Seamless steel pipes for high-pressure fertilizer equipment. ⑥GB/T18248-2018 Seamless steel pipes for gas cylinders. Changsha Xiangjia Metal Materical Co., Ltd.  the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We specializes in manufacturing all kinds of steel pipe in various grades and sizes. Years of production experience and manufacturing facilities who have a capacity of 200,...

Seamless steel pipe   has a hollow section and they are widely used as a pipeline for transporting fluids, such as pipelines for transporting oil, natural gas, gas, water and some solid materials. Calculation formula for calculating the theoretical weight of common profiles: m=F×L×ρ m—quality Kg; F—cross-sectional area m2; L—length m; ρ—density*Kg/m3 Noted: F calculation method of cross-sectional area: 1. Square steel tube: F= a2 2. Steel pipe: F=3.1416×$(D-$)  D—diameter $—thickness 3. Steel plate, flat steel: F= a×$ a—width

  High-pressure seamless steel pipe   is a kind of seamless pipe. The manufacturing method is the same as seamless pipes, but there are strict requirements on the steel grades that used to produce steel pipes. According to the operating temperature, it can be divided into two types: ordinary boiler tubes and high-pressure boiler tubes. ①If the service temperature of high-pressure seamless steel pipes is below 450℃. Domestic pipes should be made of No. 10 and No. 20 carbon steel hot-rolled pipes or cold-drawn pipes. ②High-pressure seamless steel pipes are often used in high temperature. The pipes will be oxidized and corroded under the action of high-temperature flue gas and water vapor. The steel pipe is required to have high durable strength, high oxidation and corrosion resistance, and good organizational stability. Changsha Xiangjia Metal Materical Co., Ltd.  the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We speci...

Seamless pipe   is a long steel pipe with a hollow section and no joints on the periphery. 1. According to production methods, seamless steel pipes can be divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, and extruded pipes. 2. According to the shape, there are round pipes and special-shaped pipes. Special-shaped tubes include square tubes, rectangular tubes oval tubes, semicircular tubes, triangular tubes, hexagonal tubes, convex-shaped tubes, plum-shaped tubes, etc. 3. According to materials, it can be divided into ordinary carbon structure tube, low alloy structure tube, high-quality carbon structure tube, alloy structure tube, stainless tube, etc. 4. According to the purpose, there are boiler tubes, geological tubes, oil tubes, etc. Changsha Xiangjia Metal Materical Co., Ltd.  the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We specializes in manufacturing all kinds of steel pipe in various grades and ...

Domestic  seamless steel pipe  supplied according to chemical composition and mechanical properties, such as the chemical composition of No. 10, 15, 20, 25, 30, 35, 40, 45 and 50 steel, which should meet the requirements of GB/T699-88. Accordance to GB/T8162-87, seamless pipe specifications:  The outer diameter of the hot-rolled pipe is 32～630mm. The wall thickness is 2.5～75mm.  The outer diameter of cold rolled (cold drawn) pipe is 5～200mm. The wall thickness is 2.5-12mm. The weight calculation formula of seamless steel pipe is: m=F×L×ρ m—mass Kg; F—cross-sectional area m2/m; L—length m; ρ—density *Kg/m3 Note: F sectional area calculation method: 1. Square steel  F = a2 2. Steel pipe  F=3.1416×$(D-$)     D—diameter ＄—thickness 3. Steel plate and flat steel    F= a×$          a—width Changsha Xiangjia Metal Materical Co., Ltd.  the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers o...

Seamless steel pipe  for boiler pipe: GB3087-1999 Boiler tube (GB3087-1999 GB5310-1995) Standard: GB3087-1999 GB5310-1995 Application: Used in the manufacture of water walls, economizers, reheaters, superheaters and steam pipes for boilers pipe with low and medium pressure, high pressure and above.   High pressure seamless steel pipe for boiler pipe: GB5310-95 (ST45.8-Ⅲ type) Boiler tube (GB5310-1995) Standard: GB5310-1995 Application: Used in the manufacture of water walls, economizers, reheaters, superheaters and steam pipes of high pressure and above pressure boiler pipe.

Price List for Carbon Steel Seamless Steel Pipe ，API 5L/ASTM A106 Gr.B Note: Those Price are for  bare pipe , based on  EXW Price , not including  shippment charge . The mose important is those price are valid  in one week . If you have any question, plz donot hesitate to contact us:  lily@adtooo.com

Seamless steel pipe  is a long strip of steel with a hollow section and no welds around it. Mainly used to transport fluids, such as oil, natural gas, gas, water, and certain solid materials. Compared with solid steel such as round steel, seamless steel pipe is lighter with the same bending and torsional strength. It is an economical cross-section steel. It is widely used in the manufacture of structural parts and mechanical parts. Stainless seamless steel pipes are used to manufacture ring parts, which can improve the material Utilization rate, simplifying the manufacturing process, saving material costs and processing hours, such as rolling bearing rings, jack sleeves, etc., are currently widely used in steel pipe manufacturing. Seamless steel pipe can be divided into round pipes and special-shaped tubes according to the different cross-sectional area shapes. Since the circular area is the largest under the condition of equal perimeter, more fluid can be transported by t...

The hot expanding steel pipe is  hot expanded seamless pipes , which is relatively low density but the contraction of the strong steel pipe (seamless pipe) can be referred to as thermal expansion. A process of skew rolling or drawing method to expand the pipe diameter. Steel pipe thickening in a short period of time, can produce non-standard and special types of seamless tubes with low-cost and high production efficiency, the current international developments in the field of tube rolling. Hot expand pipe is by expanding the diameter of pipe to finish processes - thermal expansion process of the production of steel pipe. Hot expansion pipe are commonly referred to hot expanded seamless steel pipes. So far, the thermal expansion carbon steel pipe production technology is relatively mature, the level of equipment and methods of thermal processing also has made substantial progress. From billet to the basic technological principle is still tube rotary piercing or pressure...

1. Grinding of  seamless steel pipe  nozzles: Angle grinder should be used to polish the plastic coating at the nozzle after cutting. The purpose is to avoid melting or burning the plastic coating to damage the pipeline during flange welding. Using angle grinder to sand the plastic layer of the nozzle. 2. Plastic coating of seamless steel pipe: After grinding, use oxygen and C2H2 to heat the nozzle on the outside of the pipe. If the internal plastic layer part is melted, the technical worker will apply the prepared plastic powder to the nozzle evenly. It should be noted that it must be applied in every angle, and the flange must be painted above the waterline. This process should strictly control the heating temperature. If the temperature is too high, bubbles will be generated during the coating process. If the temperature is too low, the plastic powder will not melt completely during the coating process. Layer peeling phenomenon, and finally the seamless steel pipe part...

Galvanizing can not only beauty the surface of the  seamless steel pipe , but also protect pipe from rusting. The types of galvanizied for seamless steel pipes are hot-dip galvanized and electro-galvanized. Here we will introduce you electro-galvanized. Currently, electro-galvanizied can be classified into four types according to the classification of electroplating solution. 1. Cyanide Galvanized. But cyanide is highly toxic, it has severe damage to the environment. With the promotion of environmental protection concepts, there are many restrictions on the use of cyanide in electroplating zinc. Currently, people mainly use microcyanide electroplating solution instead. After electroplating with cyanide galvanized, the product especially for color plating, and the color remains good after passivation. 2. Zincate Galvanized, it is evolved from cyanide zinc plating. This process has strong corrosion resistance and is good for color galvanizing. With this process, the latt...

The fluid  seamless tube  has a hollow cross section, and is widely used as a pipeline for transporting fluids, such as a pipeline for transporting oil, natural gas, coal gas, water, and certain solid materials. Compared with solid steel such as round steel, steel pipe is lighter in weight when the flexural and torsional strength is the same, and is an economical cross-section steel. It is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile transmission shafts, and bicycles Frames and steel scaffolds used in construction are used to make ring parts made of steel pipes. Seamless pipes for special purposes include seamless pipes for boilers, chemical power, seamless pipes for geology and seamless pipes for petroleum. The characteristics of seamless tubes are as follows: The excellent corrosion resistance of stainless steel seamless pipes is due to the formation of an invisible oxide film on the surface of the steel,...