Changsha Xiangjia Metal Materical Co., Ltd.

Seamless steel pipes are essential raw materials widely used in construction, manufacturing, chemical engineering, petroleum, and other industries. They possess characteristics such as high strength, corrosion resistance, and high-temperature resistance, and can meet the usage requirements in various complex situations. This article will provide a detailed introduction to the application fields of seamless steel pipes. Seamless steel pipes can be divided into the following categories according to usage: Seamless steel pipes for structural use: Mainly used for the production of structural parts in buildings, bridges, vehicles, ships, etc. Seamless steel pipes for fluid transportation: Mainly used for the transportation of fluids such as petroleum, natural gas, water, and steam. Seamless steel pipes for high-pressure boilers: Mainly used for the production of high-temperature and high-pressure boilers. Seamless steel pipes for high-pressure gas cylinders: Mainly used for the production ...

When it comes to the choice of materials for piping systems,   seamless steel pipes   emerge as a superior option due to a number of inherent advantages. Understanding the benefits of these pipes is essential for industries that require reliable and durable piping solutions. This article delves into the key characteristics of seamless steel pipes, with a focus on their strength, corrosion resistance, and aesthetic appeal. Unmatched Strength and Pressure Resistance One of the greatest advantages of seamless steel pipes is their remarkable ability to resist pressure. Unlike welded pipes, seamless pipes have no seams, making them inherently stronger and more resilient under pressure. This characteristic simplifies pressure calculations, as there is no need to account for weld quality, which can often be flawed in welded pipes. Consequently, for applications where strength and reliability are non-negotiable, seamless steel pipes are the clear choice. Visual Appeal and Installation...

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...

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,...

The high quality of   seamless steel pipes   is mainly reflected in the specification accuracy and surface finish. Even after quenching and tempering, there will be no air oxide film on the surface of the pipe, nor will it be deformed by cold drawing. Sophisticated machining and manufacturing solutions are the advantages of seamless steel pipes.   Clean and maintain the surface of the seamless steel pipe to a certain extent to increase the service life of the seamless steel pipe. Many seamless steel pipes on the market will have great deviations in the model specification level. Even in different parts of seamless steel pipes, there are large differences in the inner diameter or wall thickness. Such a pipeline will undoubtedly cause a lot of problems throughout the application. But our seamless steel pipe is different, our seamless steel pipe has very strict regulations for each part of the pipeline.   Changsha Xiangjia Metal Materical Co., Ltd.   the Steel Pipe...

1.Pipe derusting, the surface of the pipes should be clean before paintting. Sandblasting to remove rust able to make pipe standard reach to  Sa2.5 level. 2. After removing the rust, then apply primer and the time interval between them should not exceed 8 hours. When applying the primer, the base surface should be dry. The primer shall be applied evenly and fully without clotting or bubbling. 3. After the surface of the primer is dry, apply the top coat and wrap the glass cloth. The time interval between the primer and the first top coat should not exceed 24 hours. Process of  seamless steel pipe  anti-corrosion is a relative complicated . It is necessary to strengthen the advantages of various technologies and anti-corrosion methods to avoid corrosion, so that seamless steel pipes will have better performance. 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 special...

Small diameter seamless steel pipe  have hollow cross-section and round shape without joints. Seamless pipes are widely used in different fields, such as automobile drive shafts, oil drill pipes and bicycle racks etc.. The material of small diameter seamless steel pipes: 10#, 20#, 35#, 45#, 16Mn, 27SiMn, 15CrMo, 12Cr1MoV, 10CrMo910, T91, P91, J55, K55, Q345A, Q345B, Q345C, Q345D, Cr5Mo2, etc. The hollow structure of the small-caliber seamless pipe have many advantages on some fields, which may reduce processing procedures, save processing time and improve production efficiency. 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 200,000 tons per annual will ensure the good quality and competitive duration of our produ...

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...

  Structural seamless steel pipes  are good for the processing and use of general structures and mechanical structures. The materials of structural seamless steel pipes are diverse. The materials are carbon steel 20, 45# steel, alloy steel Q345, 20Cr, 40Cr , 20CrMo, 30-35CrMo, 42CrMo, etc. The fluid seamless steel pipes is used to transport fluids. The domestic pipes are mainly made of 10#, 20# carbon steel hot-rolled pipes or cold-drawn pipes. The difference between fluid seamless pipes and structural seamless pipes is that fluid seamless pipes need to be subjected to hydraulic tests one by one, or ultrasonic, eddy current, and magnetic flux leakage testing. In the standard selection of pressure pipeline steel pipes, fluid seamless steel pipes are more suitable. 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 vario...

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.

  2 steps to deal with grease, oil, lubricating oil and other pollution on the surface of   seamless pipes : 1.       Wipe clean with a soft cloth. 2.       Clean with neutral detergent or ammonia solution or special detergent.   The stainless steel surface has rainbow patterns, which can be washed off with warm water or neutral detergent when washing. 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 200,000 tons per annual will ensure the good quality and competitive duration of our products.

Due to the house decoration and improper protection, the residual rust in the water pipes left dotted rust spots on the   seamless pipes , we can: 1.       Scrub with toothpaste. 2.       Rinse with cold water and dry with cotton cloth.    Dust and dirt on the surface can be washed with soap, weak detergent or warm water. 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 200,000 tons per annual will ensure the good quality and competitive duration of our products.

Use a low-concentration vinegar solution or decontamination powder to remove the spots in   seamless pipes , and finally rinse it off with clean water.   OR   If it is caused by the lumpy rust spots caused by staining with strong acid and alkali materials and not washing in time, or washing not clean: 1.        Rinse immediately with water. 2.       Use ammonia solution or neutral carbonated soda aqueous solution vinegar, stainless steel treatment agent to wash steel water, etc. 3.       Wash with neutral detergent or warm water. 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 200,000 tons per annual will ensure the good qua...

  3 steps to solve the water tank discoloration or rust spots on   seamless pipes   caused by heavy metal water: 1.       Use stainless steel brightener (to remove surface stains and rust) to dilute 4 times. 2.       Repeatedly scrub with a towel until the rust on the surface. 3.       Rinse with hot water again, and after drying, spray anti-rust water to keep the surface smooth and clean. 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 200,000 tons per annual will ensure the good quality and competitive duration of our products.

First of all, we must understand what is pickling: the method of using acid solution to remove oxide scale and rust on the surface of steel is called pickling. Acids for pickling include sulfuric acid, hydrochloric acid, phosphoric acid and mixed acids.  　　   The pickling process is to remove the surface oxide scale, and then go through lubrication treatment (carbon steel-phosphorous saponification, stainless steel-butter lime, copper and aluminum pipe-oiling), using the old technology-copper plating), and then drawing and deep processing. If the  seamless steel pipe  is not pickled, there may be oxides and oil stains on the surface, and the nuclear energy of the phosphating solution cannot remove them, and the quality of phosphating will be reduced. Moreover, in the manufacturing process of seamless steel pipe, after many processes, if you are not careful, it will leave scars on the surface of seamless steel pipe, which will reduce the corrosion resistance of parts ...

After the  seamless steel pipe  is finished, it is sent to the inspection department for product quality inspection, which is an important measure to ensure the quality of the seamless steel pipe from the factory. The inspection standards and content are stipulated by national standards and some standards or technical conditions.  　   Seamless steel pipe inspection can be spot check and all. Sampling inspection is generally to determine the mechanical properties, internal organization and chemical composition of seamless steel pipes. In addition to sampling inspections in a batch of seamless steel pipes, seamless steel pipes for some important uses are sometimes subject to all inspections. In addition, hot-rolled seamless steel pipes are subject to process tests such as flattening, bending, crimping, and flaring, as well as hydraulic tests according to standard requirements.     Changsha Xiangjia Metal Materical Co., Ltd.   the Steel Pipe Division of A...

  Seamless steel pipe  pipe connection: After the plastic repair is completed, the pipe and the pipe fittings are connected and installed. During the connection process, rubber pads are added between the flanges, and the bolts are tightened to the sealed state. 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 200,000 tons per annual will ensure the good quality and competitive duration of our products.

  Seamless steel pipe  cutting: According to the actual length of the pipeline, the pipe should be cut with a metal saw or a toothless saw. When water welding is used in the cutting process, the raw materials must be protected. When cutting, fire-resistant and heat-resistant materials should be used as baffles at the two ends of the fracture to catch the sparks and hot molten iron that fall during cutting to protect the raw materials. The original plastic layer. 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 200,000 tons per annual will ensure the good quality and competitive duration of our products.

  Seamless steel pipe  plastic coating treatment: After polishing, use oxygen and C2H2 to heat the pipe mouth on the outside of the pipe until the internal plastic layer is melted, and then the skilled worker will evenly apply the prepared plastic powder to the pipe mouth. Note that it must be applied in place, and the flange shall be painted above the water stop line. In this process, the heating temperature should be strictly controlled. If the temperature is too high, bubbles will be generated during the plastic coating process. If the temperature is too low, the plastic powder will not melt completely during the plastic coating process. The above conditions will produce plastic after the pipeline is put into use. The phenomenon of layer shedding will eventually corrode and damage the seamless steel pipe part of the pipeline. Changsha Xiangjia Metal Materical Co., Ltd.  the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in Chi...

  Seamless steel pipe   mouth grinding: After cutting, the plastic layer of the pipe mouth should be polished with an angle grinder. The purpose is to avoid melting or burning of the plastic layer during flange welding and destroying the pipeline. Use an angle grinder to polish the plastic layer of the nozzle.   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 200,000 tons per annual will ensure the good quality and competitive duration of our products.