Seamless Hot Rolled Boiler Tube

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 25-35 m.t.

Supply Capability:: -

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Specifications

1. Standard: GB,ASTM,DIN,JIS
2. OD:30-508mm,WT:4-100mm
3. Length:Max 12 m
4.Tolerance:OD<0.5%.WT<10%

Product Description

1. Commodity Name: Carbon Seamless steel pipe

2. Standard: API,GB,ASTM,ASME,DIN

3. Quality grade: 10#, 20#, A106B, A53B, API 5L B, Q235, Q345, ST37-2, ST 45, ST52.etc.

4. Dimension:

OD: 1/2"-24"

WT: 2.5-80mm, SCH10~SCH40~XXL

length: 5.8m,6m,8m,9m,12m

5. Technique: Hot Rolled/Cold Rolled/ Cold Drawn

6. application

carbon seamless steel pipes are widely used in gas, water and oil, transpotation;constructions;Bridge,highway,windows of model steel door; building materials;fences;heating facilities Fluid Pipe;conduit pipe,scaffolding pipe.etc.

7. Payment Terms: L/C D/A D/P T/T

8.packing and shipment

Packaged in bundles,as per customers' requirements, it can also bepackagesd as beveled ends, typed marking, black painting, plastic caps protection,woven bags packing

For 20" container the max length is 5.8m; For 40" container the max length is 12m. other options are available based on customer requests. Please discuss when placing orders.

Seamless Boiler Tube Image

Seamless Hot Rolled Boiler Tube

FAQ of Seamless Boiler Pipe

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.

Any question, pls feel free to contact us !

Q: Can steel pipes be used for underground stormwater drainage?: Indeed, underground stormwater drainage can utilize steel pipes. These pipes possess durability and boast a high strength-to-weight ratio, rendering them appropriate for subterranean usage. They can endure substantial burdens and fend off corrosion, thus guaranteeing sustained effectiveness within stormwater drainage systems. Furthermore, steel pipes lend themselves to easy welding, facilitating customization and flexibility during both design and installation. Nonetheless, it is imperative to implement adequate corrosion protection measures, such as the application of a protective coating or the utilization of corrosion-resistant alloys, to avert degradation over time. Regular maintenance and monitoring are also advisable to uphold the pipes' integrity and ensure optimal stormwater drainage functionality.

Q: When can I use the PVC pipe and when to use the galvanized pipe?: Galvanized pipes are generally used outside the drying environment or building blocks, and PVC is mainly used for pre embedding in walls or humid environments. If in the ceiling ceiling, below the roof, you need to use galvanized pipe, in the floor below, on the ground you need to use PVC.

Q: How do you repair damaged steel pipes?: To fix steel pipes that have been damaged, there are several steps you can take: First, you need to determine the extent of the damage. Assess how severe it is to decide if you can repair it or if you need to replace the entire pipe. Next, isolate and drain the section that is damaged. Shut off the water supply to that part of the pipe and drain any remaining water to prevent further leaks or damage. After that, clean the damaged area by removing any dirt, rust, or debris. You can use a wire brush or sandpaper for this job. Then, prepare the damaged area by roughening the surface with coarse sandpaper. This will help the repair material adhere better to the pipe. Next, choose a repair method based on the size and location of the damage. There are different options available such as using epoxy putty, pipe wraps, or clamps. Once you've chosen a repair method, follow the instructions provided to apply the repair material to the damaged area. Make sure it covers the entire damaged section and extends slightly beyond it for added protection. After applying the repair material, allow it to cure according to the manufacturer's instructions. This will ensure a strong bond and effective sealing of the damaged area. Once the repair has cured, turn the water supply back on and check for any leaks. If there are no signs of leakage, then the repair has been successful. If there are still leaks, you may need to reconsider the repair or seek professional help. Keep in mind that these steps are a general guideline for repairing damaged steel pipes. The specific repair method may vary depending on the size and severity of the damage. In more complex cases or if you're unsure, it's best to consult a professional plumber or pipe repair specialist.

Q: How do you calculate the pipe flow velocity coefficient for steel pipes?: The pipe flow velocity coefficient for steel pipes can be calculated using the Manning's equation. Manning's equation is used to calculate the flow velocity in open channels and pipes, and it takes into account the hydraulic radius, slope, and roughness coefficient of the pipe. To calculate the pipe flow velocity coefficient for steel pipes, follow these steps: 1. Determine the hydraulic radius (R) of the steel pipe. The hydraulic radius is calculated by dividing the cross-sectional area of the pipe (A) by the wetted perimeter (P). The formula is R = A/P. 2. Find the slope (S) of the pipe. The slope represents the change in elevation divided by the length of the pipe. It is usually given as a ratio or a percentage. 3. Determine the roughness coefficient (n) of the steel pipe. The roughness coefficient represents the internal roughness of the pipe and can be obtained from literature or pipe manufacturer specifications. It is commonly given in terms of the Manning's roughness coefficient. 4. Substitute the values of hydraulic radius (R), slope (S), and roughness coefficient (n) into the Manning's equation: V = (1/n) * R^(2/3) * S^(1/2) where V is the flow velocity. 5. Solve the equation for V to calculate the pipe flow velocity coefficient for steel pipes. It is important to note that the calculated velocity coefficient may vary based on the specific pipe dimensions, flow conditions, and other factors. Therefore, it is recommended to consult relevant engineering standards or consult with a hydraulic engineer to ensure accurate and reliable calculations for specific applications.

Q: How are steel pipes coated to prevent corrosion?: To prevent corrosion, steel pipes can be coated using different methods and materials. One common approach is to apply a protective layer of paint or epoxy on the pipe's surface. This coating acts as a barrier between the steel and the external environment, preventing direct contact with moisture and corrosive substances. Another technique involves galvanization, where the steel pipes are coated with a layer of zinc. Zinc is highly resistant to corrosion and acts as a sacrificial anode. In case of any damage to the coating, the zinc corrodes instead of the steel, ensuring the steel remains intact and free from corrosion. Polyethylene or polypropylene materials can also be fused onto the steel surface, creating a strong bond that provides excellent resistance against corrosion. This method, known as fusion bonding, is commonly used in offshore and underground pipelines. Moreover, a layer of corrosion-resistant alloy can be applied to the steel pipe. This alloy is typically a combination of metals such as nickel, chromium, and molybdenum, which offer superior protection against corrosion in harsh environments. The choice of coating method depends on factors like operating conditions, the presence of corrosive substances, and the expected lifespan of the steel pipes. By effectively applying these coatings, steel pipes can be safeguarded against corrosion, extending their durability and ensuring the integrity of the infrastructure they are used in.

Q: How are steel pipes used in the manufacturing of automotive exhaust systems?: Steel pipes are commonly used in the manufacturing of automotive exhaust systems due to their durability, heat resistance, and ability to withstand corrosive gases. These pipes are utilized to transport and direct the exhaust gases from the engine to the rear of the vehicle. They are often bent and welded to create a complex system of pipes, mufflers, and catalytic converters, ensuring the efficient flow and treatment of exhaust gases while reducing noise levels.

Q: Are steel pipes suitable for underground sewage lines?: Yes, steel pipes are suitable for underground sewage lines. They are strong, durable, and resistant to corrosion, making them an excellent choice for sewage systems.

Q: How do you transport and store steel pipes?: Careful planning and adherence to safety guidelines are essential when it comes to the transportation and storage of steel pipes. The following steps outline the necessary procedures: 1. Select the appropriate mode of transportation: Depending on the quantity and weight of the steel pipes, you have the option to transport them by truck, train, or ship. Evaluate the distance, logistics, and cost-effectiveness of each alternative before making a decision. 2. Package and secure the steel pipes: Proper packaging is crucial to prevent damage during transit. Bundle the pipes together using steel strapping or banding, ensuring a tight and secure fastening to prevent any shifting or movement during transportation. 3. Utilize suitable lifting equipment: When loading and unloading the pipes, make use of appropriate lifting equipment such as cranes, forklifts, or hoists. Ensure that the equipment is capable of safely handling the weight and length of the pipes. 4. Protect against moisture and corrosion: Steel pipes are vulnerable to moisture and corrosion, which can weaken their structural integrity. Apply a protective coating or wrap the pipes with waterproof materials before transportation. Additionally, consider using moisture-absorbing desiccants or placing the pipes on pallets to keep them elevated off the ground. 5. Plan for secure storage: If storing the steel pipes for an extended period, select a dry and secure location. Ensure that the storage area is well-ventilated and shielded from direct exposure to sunlight, rain, or extreme temperatures. Utilize racks or pallets to keep the pipes off the ground and prevent contact with moisture. 6. Conduct thorough inspections for damage: Prior to transportation and after storage, perform comprehensive inspections to identify any damage or signs of corrosion. This proactive approach will enable prompt resolution of any issues and ensure the integrity of the steel pipes. It is important to adhere to local regulations and safety guidelines specific to your region when transporting and storing steel pipes. By following these steps, you can guarantee the safe and efficient transportation and storage of steel pipes while minimizing the risk of damage and preserving their quality.

Q: What are the environmental impacts of steel pipe production and disposal?: The production and disposal of steel pipes have significant environmental impacts. Firstly, the production of steel pipes requires the extraction of raw materials such as iron ore, coal, and limestone. This extraction process leads to habitat destruction, deforestation, and soil erosion. Additionally, mining and processing these materials require a considerable amount of energy, often derived from fossil fuels, contributing to greenhouse gas emissions and air pollution. The manufacturing process itself involves various stages, including melting, casting, rolling, and coating, all of which require substantial energy inputs and emit significant amounts of carbon dioxide and other greenhouse gases. Moreover, the production of steel pipes involves the use of chemicals and additives that can be harmful to the environment if not managed properly. Furthermore, during the disposal of steel pipes, if not recycled or properly managed, they can end up in landfills, contributing to waste accumulation and taking up valuable space. Steel is generally non-biodegradable and can take hundreds of years to decompose. When steel pipes are dumped in landfills, they can release toxic substances and heavy metals, which can contaminate soil and groundwater. However, it is important to note that steel pipes are highly recyclable, and recycling them significantly reduces the environmental impact. Recycling steel pipes helps conserve natural resources, reduces energy consumption, and lowers greenhouse gas emissions. Additionally, using recycled steel in the production of new pipes requires less energy and results in fewer emissions compared to using virgin materials. To minimize the environmental impacts of steel pipe production and disposal, it is crucial to promote sustainable practices throughout the entire lifecycle of the product. This includes reducing energy consumption, utilizing renewable energy sources, implementing proper waste management strategies, and encouraging the recycling and reuse of steel pipes.

Q: What are the different types of steel pipe elbows?: There are several different types of steel pipe elbows that are commonly used in various industries and applications. These types include: 1. 90-degree elbows: These elbows have a sharp 90-degree bend and are commonly used when a change in direction is required to redirect the flow of fluid or gas. They are widely used in plumbing, construction, and industrial piping systems. 2. 45-degree elbows: Similar to 90-degree elbows, 45-degree elbows also provide a change in direction but with a smaller angle. They are often used in situations where a more gradual change in flow direction is required. 3. Long radius elbows: Long radius elbows have a larger radius of curvature compared to standard elbows. This design helps to reduce fluid friction and pressure drop, making them suitable for applications that require smoother flow, such as in high-flow systems or those involving viscous fluids. 4. Short radius elbows: In contrast to long radius elbows, short radius elbows have a smaller radius of curvature. They are generally used in tight spaces where a compact design is required, but they can cause higher pressure drops due to increased fluid friction. 5. Reducing elbows: These elbows are used when there is a need to connect pipes of different diameters. They have one end with a larger diameter and the other end with a smaller diameter, allowing for a smooth transition between two pipes of different sizes. 6. Mitered elbows: Mitered elbows are custom-made elbows that are fabricated by cutting and welding multiple sections of pipe at specific angles. They are often used in situations where standard elbows cannot accommodate the required angle or when a unique design is needed. Overall, the selection of the appropriate type of steel pipe elbow depends on factors such as the application, fluid flow requirements, space constraints, and compatibility with the piping system.

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