Spiral Steel Pipe for Construction

Steel pipe materials for steel structures: 16Mn spiral steel pipe, Q345B spiral steel pipe, L245 spiral steel pipe, L360 spiral steel pipe, X40-X80 spiral steel pipe. Common standards for spiral steel pipes include: SY/T5037-2008 (industry standard, also known as Spiral Welded Steel Pipe for Ordinary Fluid Transportation), GB/T9711.1-2008 (national standard, also known as Technical Conditions for Delivery of Steel Pipes for Petroleum and Natural Gas Industry Transportation, Part 1: Grade A pipe (Grade B pipe with stricter requirements is GB/T9711.2)), API-5L (American Petroleum Institute, also known as Pipeline Steel Pipe; divided into PSL1 and PSL2 levels), SY/T5040-2008 (Spiral Welded Steel Pipe for Piling).

Cangzhou manufacturer specializing in customized spiral steel pipes for steel structures

Utilize external or internal roll forming control. The first three steel pipes in each batch must undergo strict initial inspection, checking the mechanical properties of the welds, chemical composition, fusion status, surface quality of the steel pipes, and undergo non-destructive testing to ensure the tube-making process is qualified before mass production. Employ a weld gap control device to ensure the weld gap meets welding requirements, with strict control over pipe diameter, misalignment, and weld gap. Tianjin Steel Pipe Company, Baosteel Trade (Steel Pipe) Company, Angang Seamless Factory, and Baogang Seamless Factory have all implemented the above process. Pan Chenggang Seamless and Hengyang Steel Pipe Company are also rushing to complete the supporting construction projects and are expected to achieve the above process flow in the near future. For smelting equipment, the capacity of an electric arc furnace or converter should not be less than 70-100 tons to create conditions for steel ladle refining. It is crucial to pay full attention to the on-line detection means and automatic control systems of the continuous rolling mill units, equip advanced flaw detection systems, and for production lines designated for oil pipes and high-pressure boiler pipes, a high-level heat treatment and processing system should be provided.

In addition to mechanical tracking, other solutions are achieved by improving probes and instruments. However, mechanical tracking can only improve the probe mount to prevent changes in lift-off gap. In practical industrial applications, the probe mechanical tracking method is the most commonly used to overcome the effects of lift-off. There are two common probe mechanical tracking modes: one is a combination of roller limit stops with cylinders or spring thrusts to maintain a constant distance between the detection probe and the workpiece surface. Although this method can effectively suppress lift-off effects, it also increases vibration and noise. The other method is to use the probe mechanical tracking, which involves using a distance-measuring probe to timely measure the fluctuations in the lift-off gap of the detection probe and control and drive the stepping motor or other power devices using the distance-measuring signal to ensure a constant gap between the probe and the workpiece. This method is suitable for flat scanning of plates or billets, but its drawback is that the mechanical action response speed is relatively slow.

Now, the commonly used standards for spiral steel pipes generally include: SY/T5037-2000 (Ministry Standard, also known as Spiral Seam Submerged Arc Welded Steel Pipe for General Fluid Conveyance), GB/T9711.1-1997 (National Standard, also known as Technical Conditions for Delivery of Steel Pipes for Petroleum and Natural Gas Industry, Part A: Grade A Steel Pipe (with GB/T9711.2B Grade Steel Pipe being the strictest requirement currently)), API-5L (American Petroleum Institute, also known as Line Pipe; divided into PSL1 and PSL2 levels), and SY/T5040-2000 (Spiral Welded Steel Pipe for Piling). The SY/T5037-2000 is the Ministry Standard, commonly referred to as GB9711.1-1997 National Standard Spiral Pipe, and the steel pipe for conveying petroleum and natural gas, Grade A, is typically used for low-pressure fluid conveyance with Spiral Seam High-Frequency Welded Steel Pipe (SY5039-83), which is made from hot-rolled steel strip coils as billets, formed by cold-rolled spiral, and welded using high-frequency butt welding method.

And it's quite complex. Factory Price for Large Diameter Spiral Steel Pipe - Cangzhou Spiral Steel Pipe Group Co., Ltd. specializes in producing spiral steel pipes for advertising towers, billboards, large diameter spiral steel pipes, ASTM spiral steel pipes, API spiral steel pipes, GB spiral steel pipes, spiral steel pipes, material spiral steel pipes, pile driving spiral steel pipes, dredging spiral steel pipes, L245 spiral steel pipes, spiral steel pipes production factory, spiral steel pipe manufacturing process, Cangzhou Spiral Steel Pipe Group Co., Ltd., Cangzhou Spiral Steel Pipe, sewage treatment spiral steel pipes, power plant and chemical industry spiral steel pipes, nuclear power spiral steel pipes, fuel gas conveying spiral steel pipes, non-flammable fluid conveying spiral steel pipes, Petroleum Department standard spiral steel pipes. Cangzhou Spiral Steel Pipe Group Co., Ltd. aims to be "the leading domestic engineering comprehensive service provider" and holds "technology leadership, quality service, people-oriented, and innovation" as its core values.

Since our establishment, we have gained widespread acclaim in the industry by adhering to the principle of honesty and quality first! Business is a form of humanity, offering drainage use Q235B large diameter spiral steel pipes. Cangzhou Spiral Steel Pipe Group Co., Ltd. mainly deals in spiral steel pipes, double-sided submerged arc welded spiral pipes, large diameter spiral pipes, large diameter thick-walled spiral steel pipes, and spiral pipes for ordinary fluid transmission with materials such as Q235A, Q235B, 20#, and Q345 (16Mn). We also supply special spiral submerged arc焊接 pipes for transportation lines with materials like L245(B), L290 (X42), L320 (X46), L360 (X52), L390(X56), L415(X60), L450(X65), L485(X70), and L555(X80). The general types of spiral submerged arc焊接 pipes: Spiral submerged arc焊接 pipes are generally stronger than straight seam welded pipes, allowing for the production of larger diameter pipes from narrower billets and different diameter pipes from the same width billets.

Innovate for development, serve to win credibility. Spiral steel pipes generally have higher strength than straight seam welded pipes, allowing for the production of larger diameter pipes with narrower billets and different diameter pipes with the same width billets. Large diameter spiral steel pipes are made using double-sided submerged arc welding technology, which boasts stable welding quality, high welding production rates, minimal arc light, and almost no smoke or dust. Key parameters include outer diameter, wall thickness, and length. The main mechanical tests include hydrostatic testing, bending, and flattening. Achieve real-time data transmission, with technical parameters monitored from the control room. Used for conveying pressure fluids, spiral seam submerged arc welded steel pipes are mainly used for oil and natural gas pipelines; spiral seam high-frequency welded steel pipes used for pressure fluid conveyance are焊接 using high-frequency butt welding. These steel pipes have high pressure-bearing capacity, good plasticity, and are easy to weld and shape, offering customized non-standard and non-type steel pipes in various materials. Products have passed the fire professional certification by the chemical building materials testing center.

Petroleum and natural gas industry steel pipes, Grade A general low-pressure fluid conveying spiral seam high-frequency welded steel pipes (SY pipes are made from hot-rolled steel strip coils as billets, formed by normal temperature spiral forming, and welded using high-frequency butt welding method for general low-pressure fluid conveying spiral seam high-frequency welded steel pipes). Piling spiral seam steel pipes (SY pipes are made from hot-rolled steel strip coils as billets, formed by normal temperature spiral forming, and produced by double-sided submerged arc welding or high-frequency welding, used for civil engineering, wharfs, bridges, and other foundation piles). In response to the above requirements, we focus on the following two aspects: · Strictly follow the sandblasting procedure to ensure rust removal quality and complete the interior and exterior primer spraying within one hour, which is fundamental to ensuring the anticorrosion quality. · During the anticorrosion process, we specifically require the glass fiber mesh to be first soaked in epoxy coal tar coating agent. Semi-mechanical winding, and manually flatten the glass fiber mesh with a roller to ensure the uniformity and fineness of the outer coating. · Tubes with both interior and exterior anticorrosion.

Through the plastic coating and anti-corrosion treatment of steel or galvanized steel pipes, the issues of rust and scaling during the burial and water conveyance of ordinary steel pipes are resolved. Large Diameter Spiral Steel Pipe Manufacturer - Cangzhou Spiral Steel Pipe Group Co., Ltd. specializes in producing spiral steel pipes for advertising towers, billboards, large diameter spiral steel pipes, American standard spiral steel pipes, API spiral steel pipes, national standard spiral steel pipes, spiral steel pipes, material spiral steel pipes, pile driving spiral steel pipes, dredging spiral steel pipes, L245 spiral steel pipes, spiral steel pipe production plants, spiral steel pipe manufacturing processes, Hebei spiral steel pipe factories, Cangzhou spiral steel pipes, spiral steel pipes for sewage treatment, spiral steel pipes for power plant and chemical industry, nuclear power spiral steel pipes, spiral steel pipes for conveying flammable fluids, spiral steel pipes for conveying non-flammable fluids, oil department standard spiral steel pipes. Cangzhou You Tong Pipeline Co., Ltd. envisions itself as "creating the best domestic engineering comprehensive service provider."

But compared to seamless pipes of the same length, the weld length increases by 30~100%, and the production speed is slower. Therefore, smaller diameter welded pipes mostly use straight seam welding, while larger diameter welded pipes generally use spiral weld pipes. 1. For pressure fluid transmission, use spiral seam submerged arc welded steel pipes SY5036-83, mainly used for pipeline transmission of oil and natural gas; pressure fluid transmission spiral seam high-frequency welded steel pipes SY5038-83, welded by high-frequency butt welding method, used for pressure fluid transmission spiral seam high-frequency welded pipes. Steel pipes have strong pressure-bearing capacity, good plasticity, and are easy to weld and shape; generally, low-pressure fluid transmission spiral seam submerged arc welded steel pipes SY5037-83, made by double-sided automatic submerged arc welding or single-sided welding, used for submerged arc welding pipes for water, gas, air, and steam transmission, etc. Currently, the commonly used standards for spiral steel pipes are generally divided into: SY/T5037-2000 (departmental standard, also known as ordinary fluid transmission pipeline spiral seam submerged arc welding steel pipes), GB/T9711.1-1997 (national standard, also known as technical conditions for delivery of steel pipes for oil and natural gas industry transmission, Part 00: Grade A steel pipes (currently, the requirements are strict with GB/T9711.2 Grade B steel pipes)), API-5L (American Petroleum Institute, also known as pipeline steel pipes).

With "Technology Leadership, Excellent Service, People-Oriented, and Innovation-driven" as our core values, we strive for development through innovation and win reputation through service. Spiral steel pipes with submerged arc welding, used for conveying pressurized fluids, are primarily employed in pipelines for oil and natural gas transportation; spiral seam high-frequency welded steel pipes,焊接 using high-frequency butt welding, are used for conveying pressurized fluids. These pipes have strong pressure-bearing capacity, good plasticity, and are easy to weld and shape. Generally used for low-pressure fluid conveyance, double-sided automatic submerged arc welding or single-sided welding methods are employed to produce submerged arc welding pipes for water, gas, air, and steam, etc. They are mainly applied in water supply projects, petrochemical industry, chemical industry, power industry, agricultural irrigation, and urban construction. Spiral steel pipes for liquid conveyance: water supply and drainage. For gas conveyance: coal gas, steam, liquefied petroleum gas. For structural use: pile driving pipes, bridge construction; wharf, road, and building structural pipes, etc.