Changsha Xiangjia Metal Materical Co., Ltd.

High-frequency straight seam electric-resistance welded (ERW)   steel pipes are a versatile and reliable solution for a wide range of industrial applications. Their unique manufacturing process, superior weld quality, and cost-effectiveness make them a preferred choice for industries such as oil and gas, water supply, construction, and automotive. ERW pipes are widely used across multiple industries due to their strength, precision, and cost-effectiveness. Some of the key applications include: Oil and Gas Industry: ERW pipes are commonly used for transporting oil, natural gas, and other fluids. Their high strength and corrosion resistance make them ideal for both onshore and offshore pipelines. Water Supply and Irrigation: The smooth interior surface of ERW pipes ensures efficient fluid flow, making them suitable for water supply systems, irrigation, and drainage projects. Structural Applications: ERW pipes are used in construction for scaffolding, structural frameworks, and suppor...

Two widely recognized types of pipes in the industry are   Submerged Arc Welded (SAW) pipes   and   Electric Resistance Welded (ERW) pipes . Although both serve essential roles in various applications, their manufacturing processes and properties diverge significantly. This article provides a comprehensive comparison between ERW pipes and SAW pipes, focusing on key aspects such as welding speed, weld quality, and applications. Welding Speed: ERW welding is a high-speed process, whereas SAW welding is slower and more controlled. Weld Quality: The instantaneous nature of high-frequency welding makes it more challenging to ensure consistent weld quality compared to the slower and more controlled SAW process. Applications: ERW pipes are typically used for medium to low-pressure applications, such as water and gas transportation, while SAW pipes are preferred for high-pressure and large-diameter applications, such as long-distance pipelines. In summary, both ERW pipes and SAW ...

Electric resistance welded (ERW) pipes   are a type of steel pipe that is manufactured through the process of welding steel coils longitudinally. ERW pipes are commonly used in a variety of applications due to their strength, durability, and cost-effectiveness. Common Applications of ERW Pipes in various industries: Construction industry: ERW pipes are commonly used for water supply and drainage systems, gas pipelines, and structural support columns. ERW pipes are popular due to their affordability and strength, making them ideal for use in construction projects. Oil and gas industry: ERW pipes are widely used in the oil and gas industry to transport oil and gas from drilling sites to refineries. They are used for both onshore and offshore applications and are popular due to their resistance to corrosion and durability. ERW pipes are also used for oil and gas pipelines, drilling casings, and refineries. Automotive industry: ERW pipes are used in the manufacturing of automobiles, bi...

ERW steel pipe   is manufactured using hot-rolled coil after forming machine. Through the use of high-frequency current skin effect and proximity effects, the tube edge is heated and melted, and then squeezed under pressure welding to achieve production. Why choose our ERW pipes? - Versatile Use: Our ERW pipes are suitable for various engineering purposes, such as fencing, scaffolding, and line pipes. - Wide Range: Available in various qualities, wall thicknesses, and diameters of the finished pipes. - Cost-Effective: ERW pipes are more affordable to manufacture than seamless alternatives without compromising quality. - Durability: Both seamless and ERW options are equally robust, reliable, and long-lasting. - Customizable: At Xiangjia Steel, our ERW pipes can be conveniently cut to size, meeting your specific dimensions. - Versatile Shapes: We also offer square ERW steel box options, proving that ERW tubes aren't restricted to circular shapes. With our ERW steel pipes, you can tru...

  1.      Cleaning of   ERW steel pipe   The steel surface is cleaned with solvent and emulsion to remove oil, grease, dust, lubricant and similar organic matter, but it cannot remove oxide scale, rust on steel surface, flux, etc., and can only be used as anti-corrosion production   auxiliary means.   2.      If the steel surface is firmly attached to the iron oxide scale, the rust removal effect is not ideal and cannot meet the requirements of the anti-corrosion construction for the depth of the anchoring particles.  ERW steel pipe rust removal tools mainly use wire brushes and other tools to grind the steel surface, manual rust removal can reach SA2 level, power tool rust removal can reach SA3 level, can remove loose or raised oxide scale, rust, welding slag Wait.   3.      The pickling of ERW steel pipe is generally treated by chemical and electrolytic methods, which can be used as a re-tre...

  1.      Cleaning Use solvent and emulsion to clean the surface of   ERW steel pipe   to remove oil, grease, dust, lubricant and similar organic substances, but it cannot remove rust, oxide scale, welding flux, etc. on the surface of ERW steel pipe, so it is only used in defense operations as an aid.   2.      Pickling Generally, two methods of chemical and electrolytic pickling are used for pickling, and only chemical pickling is used for pipeline anticorrosion, which can remove oxide scale, rust, and old coating. Although chemical cleaning can make the surface achieve a certain degree of cleanliness and roughness, its anchor pattern is shallow and it is easy to cause pollution to the surrounding environment.   3.      Tool rust removal Mainly use tools such as wire brushes to grind the surface of ERW steel pipe, which can remove loose oxide scale, rust, welding slag, etc. The rust removal of hand too...

The advantage of this processing technology of   ERW (ERW STEEL PIPE)   is that there is a heat treatment process after welding, which eliminates the residual stress in the weld and heat-affected zone, refines the crystal grains, and has a small heat-affected zone of the weld and fast heating speed, which can greatly improve the welding speed and Welding seam quality, and can be used as blanks without pickling, shot blasting and trimming strip steel, while welding alloy steel, high alloy steel and non-ferrous metal pipes, greatly reducing the unit power consumption, with a set of welding equipment can produce Kind of ERW.  ​ Therefore, the ERW unit needs to fully utilize and expand its own advantages in order to improve product quality and develop new products.   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 pip...

ERW steel pipe   is straight seam electric resistance welded pipe, used to transport oil, natural gas and other vapor-liquid objects, and can meet various requirements of high and low pressure. The biggest difference between ERW steel pipe and seamless steel pipe is that ERW has a seam. With the development of production technology, ERW steel pipes have become seamless, which can be divided into geometric seamless and physical seamless. Geometric seamless is to remove internal and external burrs of ERW steel pipe. Due to the continuous improvement and perfection of the structure and tool of the internal burr removal system, the internal burr can be controlled at -0.2mm ~ O.5mm. Physical seamless means that there is a difference between the metallographic structure inside the weld and the base metal, which leads to the decline of the mechanical properties of the weld area, and should take measures to make it uniform and consistent.

Induction welding is to put one or more turns of induction coil outside the   welded steel pipe . The effect of multi-turn is better than single-turn, but it is more difficult to manufacture and install multi-turn induction coil. If the distance between the induction coil and the steel pipe surface is small, the efficiency is higher, but it is easy to cause electric discharge between the induction coil and the pipe.  Generally, it is advisable to keep the induction coil 5-8 mm away from the surface of the steel pipe. When using induction welding, since the induction coil is not in contact with the steel plate, there is no wear, and the induction current is relatively stable, which ensures the stability during welding. The surface quality of the steel pipe during welding is good, and the weld seam is flat. For precision pipes, induction welding is basically used.   Changsha Xiangjia Metal Materical Co., Ltd.   the Steel Pipe Division of ADTO GROUP, is one of the leadi...

The advantage of this processing technology of  ERW  ( Electric Resistance Welding)  is that there is a heat treatment process after welding, which eliminates the residual stress in the weld and heat-affected zone, refines the crystal grains, and has a small heat-affected zone of the weld and fast heating speed, which can greatly improve the welding speed and Welding seam quality, and can be used as blanks without pickling, shot blasting and trimming strip steel, while welding alloy steel, high alloy steel and non-ferrous metal pipes, greatly reducing the unit power consumption, with a set of welding equipment can produce Kind of ERW. Therefore, the ERW unit needs to fully utilize and expand its own advantages in order to improve product quality and develop new products.     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 ...

Generally speaking, the formulation of   ERW ( Electric Resistance Welding )   must comply with the safe operation regulations. The operator must not touch the mold during the operation of the unit, and pay attention to the direction of the outlet pipe to avoid improper operation affecting their health and safety.  　　 In addition, the operator of the welded pipe unit should pay attention to check whether the lubrication points of the unit are in place before operating the ERW, otherwise, pay attention to adding some lubricating oil to ensure the unit can operate and work normally.  　 　 During the use of ERW, pay attention to using some high-temperature-resistant synthetic composite aluminum-based grease, so as to avoid damage to the welded pipe unit. 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...

  ERW  has the characteristics of high production efficiency, low cost, material saving and easy automation.  The production process is: slitting-uncoiling-strip leveling-head and tail shear-strip butt welding-loop storage-forming-welding-removing burrs-sizing-flaw detection-flying cutting-initial inspection-steel pipe straightening -Pipe section processing-hydraulic test-flaw detection-printing and coating-finished product.  The main factors that affect the longitudinal electric resistance welded steel pipe: input heat, welding pressure, welding speed, opening angle, placement position of resistance, etc.  It is widely used in water supply and drainage engineering, petroleum and natural gas engineering, and can also be used as piling pipes and bridges; pipes for docks, roads, and building structures. 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 i...

 Price List for API 5L/ASTM A53 GR.B Small Diameter ERW Steel Pipe Note: Those Price are for bare pipe , based on EXW , 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

1. In the production process of  ERW steel pipe , how to ensure that the product quality meets the requirements of technical standards and the needs of customers? An analysis of the factors that affect the product quality during the production of steel pipes. According to the statistics of non-conforming products of Φ76mm high-frequency welded steel pipe unit in a certain month, it is believed that the factors that affect the quality of steel pipe products during the production process are raw materials, welding process, roll adjustment, roll material, equipment failure, production environment, and other reasons. aspect. Raw materials accounted for 32 .44%, below will introduce the infect of material to ERW steel pipe. The influence of raw materials on the ERW steel pipes. The factors that affect the quality of raw materials are mainly the three aspects of the unstable mechanical properties of the steel strip, the surface defects of the steel strip and the large deviations in ...

1. In the production process of  ERW steel pipe , how to ensure that the product quality meets the requirements of technical standards and the needs of customers? An analysis of the factors that affect the product quality during the production of steel pipes. According to the statistics of non-conforming products of Φ76mm high-frequency welded steel pipe unit in a certain month, it is believed that the factors that affect the quality of steel pipe products during the production process are raw materials, welding process, roll adjustment, roll material, equipment failure, production environment, and other reasons. aspect. Raw materials accounted for 32 .44%, below will introduce the infect of material to ERW steel pipe. The influence of raw materials on the ERW steel pipes. The factors that affect the quality of raw materials are mainly the three aspects of the unstable mechanical properties of the steel strip, the surface defects of the steel strip and the large deviations i...

1.Outer Diameter Tolerance ERW steel pipe : Cold-formed and sizing by reducing the diameter by 0.6%. The outer diameter is controlled accurately and the fluctuation range is small, which is helpful to eliminate black leather buckles. Seamless steel pipe : Hot-rolling forming process and sizing completed at about 8000C. The raw material composition, cooling conditions, and cooling conditions of the rolls of the steel pipe have a large impact on outer diameter, so it is difficult to control the outer diameter accurately and fluctuate.  2.Wall Thickness Tolerance ERW steel pipe: using hot-rolled strip as the raw material, the thickness tolerance of modern hot-rolled strips can be controlled within 0.05mm, and seamless steel pipes are produced by round steel perforation, with large wall thickness deviations. The subsequent hot rolling can partially eliminate the wall thickness. Thickness non-uniformity, but currently the most advanced units can only be controlled within ± ...