square pipe and gb

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: -

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Quick Details

Standard:BS, GB, API
Standard:BS 1387, GB 3087-1999, GB/T 8163-1999, GB/T 3087, API 5L
Grade:10#-45#, Q195-Q345
Grade:10#, 20#, 45#, Q235, Q345, Q195
Thickness:0.5 - 15 mm
Section Shape:Square
Place of Origin:Hebei, China (Mainland)
Secondary Or Not:Non-secondary
Application:Structure Pipe
Technique:ERW
Surface Treatment:Other

Packaging & Delivery

Packaging Details:	With bundles and load in containers or by bulk shipment.
Delivery Detail:	30-45 days according to the contract

Specifications

1.Size:15*15mm-400*400mm
2.W.T:0.5-12mm
3.Certification:ISO9001,CE
4.Standard:GB, ASTM.BS1387

galvanized steel pipe

1.ERW galvanized steel tubes
2.OD: 10.3-219mm
3.W.T:0.6-10mm
4.Certificate:ISO 9001-2008
5.Output per month:20000 tons

ERW galvanized steel tubes
O.D	O.D tolerance	W.T	Thickness Tolerance
19--219MM	±0.03	1.0--10MM	±0.03
Length	2--12M , according to customers' requirements
Zinc coating	275--350g/m2
International Standard	ISO 9001;2008
Standard	ASTM A 53 / BS 1387-1985
Material	Q195/Q215/Q235/Q345
Product Category :	Metallurgy, Mineral & Energy
Technique:	Welded
Packing	In bundles or according to customers' requirements
Usage	1.For low pressure liquid delivery such as water , gas and oil 2.For construction , e.g building greenhouse
Main market:	Middle east, Africa, North and South America, East and West Europe, South and southeast Asia,Australia
Place of Origin	China
HS code:	7306309000
Productivity	20000Ton/Month
Processing technology available:	Threading , coupling and with plastic caps protected
Remarks	1) Payment term : T/T 2) Trade Terms : FOB / CFR /CIF 3) Minimum quantity of order : 25 MT (25,000KGS) 4) Delivery period : 10 to 30 Days .

Q: How are steel pipes used in the food processing industry?: Steel pipes are commonly used in the food processing industry for various applications such as transporting liquids, gases, and solids. They are utilized for moving ingredients, process water, and cleaning solutions within the production line. Additionally, steel pipes are used for steam and heating systems, allowing for efficient cooking and sterilization processes. They possess excellent corrosion resistance and durability, ensuring food safety and maintaining hygienic standards in the industry.

Q: Can steel pipes be used for underground sewerage systems?: Yes, steel pipes can be used for underground sewerage systems. Steel pipes are commonly used in underground sewerage systems due to their durability, strength, and resistance to corrosion. They can withstand the weight of the soil and provide a long-lasting solution for transporting wastewater underground. Additionally, steel pipes are often preferred for larger diameter sewerage systems where high strength and structural integrity are crucial.

Q: How are steel pipes used in the construction of offshore oil rigs?: Steel pipes are used in the construction of offshore oil rigs for various purposes. They are primarily used for drilling and extracting oil from deep-sea wells. These pipes are durable and able to withstand harsh offshore conditions, making them ideal for transporting oil and gas from the wells to the surface. Additionally, steel pipes are used in the construction of the rig's infrastructure, including the installation of risers, production lines, and various subsea systems. Overall, steel pipes play a crucial role in ensuring the functionality and integrity of offshore oil rigs.

Q: What is the impact of steel pipe size on flow rate and pressure?: The steel pipe size has a significant impact on both the flow rate and pressure. A larger pipe size allows for higher flow rates by reducing the frictional losses, resulting in increased fluid velocity. This leads to higher pressure drops across the pipe due to the increased surface area exposed to the flowing fluid. Conversely, a smaller pipe size restricts the flow, causing higher pressure drops and lower flow rates. Therefore, selecting an appropriate pipe size is crucial to ensure optimal flow rates and pressure levels in a system.

Q: How do you calculate the pipe friction loss for steel pipes?: The pipe friction loss for steel pipes can be calculated using the Darcy-Weisbach equation, which takes into account the pipe diameter, length, roughness, flow rate, and fluid properties. This equation considers the pressure drop caused by friction as the fluid flows through the pipe. By solving this equation, the pipe friction loss can be determined.

Q: How are steel pipes used in the pulp and paper industry?: Steel pipes are commonly used in the pulp and paper industry for various applications including transporting water, steam, and chemicals throughout the manufacturing process. They are also used for conveying pulp and paper products, as well as for supporting structures such as boiler systems and storage tanks.

Q: Can steel pipes be used for culvert applications?: Indeed, culvert applications can utilize steel pipes. The utilization of steel pipes for culverts is widespread owing to their exceptional endurance, robustness, and immunity to corrosion. They possess the capability to endure substantial burdens, accommodate extensive traffic flow, and manage large water surges. Furthermore, steel pipes can be effortlessly fabricated in diverse dimensions and configurations to cater to specific culvert prerequisites. Their prolonged lifespan and minimal upkeep demands render them a cost-efficient alternative for culvert applications.

Q: What are the common challenges faced during steel pipe installation?: When installing steel pipes, there are various challenges that may arise. One of these challenges involves the need to ensure that the pipe sections are properly aligned and fit together correctly. Welding or threading is typically used to join steel pipes, and if the alignment is not precise, it can result in leaks or weak points in the pipeline. To overcome this challenge, it is necessary to use careful measurements and alignment techniques to ensure a secure and tight fit between the pipe sections. Another challenge that arises is dealing with corrosion and rust. Steel pipes are prone to corrosion, especially when exposed to moisture or corrosive substances. This can lead to the deterioration of the pipes over time, compromising their structural integrity and increasing the risk of leaks. To address this challenge, it is possible to apply protective coatings or linings to the steel pipes to prevent corrosion and extend their lifespan. Additionally, the weight and size of steel pipes can pose a challenge during installation. Steel pipes are heavy, and it can be physically demanding to maneuver and position them. Moreover, the large diameter of some steel pipes makes it difficult to transport and handle them in tight spaces or through narrow pathways. Overcoming this challenge often requires the use of heavy machinery, such as cranes or forklifts, to lift and position the pipes correctly. Lastly, environmental factors can also present challenges during steel pipe installation. Extreme temperatures, harsh weather conditions, or unstable soil conditions can impact the installation process. For example, freezing temperatures can make it challenging to weld the pipes, while unstable soil may require additional reinforcement or stabilization measures to ensure the longevity of the pipeline. In conclusion, the challenges commonly faced during steel pipe installation include the need for proper alignment, the issue of corrosion and rust, the handling of the weight and size of the pipes, and the consideration of environmental factors. Overcoming these challenges requires careful planning, attention to detail, and the utilization of appropriate techniques and equipment.

Q: What is the difference between steel pipe and aluminum pipe?: The main difference between steel pipe and aluminum pipe lies in their composition and properties. Steel pipe is made primarily of iron and carbon, with other elements added to enhance its strength and durability. It is known for its high tensile strength, resistance to corrosion, and ability to withstand high temperatures and pressure. On the other hand, aluminum pipe is made from aluminum, which is a lightweight metal known for its excellent corrosion resistance, thermal conductivity, and malleability. While steel pipe is generally stronger and more rigid, aluminum pipe is lighter and more easily manipulated. Additionally, steel pipe is often used in applications where strength and durability are critical, such as in construction and plumbing, while aluminum pipe is commonly used in industries that require lightweight materials, such as aerospace and automotive.

Q: How are steel pipes connected in pipeline construction?: Steel pipes are connected in pipeline construction through various methods, including welding, threading, and flanges. Welding involves joining the pipes by melting the edges and fusing them together, creating a strong and continuous connection. Threading involves screwing the pipes together using threaded ends, ensuring a secure connection. Flanges are used to connect pipes with the help of bolts, providing a detachable yet sturdy connection. These methods ensure the integrity and safety of the pipeline system.

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