Construction Circle Steel Pipe Q235 Grade

Construction Circle Steel Pipe Q235 Grade

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 300 m.t.

Supply Capability:: 1000 m.t./month

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Construction Circle Steel Pipe Q235 Grade

Description for Construction Pipe :

Type	Galvanized pipe
Steel Grade	Q345,Q195,215,Q235,
Steel Grade
Size	DIA 13-25.4mm, 18-25.4mm,25.4-34mm,34-50.8mm,50.8-79.2mm
Thickness	0.5-1.5mm,1.5-2.0mm,0.7-2.0mm,0.8-3.0mm,1.0-3.0mm
Application	Building/project construction
Packing	5.5mm-10mm:packing In coil. 10mm-32mm:in bundle.
MOQ	300tons ( trial order 100tons acceptable ).
Capacity	15000tons /month.
Delivery Time	15days after the order confirmation .
Payment	T/T , West Union , Cash , L/C.
Trade Terms	FOB, CFR, CIF ,EXW
Trans term	FIO , FILO , FLT

Datas Chart for Galvanized Pipe :

Content	C%	Mn%	Si%	P%	S%	V%	Ceq%
HRB335	0.17-0.25	1.00-1.60	0.40-0.80	≤0.045	≤0.045		≤0.52
HRB400	0.20-0.25	1.30-1.60	0.40-0.80	≤0.035	≤0.035	0.05-0.08	≤0.54
HRB500	0.25	1.6	0.80	≤0.045	≤0.045		≤0.55
HRB500E	0.20-0.24	1.20-1.50	0.40-0.65	≤0.045	≤0.045	0.050-0.120	≤0.55

Main Structure of Galvanized Steel Circle Pipe

l Mechanics Performance

Grade	Technical data of the original chemical composition(%)
	C	Mn	Si		S	P	Ceq
HRB500	≤0.25	≤1.60	≤0.80		≤0.045	≤0.045	≤ 0.55
	Mechanical Characterics
	Yield Strength (N/cm2)			Tensile Strength (N/cm2)		Elongation (%)
	≥500			≥630		≥14

FAQ:

Why should you choose us:

Stable quality ----continous casting hot rolled production techenic, strictly quality control system.
Lower price -------Not the cheapest but the lowest price at the same quality .
Good service -----Satisfactory service within 24hours.
Delivery time ------15-25days for the mass production .
Discount---------------discount base on monthly large quantity purchase in long term.

Picture:

Construction Circle Steel Pipe Q235 Grade

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Q: Can steel pipes be used for the construction of high-rise buildings?: Yes, steel pipes can be used for the construction of high-rise buildings. Steel pipes offer several advantages such as high strength, durability, and resistance to fire, making them a suitable choice for supporting the structural load and ensuring the stability of tall structures. Additionally, steel pipes can be easily fabricated and installed, providing flexibility in design and construction.

Q: What is the primary purpose of steel pipes?: The primary purpose of steel pipes is to transport various fluids and gases over long distances, ensuring a reliable and efficient means of conveyance in industries such as oil and gas, water supply, construction, and infrastructure.

Q: How are steel pipes protected against galvanic corrosion?: Steel pipes are protected against galvanic corrosion through the use of sacrificial anodes, coatings, or the application of electrical currents. These methods create a barrier or redirect the corrosion process, preventing the steel pipes from deteriorating due to galvanic reactions.

Q: What is the flexibility of steel pipes?: Steel pipes possess exceptional flexibility, rendering them highly versatile and suitable for a wide array of applications. Their flexibility is derived from the inherent properties of steel, such as its high tensile strength and ductility, enabling them to bend and endure various forms of stress without breaking or deforming. The structural integrity of steel pipes remains intact even when bent or shaped into different forms. This facilitates simpler installation and routing around obstacles, making them more adaptable for intricate plumbing or piping systems. Furthermore, the flexibility of steel pipes allows them to withstand external forces like ground movements or temperature fluctuations without sustaining significant damage. Moreover, the flexibility of steel pipes makes them ideal for applications that involve dynamic movement or expansion. In the case of oil and gas pipelines or heating and cooling systems, where temperature variations can lead to expansion and contraction, steel pipes can accommodate these changes without causing leaks or failures. Additionally, the flexibility of steel pipes contributes to their durability and longevity. The ability to endure bending and stress prevents the formation of cracks or fractures that could result in leaks or structural failures. This characteristic establishes steel pipes as a dependable choice for demanding environments, including high-pressure systems or corrosive conditions. To sum up, the flexibility of steel pipes is a crucial attribute that allows for effortless installation, adaptability to diverse conditions, and long-term reliability. Due to their remarkable flexibility, steel pipes are extensively preferred in numerous industries and applications where strength, durability, and versatility are paramount.

Q: How do you calculate the pressure drop in a steel pipe?: To calculate the pressure drop in a steel pipe, you need to consider several factors such as the diameter and length of the pipe, the flow rate of the fluid, and the properties of the fluid itself. One commonly used equation to calculate the pressure drop in a pipe is the Darcy-Weisbach equation, which is given as: ΔP = (f * (L / D) * (ρ * V^2)) / (2 * D) Where: ΔP is the pressure drop in the pipe f is the Darcy friction factor, which depends on the pipe roughness and Reynolds number L is the length of the pipe D is the diameter of the pipe ρ is the density of the fluid V is the velocity of the fluid To calculate the Darcy friction factor, you can use different methods depending on the flow regime. For laminar flow, you can use the formula f = 16 / Re, where Re is the Reynolds number. For turbulent flow, there are several methods to determine the friction factor, such as the Colebrook equation or the Moody chart. It is important to note that the properties of the fluid, such as its viscosity and density, may vary with temperature and pressure. Therefore, it is necessary to consider these variations when calculating the pressure drop. Additionally, it is worth mentioning that there are other factors that can affect the pressure drop in a steel pipe, such as fittings, valves, and elbows. These factors introduce additional losses, which can be accounted for by using appropriate correction factors or by directly measuring the pressure drop across these components. Overall, calculating the pressure drop in a steel pipe involves using the appropriate equations, considering the properties of the fluid, and accounting for the various factors that may affect the flow. It is recommended to consult relevant engineering handbooks or utilize specialized software for accurate calculations.

Q: Seamless steel tube with the tube with what is the difference?: Seamed tube can withstand the maximum pressure is generally less than 20 kg, which is the most secure use. It is generally used in water, gas, compressed air and other low-pressure fluid;

Q: What is the thickness of steel pipes?: The thickness of steel pipes varies depending on the specific application and type of pipe used. Typically, steel pipes are available in various thicknesses, measured by their schedule or wall thickness. Schedule 40 is the most common schedule for steel pipes, known for its standard wall thickness. However, for applications demanding higher strength or pressure resistance, thicker pipes with higher schedules like Schedule 80 or Schedule 160 are also available. Moreover, the thickness of steel pipes can be tailored to meet specific project requirements.

Q: What does "buried steel pipe" 6*2SC100 mean?: The embedded steel pipe 6*2SC100 refers to a welded steel pipe with 2 pipe thicknesses of 6mm and a diameter of 100mm. SC pipe means welded steel pipe. Embedment means pre installation (burial).

Q: What are the different types of supports used for underground steel pipes?: There are several types of supports used for underground steel pipes, including concrete encasement, pipe saddles, bell and spigot joints, thrust blocks, and hangers. These supports help to distribute the weight of the pipe, provide stability, and prevent excessive movement or damage.

Q: How are steel pipes used in the manufacturing of pulp and paper mills?: Steel pipes are commonly used in the manufacturing of pulp and paper mills for various purposes such as transporting water, steam, chemicals, and other fluids throughout the facility. These pipes provide a durable and reliable solution for conveying materials and ensuring efficient operations in the pulp and paper industry.

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