Straight seam welded perforated tube

some description about product

Straight seam welded perforated tube features a seamless, continuous weld along its length and is punctuated with regularly spaced perforations or holes. This combination of welding and perforations provides unique characteristics that make it invaluable in numerous contexts.

The continuous weld along the length of the tube ensures a strong and reliable bond, making it suitable for high-pressure and high-temperature applications. This robust construction also resists corrosion, making it suitable for use in harsh environments, such as chemical processing plants and offshore oil rigs.

The strategically placed perforations in the tube serve multiple purposes. They allow for controlled fluid flow, making these tubes ideal for applications involving filtration, drainage, and fluid distribution. The size and pattern of the perforations can be customized to meet specific requirements, ensuring efficient fluid management.

In industries like automotive and aerospace, straight seam welded perforated tubes are employed in exhaust systems and heat exchangers. Their perforated design helps reduce noise and control emissions, making them an eco-friendly choice.

In the agricultural sector, straight seam welded perforated tubes are used for irrigation and drainage systems. They help regulate water distribution in fields, contributing to efficient crop growth. The perforations prevent soil erosion while facilitating the removal of excess water, promoting healthy soil conditions.


Straight seam welded perforated tube

Stainless steel straight seam welded perforated tube

Stainless steel straight seam welded perforated tubes are crafted from high-quality stainless steel,

Stainless steel straight seam welded perforated tubes are crafted from high-quality stainless steel, renowned for its exceptional corrosion resistance, durability, and longevity. This combination of materials and construction methods makes them ideal for demanding environments where strength, longevity, and filtration capabilities are essential.

The straight seam welding process ensures a robust and seamless bond along the length of the tube, providing structural integrity and preventing leaks or weak points.

The defining feature of these tubes is the presence of perforations or holes that are strategically placed along their surface. These perforations serve several critical purposes, such as filtration, ventilation, and structural support. They can vary in size, shape, and distribution to meet specific requirements.

These tubes are employed as filter elements in liquid and gas filtration systems, effectively removing contaminants and ensuring product purity. Additionally, they find use in water treatment plants, where they facilitate the removal of impurities from water sources.

Furthermore, these tubes are essential in industries that require structural support and ventilation. In construction, they are used in architectural designs for their aesthetic appeal and practicality in terms of ventilation and drainage.

Straight seam welded perforated tube

Straight seam welded pipe with holes

Straight seam welded pipes with holes require a combination of structural integrity and fluid or gas flow control. These pipes are constructed using a 

welded seam along their length and feature strategically placed holes or perforations along the pipe’s surface.

These pipes are commonly made from materials like carbon steel, stainless steel, or aluminum, which provides durability and corrosion resistance. The holes, which can vary in size and pattern, allow for controlled flow of liquids, gases, or even air, making them suitable for applications such as ventilation, drainage, and filtration.

In industries like oil and gas, these pipes are used as screens or filters in well drilling and extraction processes. The holes in the pipe act as filters, allowing the flow of oil or gas while preventing the passage of unwanted solids. In construction, these pipes find use as drainage systems, efficiently removing excess water and preventing flooding.

The manufacturing process of these pipes involves precise welding techniques to create a strong, leak-proof seam. The holes are then strategically placed based on the intended application.

CUSTOM Straight seam welded perforated tube

Our company provides a kind of metal alloy to solve the problem of providing products with excellent

performance in high temperature and high corrosive environment. Our products are very strong

and welded or sintered. Length, diameter, thickness, alloy, medium grade and other specifications

can be adjusted during the production process, so that the product is suitable for a variety of

filtration, flow and chemical compatibility in different customer processes.


Straight seam welded perforated tube sizes

Straight seam welded perforated tube


usually 1mm,1.2mm,1.5mm,2.0mm etc


500mm customized



Opening rate

45%,60%,85% etc customized

Outer diameter range


How is straight seam welded perforated tube manufactured?

Straight seam welded perforated tube

Straight seam welded perforated tubes are manufactured by perforating sheets of materials like stainless steel, then forming them into a tube shape. The perforated sheet is shaped into a tube using roll forming or spiral welding methods.

During straight seam welding, an electric current is passed through the sheet edges, melting the metal, and pressing them together to create a continuous tube. This welding process is carefully controlled to ensure a strong, consistent seam.

After welding, the tube may undergo trimming and surface treatments. Straight seam welded perforated tubes serve various purposes in industries like filtration, automotive, aerospace, and architecture due to their strength and functionality.

Can straight seam welded perforated tubes be customized to meet specific design or performance requirements?

Straight seam welded perforated tubes are highly customizable to meet specific design or performance requirements. These tubes, made from materials like stainless steel or carbon steel, feature precise perforations that can be tailored in terms of size, shape, and distribution to accommodate various applications.

Whether you need them for filtration, acoustic control, structural support, or any other purpose, customization options allow you to optimize factors like permeability, strength, corrosion resistance, and appearance.

Additionally, you can choose from various tube diameters, lengths, and end finishes to ensure they seamlessly integrate into your project.

How is the welding process controlled to ensure the integrity of the tube, especially around the perforated areas?

Straight seam welded perforated tube

To ensure the integrity of straight seam welded perforated tubes, precise control of the welding process is paramount. First, the selection of materials and their preparation are critical. High-quality metals with proper thickness and perforation patterns are chosen.

Next, the welding equipment is set up meticulously, including the selection of appropriate electrodes and welding parameters like voltage, current, and travel speed.

During welding, operators closely monitor the process, maintaining a consistent arc length and ensuring even heat distribution along the seam. Automated welding machines, like orbital welders, can be used for enhanced precision.

Quality control techniques such as non-destructive testing (NDT) methods like ultrasonic testing, radiographic testing, or eddy current testing are employed to detect any defects or discontinuities in the weld.

Additionally, post-weld heat treatment and stress relieving processes may be applied to minimize residual stresses and enhance the tube’s mechanical properties. Regular inspections and quality checks at various stages of production are essential to verify the tube’s structural integrity, ensuring it meets industry standards and customer specifications.

How are the perforations or holes created in the tube wall, and what is the typical hole pattern?

Straight seam welded perforated tube

Perforations or holes in straight seam welded perforated tube walls are typically created through a multi-step manufacturing process. First, a flat sheet of metal, such as stainless steel or aluminum, is chosen for the tube’s construction.

This sheet is then fed through a perforating machine, which can utilize various methods like punching, drilling, or laser cutting to create precise holes in a predetermined pattern on the metal sheet. The choice of hole size, shape, and spacing depends on the intended application and design specifications.

After perforation, the metal sheet is rolled into a cylindrical shape and welded along its seam to form the tube.


The typical hole pattern of straight seam welded perforated tubes varies based on the intended application. However, common patterns include staggered and straight-line configurations. Staggered hole patterns have alternating rows of holes, with each row slightly offset from the previous one. This design offers improved strength and better filtration properties.

In contrast, straight-line hole patterns feature rows of holes aligned in a straight, parallel fashion, making them suitable for applications requiring precise alignment or a decorative appearance.

How does the selection of welding techniques impact the structural integrity of the tube?

Straight seam welded perforated tube

The selection of welding techniques plays a critical role in determining the structural integrity of straight seam welded perforated tubes. Various welding methods, such as TIG (Tungsten Inert Gas), MIG (Metal Inert Gas), and SAW (Submerged Arc Welding), can be employed, each with its own implications.

TIG welding, known for precision and low heat input, minimizes distortion and maintains the tube’s roundness. However, it may be time-consuming and costly. MIG welding is efficient but can result in higher heat input, potentially distorting the tube or causing deformations if not managed carefully. SAW welding, often used for thicker materials, provides deep penetration but requires adequate control to prevent internal defects.


Most frequent questions and answers

Straight seam welded tubing is used in various industries and applications, and the choice of materials depends on factors like strength, corrosion resistance, and specific environmental conditions. Common materials for such tubing include:

Stainless steel: Known for its excellent corrosion resistance and durability, stainless steel is commonly used in tubing for industries like food processing, pharmaceuticals, and construction. Grades like 304 and 316 are popular choices.

Aluminum: Lightweight and corrosion-resistant, aluminum tubing is often chosen for applications where weight is a concern, such as in the aerospace and automotive industries.

Copper: Copper tubing is valued for its excellent thermal and electrical conductivity. It’s commonly used in HVAC and refrigeration systems.

Titanium: Extremely strong and corrosion-resistant, titanium tubing finds applications in aerospace, medical implants, and high-performance racing.

The selection of material depends on the tubing’s intended use, environmental factors, and cost considerations. Each material has its unique properties that cater to specific requirements in diverse industries.

Straight seam welded tubes find applications in various industries due to their versatility and durability. Some typical applications include:

Construction: These tubes are used in the construction of buildings and infrastructure for structural support, scaffolding, and fencing.

Automotive: Straight seam welded tubes are employed in the automotive industry for manufacturing exhaust systems, chassis components, and roll cages.

Aerospace: In aerospace, these tubes are essential for manufacturing components such as hydraulic lines, fuel systems, and aircraft frames.

Manufacturing: Straight seam welded tubes are utilized in the production of machinery, conveyors, and material handling equipment.

Agriculture: Agricultural equipment, such as irrigation systems and grain conveyors, often incorporate these tubes.

Energy: In the renewable energy sector, these tubes are used in the construction of wind turbine towers and solar panel support structures.

Overall, straight seam welded tubes play a crucial role in diverse industries, providing cost-effective solutions for a wide range of applications.

Firstly, straight seam welded perforated tubes provide excellent structural integrity due to the continuous seam welding, ensuring durability and reliability. Their perforated design allows for controlled fluid or gas flow, making them ideal for filtration, fluid distribution, and heat exchange applications.

Additionally, these tubes can be customized with various hole sizes, shapes, and patterns to meet specific requirements, enhancing their versatility. Their uniform perforation pattern ensures consistent performance, and they are easy to clean and maintain.

The selection of hole diameter and spacing in straight seam welded pipes is crucial for ensuring structural integrity and performance. Several factors influence these parameters:

Pipe material: The material’s tensile strength, ductility, and corrosion resistance dictate appropriate hole sizes and spacing.

Operating conditions: Considerations such as internal pressure, temperature, and fluid content affect hole size and spacing to prevent leaks or structural failure.

Welding process: The chosen welding method (e.g., TIG, MIG, or SAW) influences hole dimensions and spacing to ensure proper fusion and strength.

Pipe size: Larger pipes may require more and larger holes for inspection, maintenance, or to accommodate additional components.

Regulatory standards: Compliance with industry and safety standards dictates hole size and spacing for inspection, maintenance, and safety access.

Balancing these factors ensures that the chosen hole diameter and spacing are suitable for the specific application, promoting pipe longevity and performance while meeting safety and regulatory requirements.

When specifying the dimensions and tolerances of a stainless steel straight seam welded perforated tube, essential parameters include: outer diameter (OD), wall thickness, perforation pattern (hole size, spacing, and arrangement), length, straightness, surface finish, material grade (e.g., 304 or 316), tolerance specifications for OD, wall thickness, and length, testing and inspection standards, and packaging requirements.

Clear definitions of these parameters ensure the tube’s compatibility with its intended use, quality, and precision in manufacturing.

For straight welded perforated tube, stainless steel is often chosen for its exceptional corrosion resistance, especially in aggressive environments. The choice of stainless steel grade, such as 304 or 316, should align with the specific corrosion challenges of the application to prevent degradation and ensure long-term durability.

The surface finish impacts not only aesthetics but also functionality. A smooth surface minimizes friction and is easier to clean, making it suitable for applications like food processing. Conversely, a textured finish may enhance grip for certain industrial uses.

Selecting the appropriate surface finish is vital to meet performance, hygiene, and appearance requirements while considering the intended application.

The placement, size, and distribution of holes in the straight seam welded pipe impact flow dynamics. More holes or larger holes can enhance flow rates but may lead to increased pressure drops due to higher turbulence and resistance.

Conversely, fewer or smaller holes reduce flow rates but minimize pressure drops. Precise hole positioning is crucial for uniform distribution of fluid, ensuring efficient heat transfer or filtration.

First, ensuring straight seam welded pipes weld quality is crucial, as subpar welds can lead to leaks or structural weaknesses. Controlling the welding process parameters, such as heat input and welding speed, is essential to maintain integrity.

Secondly, alignment and fit-up can be problematic, particularly when connecting pipes of different diameters or materials. Precise alignment and preparation are necessary to prevent angular or axial misalignment.

Additionally, corrosion and rust can develop along the weld seams if not adequately protected. Proper coating and corrosion prevention measures are vital to extend the pipe’s lifespan.

Lastly, handling and transportation can lead to damage, requiring careful handling and protection during storage and shipping.

When designing supports and connections for perforated straight seam welded pipe within a larger system, several critical considerations must be addressed.

First, ensure that the supports are appropriately spaced to prevent excessive sagging and maintain structural integrity. Consider the material of the supports, which should be compatible with the pipe material to avoid galvanic corrosion.

Adequate bracing and anchoring are essential to prevent vibrations and movement that can lead to fatigue and failure. Proper alignment and spacing of connections, such as flanges or couplings, are crucial for maintaining flow and preventing leakage.

Finally, factor in environmental conditions, temperature variations, and expansion and contraction to select suitable materials and designs that ensure long-term reliability and safety.

Perforated metal welded tubes straight seam differ from other types of perforated tubes primarily in their construction and application. These tubes are crafted by welding a perforated sheet of metal into a cylindrical shape with a longitudinal seam, creating a robust and durable structure.

The straight seam design ensures uniformity and precision in the perforation pattern, making them ideal for applications requiring accurate filtration, ventilation, or structural support.

In contrast, other perforated tube designs may utilize spiral or spiral-lock seams, which can affect the consistency of the perforations and may be better suited for less critical applications. Straight seam welded tubes are commonly used in industries like construction, automotive, and industrial manufacturing due to their reliability and performance.

When determining the size and distribution of perforations for straight seam welded tubes in a specific application, several critical factors must be considered:

Purpose of perforations: Understand the intended function of the perforations, whether it’s for ventilation, heat dissipation, filtration, or structural support.

Material properties: Evaluate the material’s strength, corrosion resistance, and compatibility with the application’s environment.

Fluid or gas flow: Analyze the desired flow rates, pressure drops, and how perforations affect fluid dynamics.

Size and shape: Choose perforation size, shape (round, square, slotted), and pattern based on application-specific needs.

Manufacturing constraints: Consider the feasibility of perforation patterns based on the manufacturing process.

Prototype testing: Perform testing and simulations to validate the chosen perforation design for the intended application.

By carefully weighing these factors, engineers can optimize the size and distribution of perforations in straight seam welded tubes to meet the specific requirements of their application effectively and efficiently.

The production of straight seam welded stainless steel perforated tubes involves specific welding techniques to ensure a high-quality, durable product. Typically, two primary welding methods are employed:

TIG welding (gas tungsten arc welding): TIG welding is commonly used for stainless steel perforated tubes due to its precision and ability to create clean, strong welds. An operator uses a non-consumable tungsten electrode to create an electric arc, while a separate filler material may be added if needed. This process results in a precise, low-heat input weld with minimal distortion.

Plasma welding: Plasma welding is another option, using a focused ionized gas stream to create the weld. It’s suitable for thin-walled stainless steel tubes and offers good control over the welding process, producing high-quality, consistent seams.

Both methods are chosen based on the specific requirements of the stainless steel perforated tube, ensuring structural integrity and corrosion resistance in the final product.

Straight seam welded metal perforated tubes are efficient components for fluid filtration and heat exchange applications. Their perforations allow controlled fluid passage while retaining solid particles. In terms of fluid flow rates, these tubes offer excellent control, enabling precise filtration or heat transfer.

They can handle a wide range of flow rates depending on perforation size and density. Pressure drops are relatively low due to the streamlined design, reducing energy consumption and system wear. These tubes excel in applications like filtration, where they prevent clogging, and heat exchange, where they optimize thermal conductivity.

Maintenance of stainless steel straight seam welded perforated filter tubes in industrial applications is crucial to ensure their longevity and performance. Regular cleaning is essential to prevent clogging and maintain flow rates.

Inspection for corrosion or damage should be done periodically, and any issues addressed promptly to prevent leaks. Gaskets and seals should be checked for wear and replaced as needed to maintain the integrity of the filtration system.

Additionally, proper storage when not in use can prevent contamination or damage. Following a routine maintenance schedule and adhering to manufacturer recommendations will help ensure these filter tubes continue to operate effectively in industrial settings.

Working with straight seam welded perforated filter tubes can present various challenges and issues in manufacturing and applications. First, ensuring precise alignment and welding of seams is crucial to maintain structural integrity and prevent leaks. Controlling the welding process parameters is essential to avoid defects like burn-through or incomplete welds.

In terms of perforations, maintaining consistent hole size, shape, and distribution can be challenging. Variability in perforation quality may affect filtration efficiency and flow rates.  Corrosion and rust can be problematic, particularly in harsh environments, necessitating the use of corrosion-resistant materials.

Furthermore, handling and transportation can cause damage to the tubes, leading to quality issues.

Manufacturers of straight seam welded perforated tubes ensure consistency in hole sizes and spacing by employing precise manufacturing processes and quality control measures. First, they use advanced machinery equipped with computer numerical control (CNC) systems to create holes with accurate dimensions and spacing. These machines are calibrated regularly to maintain precision.

Secondly, manufacturers conduct frequent inspections throughout the production run, using specialized tools to measure hole sizes and spacing, discarding any tubes that deviate from specifications.

Additionally, they employ skilled operators to monitor the process and make real-time adjustments if needed. This combination of technology, rigorous quality checks, and skilled personnel ensures uniformity in the finished perforated tubes.

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