round bibe and gb

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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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 tunnel construction?: Steel pipes are commonly used in tunnel construction for various purposes such as drainage, ventilation, and support. These pipes are installed to facilitate the removal of water from the tunnel, ensuring a dry working environment. They also serve as conduits for supplying fresh air and removing exhaust fumes. Additionally, steel pipes are utilized as structural supports, providing stability and reinforcement to the tunnel walls and ceilings.

Q: Can steel pipes be used for cooling systems?: Steel pipes are a viable option for cooling systems. They are frequently employed in different scenarios, such as cooling systems, because of their robustness, strength, and ability to withstand high temperatures and pressure. Industrial cooling systems, in particular, benefit from steel pipes due to the harsh environmental conditions and corrosive fluids they often encounter. Moreover, steel pipes possess outstanding heat conductivity, which facilitates efficient heat transfer, rendering them a dependable choice for cooling purposes. Furthermore, steel pipes can be easily tailored, joined, and adjusted to fulfill specific cooling system needs. Nevertheless, it is crucial to ensure that the steel pipes utilized are adequately coated or insulated to prevent corrosion and minimize heat dissipation.

Q: Are steel pipes resistant to ultraviolet (UV) radiation?: Steel pipes are not inherently resistant to ultraviolet (UV) radiation. UV radiation can cause degradation and discoloration of certain materials, including steel. However, the extent of the damage depends on various factors such as the type of steel, the duration and intensity of exposure to UV radiation, and the presence of protective coatings or finishes on the steel pipes. In general, uncoated steel pipes are more susceptible to UV radiation damage compared to pipes that have been treated with protective coatings or finishes. These coatings, such as epoxy or polyethylene, provide a barrier against UV radiation and help to prevent the degradation and discoloration of the steel. Therefore, it is important to consider the specific application and environment when choosing steel pipes and implementing appropriate protective measures to ensure their longevity and performance.

Q: Can steel pipes be used for water distribution networks?: Yes, steel pipes can be used for water distribution networks. Steel is a durable and strong material that can withstand high water pressure and provide a long-lasting solution for transporting water in distribution networks. However, it is important to properly coat the steel pipes with suitable materials to prevent corrosion and ensure the safety and quality of the water being distributed.

Q: Are steel pipes affected by magnetic fields?: Yes, steel pipes can be affected by magnetic fields. Steel is a ferromagnetic material, which means it is strongly attracted to magnets and can be magnetized. When exposed to a magnetic field, steel pipes can become magnetized, causing them to behave like magnets themselves. This magnetic effect can have several implications. First, if steel pipes are near strong magnetic fields, such as those generated by electrical currents or powerful magnets, they can experience a force that may cause them to move or vibrate. This can be problematic in certain applications, especially if the pipes need to remain stable and secure. Second, the presence of magnetic fields can induce electrical currents in steel pipes. These currents, known as eddy currents, can generate heat and energy losses. In some cases, this can lead to inefficiencies and increased energy consumption in systems that involve steel pipes. Lastly, magnetic fields can also affect the accuracy of magnetic measurement devices used to detect defects or corrosion in steel pipes. The presence of a magnetic field can interfere with the readings, making it more challenging to accurately assess the condition of the pipes. To mitigate these effects, various measures can be taken. For instance, in applications where stability is crucial, steel pipes can be shielded or isolated from strong magnetic fields using non-magnetic materials. Additionally, the impact of eddy currents can be minimized by using pipes with proper insulation or by using magnetic shielding techniques. Overall, while steel pipes are indeed affected by magnetic fields, the extent of the impact depends on factors such as the strength of the magnetic field, the composition of the steel, and the specific application or environment in which the pipes are used.

Q: How are steel pipes inspected for defects?: Steel pipes are typically inspected for defects using various non-destructive testing methods such as ultrasonic testing, magnetic particle inspection, and visual inspection. These techniques help identify any cracks, corrosion, or other defects in the pipes, ensuring their structural integrity and quality.

Q: What is the difference between steel pipe and copper pipe?: The main difference between steel pipe and copper pipe lies in their composition and properties. Steel pipe is typically made from carbon steel, which is an alloy of iron and carbon. On the other hand, copper pipe is made from copper, a naturally occurring metal. One key difference is their durability. Steel pipe is known for its strength and resilience, making it suitable for high-pressure applications and harsh environments. It is highly resistant to corrosion, making it a long-lasting option. Copper pipe, on the other hand, is known for its malleability and ease of installation. It is less durable than steel and can corrode over time, especially when exposed to certain chemicals or aggressive water conditions. Another difference is their thermal conductivity. Copper pipe is an excellent conductor of heat, making it ideal for applications that require efficient heat transfer, such as in plumbing systems for hot water supply. Steel pipe, however, has a lower thermal conductivity compared to copper, which may affect its performance in certain applications. Cost is another factor to consider. Copper pipe is generally more expensive than steel pipe due to the higher cost of copper as a raw material. Additionally, copper pipe requires specialized tools and techniques for installation, which can add to the overall cost. Steel pipe, on the other hand, is often more cost-effective and easier to work with, making it a popular choice for a wide range of applications. In summary, the main differences between steel pipe and copper pipe are their composition, durability, thermal conductivity, and cost. Each type has its own advantages and disadvantages, and the choice between them depends on the specific requirements of the application at hand.

Q: How are steel pipes used in bridge construction?: Steel pipes are commonly used in bridge construction for various purposes. They are often used as piles to provide structural support to the bridge foundation, ensuring stability against soil movement and water pressure. Additionally, steel pipes are used as structural components in the bridge's superstructure, such as for trusses and beams, due to their high strength and durability. Steel pipes also play a crucial role in carrying utilities, such as water and gas pipelines, across the bridge. Overall, steel pipes are an essential element in bridge construction, providing strength, stability, and functionality to the structure.

Q: What are the different methods of lining steel pipes?: There exist various techniques for lining steel pipes, each possessing distinct advantages and applications. Some popular methods comprise: 1. Cement Mortar Lining: This technique entails the application of a cement mortar layer onto the inner surface of the steel pipe. Cement mortar offers outstanding protection against corrosion and grants smoothness to the pipe, consequently diminishing friction and enhancing flow rates. It finds common usage in water supply systems and sewage treatment plants. 2. Polyethylene (PE) Lining: PE lining necessitates the insertion of a polyethylene tube into the steel pipe. Typically, the tube is heat fused or mechanically connected to the steel pipe, resulting in a seamless and corrosion-resistant lining. PE lining is commonly employed in gas transmission and distribution pipelines. 3. Epoxy Lining: Epoxy lining involves the application of an epoxy resin onto the inner surface of the steel pipe. Epoxy coatings exhibit exceptional resistance to corrosion, abrasion, and chemicals, thereby making them suitable for a variety of applications such as oil and gas pipelines, water treatment, and industrial processes. 4. Trenchless Pipe Lining: This method serves to rehabilitate existing steel pipes without the requirement of excavation. It encompasses the insertion of a liner or resin-coated fabric into the existing pipe, which is subsequently inflated and cured to form a new lining. Trenchless pipe lining is commonly utilized for sewer and water main rehabilitation. 5. Polyurethane (PU) Lining: PU lining involves the spraying or pouring of a polyurethane coating onto the inner surface of the steel pipe. Polyurethane linings deliver excellent resistance to abrasion, impact, and chemicals, thereby suiting applications in mining, slurry pipelines, and wastewater treatment. These represent merely a few of the numerous methods accessible for lining steel pipes. The selection of a lining approach is contingent upon factors such as the intended application, the environment, and the desired level of corrosion resistance and durability.

Q: What are the safety precautions to consider when working with steel pipes?: When working with steel pipes, it is important to follow certain safety precautions to prevent accidents and injuries. Some key precautions include wearing appropriate personal protective equipment (PPE) such as gloves, safety glasses, and steel-toed boots to protect against cuts, burns, and impact injuries. It is also crucial to inspect the pipes for any defects or damage before using them and ensure they are properly supported and secured during installation to prevent them from falling or causing structural failures. Additionally, workers should be trained on safe lifting techniques to avoid strain or back injuries when handling heavy pipes. Regular maintenance and inspection of tools and equipment, as well as adherence to proper handling and storage procedures, are also essential for maintaining a safe working environment when working with steel pipes.

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