Building materials/galvanized hollow section
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 9000 m.t./month
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1、Structure of Galvanized hollow section Pipe API103:
Galvanized hollow section Pipe is formed by drawing a solid billet over a piercing rod to create the hollow shell. As the manufacturing process does not include any welding, seamless pipes are perceived to be stronger and more reliable. We company professional to provide these serious of pipes and what we can give you is not only in good sprice, the most important is we can provide you good quality.
2、Main Features of the Galvanized hollow section Pipe API103:
• High manufacturing accuracy
• Highly strength
• Smaller inertia resistance
• More reasonable price
3、Galvanized hollow section Pipe API103 Specification：
Standard | GB, DIN, ASTM ASTM A106-2006, ASTM A53-2007 |
Grade | 10#-45#, 16Mn 10#, 20#, 45#, 16Mn |
Thickness | 8 - 33 mm |
Section Shape | Round |
Outer Diameter | 133 - 219 mm |
Place of Origin | Shandong, China (Mainland) |
Secondary Or Not | Non-secondary |
Application | Hydraulic Pipe |
Technique | Cold Drawn |
Certification | API |
Surface Treatment | factory state or painted black |
Special Pipe | API Pipe |
Alloy Or Not | Non-alloy |
Length | 5-12M |
Outer Diameter | 21.3-610mm |
Grade | 20#, 45#, Q345, API J55, API K55, API L80, API N80, API P110, A53B |
Standard | ASME, ASTM |
1) Material:20#(ASTM A 106/A53 GRB.API5LGRB,GB),45#,16Mn,10#.
2) Specification range:OD:21.3-610mm,WT:6-70mm,length:6-12m or according to the requirement of clients.
3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above standards,we can also supply seamless steel pipe with standard of DIN,JIS,and so on,and also develop new products according to the requirements of our clients!
4) Surface:black lacquered,varnish coating or galvanized.
5) Ends:Beveled or square cut,plastic capped,painted.
6) Packing:bundles wrapped with strong steel strip,seaworthy packing.
4、Packaging & Delivery
Packaging Details: | seaworthy package,bundles wrapped with strong steel strip |
Delivery Detail: | 15-30days after received 30%TT |
5、FAQ of Galvanized hollow section Pipe API103:
①How is the quality of your products?
Our products are manufactured strictly according to national and internaional standard, and we take a test
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.We company professional to provide these serious of pipes and what we can give you is not only in good sprice, the most important is we can provide you good quality. We are professional in desigh and produce high quality production. Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.
②How about price?
Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one. Sure we will give you best price and make you satisfied.
③Why should you chose us?
Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.
6、Galvanized hollow section Pipe API103 Images：
- Q: How do you inspect steel pipes for defects?
- Inspecting steel pipes for defects involves a systematic approach that combines visual inspection, non-destructive testing (NDT) techniques, and specialized equipment. Here are the steps typically followed to inspect steel pipes for defects: 1. Visual Inspection: Start by visually examining the external surface of the pipe, looking for any visible signs of defects such as cracks, dents, or corrosion. Pay close attention to welds, joints, and areas susceptible to stress or damage. 2. Ultrasonic Testing (UT): Ultrasonic testing is commonly used to detect internal defects in steel pipes. It involves using ultrasonic waves that are sent into the pipe and then interpreted based on the echoes received. Any irregularities in the internal structure, like cracks or voids, can be identified and analyzed. 3. Magnetic Particle Inspection (MPI): MPI is a widely used technique to detect surface and near-surface defects such as cracks, seams, or other discontinuities. This method involves applying a magnetic field to the pipe and then applying ferromagnetic particles (usually iron-based) on the surface. These particles will accumulate and form visible indications at the areas of magnetic flux leakage caused by defects. 4. Eddy Current Testing (ECT): Eddy current testing is suitable for detecting surface and near-surface defects in conductive materials like steel. It involves inducing an alternating current into the pipe and monitoring the changes in the electrical currents induced by any defects present. These changes are then analyzed to identify and evaluate the defects. 5. Radiographic Testing (RT): Radiographic testing is performed by exposing the steel pipe to X-rays or gamma rays and capturing the resulting radiographic images. This technique allows for the detection of internal defects such as cracks, porosity, inclusions, or wall thickness variations. The radiographic images are then examined for any indications of defects. 6. Dye Penetrant Inspection (DPI): DPI is a method used to detect surface-breaking defects in steel pipes. It involves applying a liquid dye on the surface, which penetrates into any surface cracks or flaws. After allowing the dye to seep in and adequately react, excess dye is removed, and a developer is applied to draw out the dye from the defects, making them visible. 7. Pressure Testing: Pressure testing involves pressurizing the steel pipe to a predetermined level and monitoring for any pressure drops or leaks. This test ensures that the pipe can withstand the required pressure without any structural defects. It is important to note that the inspection technique used depends on various factors, such as the type of defect being sought, the size and nature of the pipe, and the specific industry standards and regulations. Inspection professionals with expertise in NDT methods and equipment are typically employed to ensure accurate and reliable results.
- Q: What is the difference between internal and external coating for steel pipes?
- Internal coating for steel pipes refers to the application of a protective layer on the inner surface of the pipe to prevent corrosion and increase durability. This coating is designed to withstand the flow of fluids or gases through the pipe, ensuring the integrity of the material and minimizing the risk of contamination. On the other hand, external coating for steel pipes involves applying a protective layer on the outer surface of the pipe to safeguard it from environmental factors such as moisture, chemicals, or mechanical damage. This coating acts as a barrier, shielding the pipe from corrosion and extending its lifespan. In summary, internal coating focuses on protecting the inner surface of the steel pipe, while external coating aims to safeguard the outer surface. Both coatings are crucial for ensuring the longevity and reliability of steel pipes in various applications.
- Q: How are steel pipes measured and specified?
- Steel pipes are measured and specified using several key parameters. The most common ones include the outer diameter (OD), wall thickness, and length of the pipe. The outer diameter refers to the measurement of the pipe's outside surface from one end to the other. It is typically expressed in millimeters (mm) or inches (in), and it plays a critical role in determining the pipe's strength and carrying capacity. Different applications require different OD sizes, which can range from a few millimeters to several feet. The wall thickness of a steel pipe refers to the distance between its outer and inner surfaces. It is measured in millimeters or inches and is crucial for determining the pipe's durability and resistance to pressure. Thicker walls can handle higher pressure, making them suitable for applications that require transporting liquids or gases under high pressure. The length of steel pipes is generally specified in meters or feet. Standard pipe lengths are often 6 or 12 meters (20 or 40 feet), but custom lengths can be requested based on project requirements. It is important to note that longer pipes may require additional support to prevent sagging or structural issues. Apart from these primary measurements, steel pipes may also be specified based on other factors such as material grade, manufacturing standard, and surface finish. Material grade refers to the quality and composition of the steel used in the pipe, which determines its strength and corrosion resistance. Manufacturing standards, such as ASTM or API, ensure that the pipes meet specific quality and performance criteria. Surface finish specifications may include factors like galvanized coating, which provides protection against corrosion or other specific requirements based on the intended application. Overall, the measurement and specification of steel pipes involve considering the outer diameter, wall thickness, length, material grade, manufacturing standard, and surface finish. These parameters are crucial in determining the suitability of the pipe for various applications and ensuring its performance and durability in different environments.
- Q: What are the different coating options available for steel pipes?
- Some of the different coating options available for steel pipes include epoxy coatings, polyurethane coatings, fusion-bonded epoxy coatings, zinc coatings, and asphalt coatings.
- Q: What is the difference between steel pipe and HDPE pipe?
- Steel pipe and HDPE pipe have different compositions and characteristics, making them suitable for various applications. Steel pipe, made of steel, is a robust and durable material commonly used in industrial and infrastructure projects that require strength and reliability. It can withstand high pressure, temperature, and heavy loads, and is resistant to corrosion for both above-ground and underground installations. On the other hand, HDPE pipe is composed of high-density polyethylene, a plastic polymer. These pipes are lightweight, flexible, and easy to install, making them ideal for water supply, drainage systems, and agricultural irrigation. They are resistant to chemicals, abrasion, and UV rays, making them suitable for indoor and outdoor use. HDPE pipes also have a long service life and require low maintenance. In terms of cost, steel pipes are generally more expensive due to the raw materials and manufacturing process involved. However, they are chosen for their superior strength and durability in applications with high pressure or extreme conditions. HDPE pipes offer a cost-effective solution for applications that don't require the same level of strength and durability. In summary, the differences between steel pipe and HDPE pipe lie in their composition, strength, durability, and cost. Steel pipe is known for its strength and reliability, while HDPE pipe offers flexibility, easy installation, and resistance to chemicals and UV rays. The choice between the two depends on the specific application and project requirements.
- Q: How do you measure the thickness of steel pipes?
- One common method to measure the thickness of steel pipes is to use a specialized tool called a pipe thickness gauge. This device consists of a small, handheld instrument with a probe that is inserted into the pipe. By applying pressure to the probe, the gauge can accurately determine the thickness of the pipe's wall. Additionally, ultrasonic testing can also be employed to measure the thickness by sending sound waves through the pipe and analyzing the reflections.
- Q: Galvanized steel pipe in addition to good rust resistance, what are the advantages?
- Galvanized steel is cracking for 39 days and will not, especially suitable for Northern very cold environment.
- Q: What are the factors to consider while selecting steel pipes for a project?
- When choosing steel pipes for a project, there are several key factors to take into account. These factors encompass the material composition of the steel, the dimensions of the pipes, the intended use, the environmental conditions, and the allocated budget. Firstly, the material composition of the steel pipes plays a vital role in determining their strength, resistance to corrosion, and overall durability. Carbon steel, stainless steel, and alloy steel are commonly used types of steel for pipes, each possessing unique characteristics suitable for different applications. Secondly, the dimensions of the pipes, including diameter and wall thickness, should be carefully considered. It is crucial to ensure that these dimensions align with the project requirements and the system in which the pipes will be installed. This ensures that the selected pipes can effectively handle the required flow rates and pressures. Thirdly, thorough assessment of the intended application of the steel pipes is necessary. Different projects may demand pipes with specific features, such as heat resistance, pressure resistance, or the ability to transport particular substances like gas, oil, or water. Understanding these application requirements aids in selecting the appropriate type of steel pipes. Evaluation of the environmental conditions in which the pipes will be installed is also important. Factors such as temperature fluctuations, exposure to moisture, corrosive substances, and external pressures must be taken into account. For example, if the project involves underground installation or exposure to corrosive chemicals, corrosion-resistant steel pipes may be necessary. Lastly, the allocated budget for the project is a significant consideration. The cost of steel pipes can vary depending on their material composition, dimensions, and additional features. Striking a balance between project requirements and available budget ensures cost-effectiveness without compromising the quality and performance of the pipes. In conclusion, the selection of steel pipes for a project necessitates careful consideration of factors including material composition, pipe dimensions, intended application, environmental conditions, and budget. By thoroughly evaluating these factors, one can choose the most suitable steel pipes that meet project requirements, ensuring long-term performance and durability.
- Q: How are steel pipes used in construction?
- Steel pipes are commonly used in construction for various purposes such as structural supports, plumbing systems, and underground utility installations. They provide strength, durability, and resistance to corrosion, making them ideal for carrying fluids, gases, and other materials. Additionally, steel pipes can be easily welded, allowing for efficient and secure connections in building frameworks and infrastructure.
- Q: What are the different types of steel pipe connections for fire sprinkler systems?
- There are several types of steel pipe connections commonly used in fire sprinkler systems, including threaded connections, grooved connections, and welded connections. Threaded connections involve screwing the pipes together using tapered threads and are commonly used for smaller pipe sizes. Grooved connections use a coupling and gasket system to join the pipes, creating a secure and flexible connection. Welded connections involve permanently joining the pipes together using heat and are typically used for larger pipe sizes or in situations where maximum strength is required.
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Building materials/galvanized hollow section
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 9000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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