Kinds of carbon steel square rectangular tube
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 9500 m.t./month
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Item specifice
1、Structure of Kinds of carbon steel square rectangular tube
Square tube, square tube is a kind of call and rectangular tube, is equal and not equal to the length of steel pipe. Is the strip through the process of processing roll system. In general is the strip through the demolition of the package, flat, curly, welded to form a circular tube, and then rolled into a square tube and then cut into a square tube and then cut into the required length.
2、Main Features of Kinds of carbon steel square rectangular tube:
• High manufacturing accuracy
• High strength
• Small inertia resistance
• Strong heat dissipation ability
• Good visual effect
• Reasonable price
3、 Kinds of Kinds of carbon steel square rectangular tube：
Standard | GB, DIN, ASTM |
Grade | 10#-45#, 16Mn 10#, 20#, 45#, 16Mn |
Thickness | 1.5 - 25 mm |
Section Shape | Square and rectangular |
Outer Diameter | 20*20 mm-------400*400mm 20*30mm*300*500mm |
Place of Origin | Tianjin, China (Mainland) |
Length | 3-12M |
Outer Diameter | 20*20 mm-------400*400mm 20*30mm*300*500mm |
Grade | 235B 345B |
Standard | ASME, ASTM |
1) Material:(ASTM A 106/A53 GRB.API5LGRB,GB,235B,345B
2) Specification range:OD: 20*30mm----300*500mm 20*20 mm---400*400mm ,WT: 1.5 - 25 mm ,length:3-12m or according to the requirement of clients.
3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above
4) Surface:black lacquered,varnish coating or galvanized.
5) Ends:Beveled or square cut ,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 Kinds of carbon steel square rectangular tube:
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.
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.
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、 Kinds of low carbon square rectangular tube Images：
- Q:Can steel pipes be used for the construction of offshore platforms?
- Yes, steel pipes can be used for the construction of offshore platforms. Steel pipes are commonly used in offshore platforms due to their durability, strength, and resistance to corrosion. They can be utilized for various purposes such as structural support, transportation of fluids, and installation of equipment. Additionally, steel pipes are readily available, cost-effective, and can withstand the harsh marine environment, making them a suitable choice for offshore platform construction.
- Q:What is the fatigue strength of steel pipes?
- The ability of steel pipes to withstand repeated cyclic loading without failing is referred to as their fatigue strength. This characteristic is of utmost importance for pipes that experience dynamic or fluctuating loads, such as those used in the oil and gas industry, transportation infrastructure, or industrial applications. Several factors can affect the fatigue strength of steel pipes, including the grade of steel, dimensions of the pipe, manufacturing process, surface conditions, and environmental factors. Generally, steel pipes with higher tensile strength and toughness exhibit better resistance to fatigue. Fatigue strength is typically determined by subjecting the pipes to cyclic loading until failure occurs, through a process known as fatigue testing. The results of these tests are then used to establish a fatigue curve or S-N curve, which illustrates the relationship between the applied stress amplitude and the number of cycles required for failure. To quantify the fatigue strength, it is common to express it as the stress amplitude required to cause failure after a specific number of cycles, such as the stress amplitude at 10 million cycles (S-N10^7). However, it is important to consider other factors such as mean stress, surface finish, and loading frequency, which can also influence fatigue strength and may require consideration in specific applications. Ultimately, the fatigue strength of steel pipes is a crucial factor in engineering design and maintenance, as it ensures the long-term integrity and reliability of the pipes under cyclic loading conditions.
- Q:How are steel pipes used in the manufacturing of marine applications?
- Steel pipes are commonly used in the manufacturing of marine applications due to their durability, corrosion resistance, and high strength. These pipes are utilized for various purposes, such as constructing ship hulls, offshore platforms, and underwater pipelines. They are also employed in the manufacturing of marine equipment, including pumps, valves, and heat exchangers. Furthermore, steel pipes are crucial for transporting fluids, such as oil, gas, and water, in marine environments. Overall, steel pipes play a vital role in ensuring the reliability and efficiency of marine applications.
- Q:How are steel pipes used in hydroelectric power plants?
- Steel pipes are used in hydroelectric power plants to facilitate the transportation of water from the reservoir to the turbines. These pipes are essential for maintaining a steady flow of water, which is crucial for generating electricity through the rotation of turbines. Additionally, steel pipes are employed in the construction of penstocks, which are large pipes directing water towards the turbines, ensuring efficient energy production in hydroelectric power plants.
- Q:What are the different types of steel pipe joints for underwater applications?
- Some different types of steel pipe joints for underwater applications include flanged joints, welded joints, and mechanical joints. Flanged joints involve connecting pipes by bolting together flanges at the ends. Welded joints are created by fusing the ends of pipes together using heat and pressure. Mechanical joints use couplings or connectors to join pipes together, typically with rubber seals to ensure a watertight connection.
- Q:What are the common standards for coating and lining of steel pipes?
- Various organizations and regulatory bodies have outlined the common standards for coating and lining steel pipes to ensure their durability, corrosion resistance, and overall quality. These standards are widely recognized and utilized in different industries. Here are some examples: 1. The American Society for Testing and Materials (ASTM) has developed numerous standards for coating and lining steel pipes. For instance, ASTM A775/A775M addresses epoxy-coated reinforcing steel, ASTM A1064/A1064M focuses on metallic-coated steel wire, and ASTM A1057/A1057M covers fusion-bonded epoxy-coated steel reinforcement. 2. The American Water Works Association (AWWA) has established standards specifically for coating and lining steel pipes used in the water industry. AWWA C210 deals with liquid epoxy coating systems for both the interior and exterior of steel water pipelines, while AWWA C213 focuses on fusion-bonded epoxy coating for these pipelines. 3. The National Association of Corrosion Engineers (NACE) develops standards and recommended practices for corrosion control in steel pipes. NACE SP0169 provides guidelines for selecting and applying coatings for underground or submerged steel pipelines, and NACE SP0198 offers recommendations for external coatings of steel pipelines. 4. The International Organization for Standardization (ISO) has also developed various standards pertaining to coating and lining steel pipes. ISO 21809-1 specifies the requirements for external coatings applied to buried or submerged pipelines, while ISO 21809-2 concentrates on the internal coating and lining of such pipelines. These standards encompass multiple aspects of the coating and lining process, including surface preparation, application methods, minimum coating thickness, adhesion, and quality control. Adhering to these standards ensures that steel pipes receive proper protection against corrosion, abrasion, and other forms of deterioration. Consequently, they enjoy a longer service life and enhanced performance in industries such as oil and gas, water supply, and infrastructure.
- Q:What are the advantages of PVC pipe and galvanized steel pipe?
- Galvanized steel pipe is also used, because some areas require the use of strength. Moreover, the iron and steel industry is a pillar industry, there are some unspoken rules in it.
- Q:What is the typical diameter range for steel pipes?
- The typical diameter range for steel pipes can vary depending on the specific application and industry requirements. However, in general, steel pipes can have diameters ranging from as small as 0.5 inches (12.7 millimeters) up to several feet (over a meter) in diameter. The most commonly used steel pipes for various purposes, such as plumbing, construction, and transportation of fluids or gases, typically fall within the range of 1/2 inch (13 millimeters) to 36 inches (914 millimeters) in diameter. It is important to note that larger diameter steel pipes are often used for industrial applications, such as oil and gas pipelines, while smaller diameter pipes are commonly used for residential and commercial plumbing systems.
- Q:What are the different types of supports used for steel pipes?
- Some common types of supports used for steel pipes include pipe hangers, pipe clamps, pipe saddles, and pipe shoes. These supports are designed to provide stability, prevent movement, and distribute the weight of the pipes, ensuring they are properly supported and protected.
- Q:What are the different methods of pipe inspection for steel pipes?
- There are several methods of pipe inspection that can be used for steel pipes. Some of the commonly used methods are as follows: 1. Visual Inspection: This is the most basic form of pipe inspection where a trained inspector visually examines the exterior and interior of the pipe to identify any visible defects or abnormalities. This method is often used as a preliminary inspection before more advanced techniques are employed. 2. Magnetic Particle Inspection (MPI): MPI involves applying a magnetic field to the steel pipe and then applying iron particles to the surface. Any surface cracks or defects in the pipe will cause a leakage of magnetic flux, which can be detected by the inspector. This method is particularly effective in identifying surface defects in ferromagnetic materials. 3. Ultrasonic Testing (UT): UT is a non-destructive testing method that uses high-frequency sound waves to detect internal defects or anomalies in steel pipes. A transducer is used to send ultrasonic waves into the pipe, and the reflections or echoes of the sound waves are analyzed to determine the presence of defects such as corrosion, cracks, or wall thickness variations. 4. Radiographic Testing (RT): In this method, X-rays or gamma rays are used to create an image of the internal structure of the steel pipe. The X-rays or gamma rays pass through the pipe, and the resulting image can reveal any defects, such as cracks, corrosion, or weld discontinuities. This method is commonly used for inspecting welded joints. 5. Eddy Current Testing (ECT): ECT is a non-destructive testing technique that uses electromagnetic induction to detect surface and near-surface defects in steel pipes. A coil carrying an alternating current is passed over the pipe's surface, and any changes in the electrical conductivity or magnetic field caused by defects are detected and analyzed. 6. Acoustic Emission Testing (AET): AET is a method that detects and analyzes the high-frequency acoustic signals emitted by materials when they undergo deformation or damage. In the case of steel pipes, AET can be used to monitor and identify defects such as cracks, leaks, or corrosion by analyzing the acoustic signals emitted during service or under stress. These are just a few of the commonly used methods of pipe inspection for steel pipes. The choice of method depends on various factors such as the type of defect being looked for, the accessibility of the pipe, the desired level of sensitivity, and the cost and time constraints. It is often recommended to use a combination of inspection techniques to ensure a thorough assessment of the steel pipes.
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Kinds of carbon steel square rectangular tube
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 9500 m.t./month
OKorder Service Pledge
OKorder Financial Service
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