Rectangular Hollow Section Tube

Ref Price:

Loading Port:: China Main Port

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: -

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

You Might Also Like

Seamless Steel Tubes For Elevated Temperatures

ASTM 53 ERW welded pipes--Tube and Pipe

Oil Tubing / Petroleum Pipe

Hot-rolled seamless steel tubes for hydraulic pillar service

Seamless Steel Pipe of Top Supplier

Seamless pipe ASTM A53/ASTM A 106/API 5L

Seamless black steel pipe API,GB,ASTM,ASME,DIN

Hot Dipped or Pre-galvanized Galvanized Pipe America Standard A53 Q195

Product Name	rectangular hollow section/ RHS
Size	Size:	1010--500500mm
	Thickness:	0.45--16mm
	Length:	3-12m
Steel Grade	Q195,Q215,Q235,Q345,16Mn, 20#
Standard	ASTM A500,EN10219,GB/T6728,GB/T6725,JIS G3466
Usage	1. For Structure, Airport, Railway 2. Construction and so on.
Ends	Plain end or By Your Choice
Surface	Bared Or With Oiled Or Galvanized
Technique	ERW ,Hot Rolled and Cold Rolled
Section Shape	Rectangular
Inspection	With Hydraulic Testing, Eddy Current , Infrared Test
Package	Bags, Bundle, In Bulk, Containers
MOQ	20 Metric Ton / Can Be Negotiated
Supply Ability	15,000 Metric Ton/Month
Date of Delivery	7 days(Qty within 1000 Metric Ton) or According To The Quantity
Port of Shipment	Tianjin, China
Payment	L/C T/T

Q: What is the difference between carbon steel pipes and stainless steel pipes?: The main difference between carbon steel pipes and stainless steel pipes lies in their composition and properties. Carbon steel pipes are primarily made of iron and carbon, with small amounts of other elements. They are less expensive, have higher tensile strength, and are suitable for transporting fluids and gases in various industries. On the other hand, stainless steel pipes contain iron, chromium, and other alloying elements. They are more expensive, have higher corrosion resistance, and are commonly used in applications where hygiene, durability, and aesthetic appeal are essential, such as in the food, pharmaceutical, and architectural industries.

Q: How do you calculate the pipe flow velocity coefficient for steel pipes?: The Manning's equation is employed to determine the flow velocity in open channels and pipes, taking into consideration the hydraulic radius, slope, and roughness coefficient of the pipe. By applying this equation, the pipe flow velocity coefficient for steel pipes can be calculated. To ascertain the pipe flow velocity coefficient for steel pipes, the following steps should be followed: 1. Calculate the hydraulic radius (R) of the steel pipe by dividing the cross-sectional area (A) of the pipe by the wetted perimeter (P). The formula to use is R = A/P. 2. Determine the slope (S) of the pipe, which is the change in elevation divided by the length of the pipe. Usually, it is expressed as a ratio or a percentage. 3. Obtain the roughness coefficient (n) of the steel pipe, representing the internal roughness of the pipe. This information can be found in literature or pipe manufacturer specifications, often given in terms of the Manning's roughness coefficient. 4. Insert 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 signifies the flow velocity. 5. Solve the equation for V to calculate the pipe flow velocity coefficient for steel pipes. It is crucial to note that the calculated velocity coefficient may differ depending on specific pipe dimensions, flow conditions, and other factors. Therefore, it is advisable to consult relevant engineering standards or seek guidance from a hydraulic engineer to ensure accurate and reliable calculations for specific applications.

Q: ASME seamless tube how to express, what is the form, I did not find on the ASME, thank God!: Welded and seamless pipe standards are ASME B31.10, no go, if you want to force a seamless tube, the request can be seamless for seamless meaning.In addition to that, the cost and difficulty of manufacturing welded pipe is higher than that of seamless tube.

Q: How much is the wall thickness standard of building 48?: According to the "construction of fastener type steel pipe scaffold safety technical specifications JGJ130-2011" stipulates that the specification of steel pipe should be Phi 48.3 * 3.6, that is, wall thickness is 3.6mm.

Q: What are the different types of steel pipes available?: In the market, one can find a variety of steel pipes catering to specific needs in different applications. Some commonly used steel pipes include: 1. Carbon Steel Pipes: These pipes, primarily composed of carbon, are the most prevalent type. They are utilized in a wide range of applications such as fluid and gas transportation, structural purposes, and plumbing. 2. Stainless Steel Pipes: These pipes are manufactured using an alloy that contains a substantial amount of chromium, providing excellent resistance to corrosion. Industries like oil and gas, chemical processing, and food processing rely heavily on stainless steel pipes. 3. Alloy Steel Pipes: These pipes, as the name suggests, consist of an alloy containing a combination of various elements like chromium, molybdenum, and nickel. They offer improved strength, durability, and resistance to high temperatures, making them suitable for applications in power plants, refineries, and petrochemical industries. 4. Galvanized Steel Pipes: To safeguard against corrosion, these pipes are coated with a layer of zinc. Due to their exceptional rust resistance and long-lasting durability, galvanized steel pipes find common usage in plumbing systems, water supply lines, and outdoor structures. 5. Seamless Steel Pipes: These pipes are manufactured without any welded seams and are often preferred for applications requiring high pressure, high temperature, or a smooth inner surface. Industries such as oil and gas, automotive, and aerospace frequently utilize seamless steel pipes. 6. Welded Steel Pipes: These pipes are created by welding two steel pieces together. They are available in various shapes and sizes and commonly used in construction, water supply systems, and general engineering applications. 7. ERW (Electric Resistance Welded) Steel Pipes: These pipes are produced by passing a high-frequency electric current through a steel strip and then welding the edges together. ERW steel pipes find wide usage in oil and gas transportation, structural applications, and fencing. 8. LSAW (Longitudinal Submerged Arc Welded) Steel Pipes: These pipes are formed by bending and welding a steel plate into a cylindrical shape. LSAW steel pipes are commonly employed in large-scale infrastructure projects such as oil and gas pipelines and bridge construction. To summarize, the market offers a variety of steel pipes, including carbon steel, stainless steel, alloy steel, galvanized steel, seamless steel, welded steel, ERW steel, and LSAW steel pipes. The choice of steel pipe type depends on specific application requirements, such as resistance to corrosion, strength, temperature, and pressure resistance.

Q: How are steel pipes used in power plants?: Steel pipes are extensively used in power plants for various applications. One of the primary uses of steel pipes in power plants is for transporting fluids and gases. These pipes are used to carry water, steam, and fuel (such as oil or gas) throughout the power plant. The high strength and durability of steel make it an ideal material for these pipes, as they can withstand high pressure and temperature conditions. Steel pipes are also used in power plant boilers. They form an integral part of the boiler system, where they carry hot gases and steam. These pipes are designed to withstand extreme heat and pressure, ensuring the safe and efficient operation of the boiler. Additionally, steel pipes are used in the cooling systems of power plants. Water is circulated through these pipes to cool down the equipment, such as turbines and condensers. The pipes are designed to withstand corrosion from the cooling water and maintain the required flow rate and pressure. Furthermore, steel pipes are used in the construction of power plant structures. They are used for the fabrication of support structures, such as frames, platforms, and walkways. Steel pipes provide excellent structural integrity and can withstand heavy loads, making them suitable for such applications. In summary, steel pipes play a vital role in power plants by transporting fluids and gases, serving as a part of the boiler system, facilitating cooling processes, and providing structural support. Their strength, durability, and resistance to extreme conditions make them an essential component in the operation of power plants.

Q: How do you calculate the maximum allowable deflection for steel pipes?: To calculate the maximum allowable deflection for steel pipes, you need to consider various factors such as the pipe diameter, material properties, support conditions, and the desired level of deflection. The maximum allowable deflection is typically determined based on industry standards and codes. One commonly used method for calculating the maximum allowable deflection is based on the pipe's span-to-diameter ratio (L/D ratio). The L/D ratio is the ratio of the pipe's span (distance between supports) to its diameter. Several industry codes provide guidelines on the maximum allowable deflection based on the L/D ratio. For example, the American Society of Mechanical Engineers (ASME) B31.1 Power Piping Code suggests that for carbon steel pipes, the maximum allowable deflection should not exceed 3% of the pipe's span for an L/D ratio of 100 or less. However, for higher L/D ratios, the deflection limit decreases, ensuring the pipe's stability and structural integrity. To calculate the maximum allowable deflection using the L/D ratio method, you would first determine the L/D ratio based on the span and diameter of the pipe. Then, referring to the applicable code or standard, you can find the corresponding maximum allowable deflection limit. It is important to note that other factors such as the pipe material's yield strength, wall thickness, and the type of loading (e.g., dead load, live load) also influence the maximum allowable deflection. Therefore, it is crucial to consult the relevant industry standards, codes, and engineering principles to accurately calculate the maximum allowable deflection for steel pipes.

Q: What are the different types of coatings used for external protection of steel pipes?: There are several types of coatings commonly used for the external protection of steel pipes, including fusion bonded epoxy (FBE) coatings, three-layer polyethylene (3LPE) coatings, three-layer polypropylene (3LPP) coatings, and coal tar enamel (CTE) coatings. Each of these coatings provide different levels of corrosion resistance and durability, depending on the specific requirements of the project or application.

Q: What are the common standards for manufacturing steel pipes?: The common standards for manufacturing steel pipes include specifications set by international organizations such as the American Society for Testing and Materials (ASTM), the International Organization for Standardization (ISO), and the European Committee for Standardization (EN). These standards cover aspects such as material composition, dimensions, mechanical properties, and testing methods to ensure quality and compatibility in steel pipe production.

Q: What are the different types of steel pipe fittings for chemical processing plants?: There are several types of steel pipe fittings commonly used in chemical processing plants, including elbows, tees, reducers, flanges, and valves. Elbows are used to change the direction of the flow, tees are used to combine or split the flow, reducers are used to connect pipes with different diameters, flanges are used for connecting pipes and valves, and valves control the flow of fluid within the system.

Send your message to us

*Email

*TEL

*Quantity

*Unit