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 the construction of dams and water reservoirs?: Steel pipes find widespread application in the construction of dams and water reservoirs owing to their remarkable durability, strength, and capacity to endure heavy loads and high pressure. These pipes serve multiple indispensable functions within the realm of dam and reservoir construction. A primary utility of steel pipes in these structures lies in their capacity to transport water. They are employed to convey water from its source, such as a river or stream, to the reservoir or dam. These pipes are engineered to withstand the elevated water pressure, ensuring a consistent flow of water to the reservoir. The durability of steel pipes enables them to remain intact even in the harshest environmental conditions. In addition to water conveyance, steel pipes are also utilized for drainage purposes. They are employed to establish drainage systems that help regulate the water level within the reservoir or dam. These pipes are strategically positioned to control the water flow and prevent potential flooding or overflow. Steel pipes are also integrated into the construction of spillways and outlets in dams and reservoirs. Spillways are designed to release excess water from the reservoir during heavy rainfall or when the water level exceeds predetermined thresholds. Steel pipes are employed in crafting these spillways to provide a controlled pathway for water discharge, thus averting any harm to the dam or surrounding areas. Moreover, steel pipes are employed in the construction of penstocks, which are large conduits that transport water from the reservoir to turbines in hydropower plants. The pressure generated by the water within these pipes propels the turbines, facilitating electricity generation. The robustness and durability of steel pipes are vital in ensuring the smooth and efficient operation of hydropower plants. All in all, steel pipes occupy an indispensable role in the construction of dams and water reservoirs. Their durability, strength, and ability to withstand high pressure render them an ideal choice for various aspects of these structures, including water transportation, drainage systems, spillways, and penstocks.

Q: What are the lengths of scaffold steel tubes?: Scaffold tubes are our name for materials used to build scaffolding, because most scaffolding uses tubular bamboo or steel tubing. Bamboo and other bamboo is for a long time in the use of the scaffolding tube, but due to lack of safety and durability, now only in rural and urban area construction is lagging behind some of the home building small building has been used. The modernization construction, the most commonly used type of scaffolding pipe is steel pipe, the scaffolding should not only meet the demand of workers, but also to meet the characteristics of scaffolding firm and durable, so tough hard steel is the best choice. The selected steel pipe generally requires smooth surface, no cracks, no bending, no rust, and meet the relevant national standards.

Q: What is the difference between internal coating and external lining of steel pipes?: The main difference between internal coating and external lining of steel pipes lies in their purpose and location. Internal coating refers to the application of protective materials on the inner surface of the steel pipe, primarily to prevent corrosion, improve flow efficiency, and maintain the quality of transported fluids. On the other hand, external lining involves applying protective materials to the outer surface of the steel pipe, mainly for corrosion resistance, insulation, and protection against external elements. Therefore, while internal coating focuses on the interior protection and performance of the pipe, external lining shields the pipe from environmental factors and external damage.

Q: What are the different methods of coating steel pipes for insulation?: Insulating steel pipes can be achieved through various methods, each with its own pros and cons. 1. One method involves applying a layer of thermal insulation material, like mineral wool or foam, onto the steel pipes. This helps minimize heat transfer and energy loss. While these coatings are easy to apply and offer excellent insulation properties, they are prone to degradation over time and require regular maintenance and replacement. 2. Another approach is to coat the steel pipes with materials that protect against corrosion, such as epoxy or polyethylene. These coatings act as a barrier, shielding the pipes from moisture, chemicals, and other corrosive elements. They are durable and long-lasting, providing effective protection. However, they may not offer significant thermal insulation. 3. Fusion-bonded epoxy (FBE) coating is a popular method that combines both insulation and corrosion protection. It involves applying a layer of epoxy powder to the pipes and heating it to create a strong bond. FBE coatings offer excellent adhesion, corrosion resistance, and some thermal insulation properties. They are commonly used in oil and gas pipelines, enduring harsh environments and high temperatures. 4. Polyurethane foam is often used as an insulation coating for steel pipes. It is applied by spraying or injecting the foam onto the pipe surface, where it expands and hardens, forming a protective layer. Polyurethane foam coatings provide exceptional thermal insulation and can be applied to pipes of different shapes and sizes. However, they require specialized equipment and expertise and may be susceptible to physical damage or moisture absorption if not properly sealed. 5. Ceramic coatings offer yet another option for insulating steel pipes. These coatings are typically applied through a thermal spray process, creating a layer of ceramic material on the pipe surface. Ceramic coatings provide insulation against high temperatures, corrosion resistance, and thermal shock protection. They are commonly used in industries like power generation and aerospace, where extreme temperature conditions are present. However, ceramic coatings can be costly and require specialized equipment and expertise for application.

Q: Can steel pipes be used for transporting hazardous materials?: Yes, steel pipes can be used for transporting hazardous materials. Steel is highly durable and can withstand the pressure and temperature requirements of hazardous material transportation. Additionally, steel pipes can provide a reliable barrier against leaks and spills, minimizing the risk of environmental contamination. However, it is essential to consider the specific properties and compatibility of the hazardous material being transported to ensure the steel pipes are suitable for the task.

Q: Can steel pipes be used for the construction of tunnels?: Yes, steel pipes can be used for the construction of tunnels. Steel pipes are often used as structural elements for tunnel construction due to their strength, durability, and resistance to corrosion. They can be used for various purposes such as tunnel lining, ventilation systems, and water drainage. Steel pipes offer the advantage of being able to withstand high loads and pressures, making them suitable for tunnel construction in different geological conditions.

Q: Can galvanized pipe be welded with seamless steel tube? What should I do to connect?: See the galvanized pipe and seamless steel pipe steel that differences in how if the difference is too large then the steel used for two kinds of materials for welding requirements is not the same, do not recommend direct welding, low pressure can be used in high voltage wire, welding on both sides of the same material flange with flange connection.

Q: What is the difference between schedule 10 and schedule 40 steel pipes?: Schedule 10 and schedule 40 steel pipes differ in terms of their wall thickness. Schedule 10 pipes have a thinner wall, making them suitable for low-pressure applications, while schedule 40 pipes have a thicker wall, making them more appropriate for high-pressure applications.

Q: What are the different types of steel pipe coatings?: There are several different types of steel pipe coatings, including epoxy coatings, polyethylene coatings, zinc coatings, and galvanized coatings. These coatings are applied to steel pipes to protect them from corrosion and extend their lifespan.

Q: How are steel pipes protected against electromagnetic interference?: Steel pipes can be protected against electromagnetic interference by applying a layer of insulating material around the pipes or by utilizing electromagnetic shielding techniques such as wrapping the pipes with conductive materials. Additionally, grounding the pipes and implementing proper grounding practices can help minimize the impact of electromagnetic interference.

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