ASTM A500/JIS/EN Rectangular hollow section/RHS

Ref Price:

Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 10 m.t.

Supply Capability:: 5000 m.t./month

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

ALL kinds of Seamless steel pipe higher quality 20# 16mn

Square tube and rectangular tube for building structure

Pre-galvanized Pipe America Standard Q235 A500 150g Hot Dipped or Galvanized Pipe

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 are the safety regulations for working with steel pipes?: The safety regulations for working with steel pipes may vary depending on the specific circumstances and location, but some common safety measures include wearing appropriate personal protective equipment (PPE) such as gloves, safety glasses, and steel-toed boots, ensuring proper handling techniques to prevent injuries, using proper lifting equipment to prevent strain or back injuries, implementing proper ventilation and respiratory protection when working in confined or poorly ventilated spaces, and following proper procedures for welding, cutting, or bending steel pipes to minimize the risk of fire or explosions. It is essential to consult and adhere to local safety regulations and guidelines to ensure a safe working environment when dealing with steel pipes.

Q: What are the different types of steel pipe connections for oil and gas pipelines?: The different types of steel pipe connections for oil and gas pipelines include threaded connections, welded connections, and flanged connections. Threaded connections involve screwing the pipes together using a threaded end, which ensures a secure fit. Welded connections involve permanently joining the pipes together using welding techniques such as butt welding or socket welding. Flanged connections involve attaching flanges to the ends of the pipes and bolting them together, providing a strong and leak-proof connection.

Q: How are steel pipes used in firefighting systems?: Steel pipes are used in firefighting systems as a crucial component for delivering water and extinguishing agents to the affected areas. They are used to transport pressurized water from the water source to the fire hydrants, sprinkler systems, and fire hoses. Steel pipes are preferred for their durability, strength, and resistance to heat and corrosion, making them ideal for handling high-pressure water flow during firefighting operations.

Q: How long are the seamless tubes? Are they six meters long?: The length of the seamless tube is 3000~12000mm, including 6 meters.

Q: How do you calculate the flow velocity in a steel pipe?: To calculate the flow velocity in a steel pipe, you need to consider the principles of fluid mechanics and apply relevant equations. The most commonly used equation to calculate flow velocity is the Bernoulli equation, which relates the pressure, velocity, and elevation of a fluid. First, you need to determine the volumetric flow rate (Q) of the fluid passing through the pipe. This can be done by measuring the mass flow rate (m) or the volumetric flow rate directly using a flow meter. Once you have the volumetric flow rate, you can proceed with calculating the flow velocity (V). The flow velocity (V) is obtained by dividing the volumetric flow rate (Q) by the cross-sectional area (A) of the pipe. The cross-sectional area of the pipe can be determined using the formula A = πr^2, where r is the radius of the pipe. Therefore, the formula to calculate the flow velocity (V) in a steel pipe is: V = Q / A Keep in mind that this calculation assumes an ideal flow condition and does not account for any frictional losses or other factors that may affect the flow. In real-world scenarios, it is essential to consider additional factors like pipe roughness, fluid viscosity, and pipe diameter to obtain a more accurate estimation of flow velocity.

Q: What are the advantages of using steel pipes?: There are several advantages of using steel pipes. Firstly, steel pipes are extremely durable and have a high resistance to corrosion, making them suitable for various applications in different environments. Secondly, steel pipes have excellent strength and can withstand high pressure, making them ideal for transporting fluids and gases over long distances. Additionally, steel pipes have a smooth interior surface, which allows for efficient flow and minimizes the risk of clogs or blockages. Lastly, steel pipes are versatile and can be easily fabricated and customized to meet specific project requirements.

Q: Is the diameter of the steel tube indicated by the outer diameter by the wall thickness or by the inside diameter by the wall thickness?: For seamless steel pipes or nonferrous metal pipes, the outer diameter * wall thickness shall be marked".For example, 108 x 4 phi, Phi can be omitted. Some steel tubes in China, ISO and Japan adopt wall thickness to indicate the thickness of steel pipe. The method for the specification of such steel tubes is pipe outer diameter * wall thickness. For example, Phi 60.5 * 3.8.

Q: Can galvanized pipe be welded with seamless steel tube? What should I do to connect?: To look at the use of concrete after welding, if the stress is relatively large and thin galvanized pipe wall is recommended to not use welding, if the requirement is not high Po mouth welding should be welding depends on galvanized pipe material selection electrode generally no sealing material are 20

Q: What are the different pressure ratings for steel pipes?: Steel pipes have varying pressure ratings to indicate their maximum safe handling pressure. The pressure ratings of steel pipes can differ based on factors like pipe diameter, wall thickness, and material grade. Common pressure ratings for steel pipes are as follows: 1. Schedule 40: This is the standard pressure rating for general applications. It is suitable for low to medium pressure systems, with a maximum working pressure of 150 psi. 2. Schedule 80: Used for higher pressure requirements, it has a thicker wall thickness compared to Schedule 40, enabling it to handle working pressures of up to 300 psi. 3. Schedule 160: This heavy-duty pressure rating is for high-pressure applications. It has an even thicker wall thickness than Schedule 80 and can handle working pressures of up to 500 psi. In addition to these standard pressure ratings, there are specialized steel pipes available with higher pressure ratings, such as Extra Strong (XS) and Double Extra Strong (XXS). These pipes are designed for extremely high-pressure systems and have thicker walls than Schedule 160. It's important to note that the pressure ratings mentioned above specifically apply to steel pipes. Pressure ratings may vary for pipes made from other materials, such as copper or PVC. When selecting a steel pipe, it is crucial to consider the required pressure rating based on the specific application and system requirements to ensure safe and efficient operation.

Q: What are the different methods of insulating steel pipes?: There exists a variety of methods for insulating steel pipes, depending on the specific needs and requirements of the application. Some commonly utilized methods include: 1. Insulation wraps: By enveloping the steel pipes with insulating materials such as fiberglass, mineral wool, or foam insulation and securing them tightly with adhesive or tape, insulation wraps offer a cost-effective and straightforward installation option favored by many. 2. Insulation coatings: Applying a layer of insulating material directly onto the surface of the steel pipe, insulation coatings made from materials like epoxy, polyurethane, or polyethylene protect against corrosion and temperature fluctuations, making them ideal for harsh environments. 3. Insulation jackets: Utilizing pre-fabricated insulation jackets designed to fit over the steel pipes, this method combines insulation materials with a weatherproof outer layer. Insulation jackets are commonly employed for outdoor or exposed pipelines, providing excellent insulation and protection against external elements. 4. Insulation foam: Injecting foam insulation into the space between the steel pipe and an outer casing, the foam expands and hardens to create a sealed and well-insulated layer. Apart from preventing heat loss or gain, foam insulation also offers remarkable soundproofing properties. 5. Insulation tapes: Specially designed insulation tapes made from PVC or rubber, possessing good insulating properties, are wrapped around smaller pipes or joints. This flexible and easy-to-apply solution is commonly employed. When selecting the appropriate method to insulate steel pipes, it is crucial to consider factors such as operating temperature, environmental conditions, and specific application requirements. Seeking advice from a professional or insulation specialist can assist in determining the most suitable insulation method for individual needs.

Send your message to us

*Email

*TEL

*Quantity

*Unit