• High quality Roller pipes from China System 1
High quality Roller pipes from China

High quality Roller pipes from China

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Loading Port:
China Main Port
Payment Terms:
TT OR LC
Min Order Qty:
-
Supply Capability:
-

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Outside diameter

1/2”-12

Wall Thickness

1.0 -12mm

SCH40,60,80, etc.

Tolerance

±5%

Material

Q195,Q215,Q235,Q345

Quality grade

First grade

Section Shape

Round

Surface Treatment

Hot rolled and ERW

Technique

Hot rolled

Ends

Threaded Ends, Grooved Ends

Length

Less than 12m

MOQ

10 Metric Ton or as your request if normal size

Deliver Time

Stock

Package

Nude pipe in bundle or as your request

Payment terms

T/T,L/C

Standard

GB/T3091-2008; BS1837-1985; ASTM A53/A53M-07;

ASTM A513-07; ASTM A252; JIS G3444-06; JIS G3452-2010;

EN10255; DIN2440

Main Usage

Relevant Size

1. Water Pipe

Material: Q195/Q215/Q235/Q345B

Outside Diameter: 60-273mm

2. Threaded/Screwed Pipe

Material: Q195/Q215/Q235/Q345B

Outside Diameter: 21.3-165.1mm

3. Structural Steel Pipe

Material: Q195/Q215/Q235/Q345B

Outside Diameter: 21.7-190.7mm

4. Scaffolding Pipe

Material: Q195/Q215/Q235/Q345B

Outside Diameter: 48mm

5. Straight Seam Welded Pipe

Material: Q195/Q215/Q235/Q345B

Outside Diameter: 48-273mm

6. Steel pipes with a longitudinal ERW  

Material: Q195/Q215/Q235/Q345B

Outside Diameter: 21.3-273.1mm

Standard: GB/T 3091-2008

Quality Guarantee

Certificate: ISO9001:2008 by international quality system.

Steel material and various physics and chemistry property service.

FAQ

1. How about the Delivery Time?

 The goods will be produced since we getting your deposit by T/T or Your original L/C.

 For normal size, some stocks in our factory now, we can supply once you need.

2. What kind of payment does your company support?

 T/T, 100% L/C at sight, Cash, Western Union are all accepted.

3. What is the M.O.Q?

 Min Order Quantity.

 Generally speaking, the MOQ is 10 metric ton per size,

 however, we can provide you samples for quality inspection.

4. Do you charge for the samples?

 According to our company principle, we just charge for samples, you pay for the freight charge.

 However, we will return the samples fees back to you during the next order.

5. How about your Feature and Advantage?

 Firstly, we are a 11 years factory, our price is competitive and our quality is the NO.1.  

 Then we do some special service for export: Thread, Oil Coating, Groovy,

 Standard Export Packing, Hydraulic Pressure, Automatic painting, stamping,

 Steel material and various physics and chemistry property, zinc ingot element testing service. etc.

6. How to know the Quality Guarantee:

 Visit Our factory is the best way to know each other more.

 ISO9001:2008 by international quality system Certificate and The Third Inspection can prove our quality.

 We will attach some relevant photos via email so show our factory, machine and products for you.

7. Can you tell me your main customers information?

 That is our customers privacy, we should protect their information.

 At the same time, please rest assured that your information is also safe here.


Q: How are steel pipes protected against mechanical damage during transportation?
Various measures are implemented to safeguard steel pipes against mechanical damage during transportation. One commonly used technique involves the application of protective coatings or wrapping materials, typically composed of plastic, rubber, or epoxy. These coatings serve as a physical barrier, shielding the pipes from scratches, dents, and other forms of mechanical harm. Another method involves the utilization of padding or cushioning materials, such as foam inserts or rubber gaskets. These materials are inserted inside or wrapped around the pipes, absorbing any impacts or shocks that may occur during transportation. This effectively prevents potential damage caused by vibrations or bumps. Additionally, steel pipes are frequently secured and immobilized within transportation containers through the use of straps, braces, or other securing devices. These measures ensure that the pipes remain stable and do not collide with one another, thereby minimizing the risk of mechanical harm. Furthermore, proper handling and loading techniques play a crucial role in protecting steel pipes during transportation. This involves the utilization of appropriate lifting equipment, such as cranes or forklifts, to prevent any accidental dropping or mishandling of the pipes. Moreover, pipes are often stored or stacked in a manner that minimizes the possibility of deformation or bending. Ultimately, a combination of protective coatings, cushioning materials, securement devices, and proper handling techniques are employed to ensure the safe transportation of steel pipes and maintain their optimal condition for use in various applications.
Q: How are steel pipes used in the construction of offshore platforms?
Steel pipes are used in the construction of offshore platforms for various purposes such as supporting the weight of the platform, transporting fluids (oil, gas, and water), and providing structural stability to withstand harsh environmental conditions and the weight of equipment and machinery.
Q: What is the shear strength of steel pipes?
The shear strength of steel pipes can vary depending on various factors such as the grade of steel, size and thickness of the pipe, and any additional treatments or coatings applied. Generally, the shear strength of steel pipes is high due to the inherent strength of steel, making them suitable for various structural and industrial applications.
Q: How are steel pipes tested for strength and durability?
Steel pipes are tested for strength and durability through various methods such as hydrostatic testing, non-destructive testing, and mechanical testing. Hydrostatic testing involves pressurizing the pipe with water to check for any leaks or weaknesses. Non-destructive testing techniques like ultrasonic or magnetic particle testing are used to detect any flaws or defects within the pipe. Mechanical testing involves subjecting the pipe to various loads and stresses to assess its performance and resistance to deformation. These tests ensure that steel pipes meet the required standards and are capable of withstanding the intended applications.
Q: What are the different methods of protecting steel pipes from external damage?
There are several methods of protecting steel pipes from external damage, including coating the pipes with a corrosion-resistant material such as epoxy or polyethylene, applying a layer of protective tape, installing a cathodic protection system, using concrete or rock shielding, and implementing measures to prevent soil movement or impact damage.
Q: How do you connect steel pipes together?
Steel pipes can be connected together using various methods such as welding, threading, flanges, or mechanical couplings. Welding involves fusing the ends of the pipes together using heat, while threading involves cutting grooves into the pipe ends and screwing them together. Flanges are used to connect pipes using bolts and gaskets, providing a secure and leak-proof joint. Mechanical couplings utilize compression fittings or clamps to connect pipes without the need for welding or threading. The appropriate method depends on the specific application, pipe size, and project requirements.
Q: How are steel pipes protected against UV radiation?
Steel pipes are typically protected against UV radiation through the application of specialized coatings or paints that contain UV inhibitors. These coatings form a barrier between the steel surface and the sun's UV rays, preventing degradation, discoloration, and potential structural damage caused by prolonged exposure to UV radiation.
Q: What are the common uses of steel pipes in construction?
Due to their durability and strength, steel pipes are widely used in construction for various purposes. Plumbing systems in buildings commonly rely on steel pipes, which can effectively transport water, gas, and other fluids. Their resistance to corrosion and ability to withstand high pressure make them the preferred choice over alternative materials. Steel pipes are also frequently employed for structural support in construction. They serve as columns or beams, providing buildings with structural integrity and stability. With their capacity to support heavy loads, steel pipes are highly favored in the construction industry. Bridges and highways often incorporate steel pipes into their design. They are utilized to create sturdy and long-lasting bridge supports, guardrails, and signposts. The ability of steel pipes to endure extreme weather conditions and heavy traffic makes them a reliable option for infrastructure projects. Additionally, steel pipes are indispensable for underground utilities like sewer and drainage systems. They offer a robust solution for transporting wastewater and preventing leaks. Moreover, they play a crucial role in constructing underground tunnels and pipelines. Furthermore, steel pipes find application in fencing, scaffolding, and handrails in construction. Their strength, versatility, and ability to withstand harsh environmental conditions make them a preferred choice. In summary, steel pipes are vital components in construction due to their numerous advantages. Their durability, strength, and resistance to corrosion make them a reliable choice for various applications in the construction industry.
Q: What are steel pipes made of?
Steel pipes are primarily made of steel, which is an alloy composed of iron and carbon.
Q: What are the safety precautions when working with steel pipes?
When working with steel pipes, some important safety precautions to follow include wearing appropriate personal protective equipment (PPE) such as gloves, safety glasses, and steel-toed boots to protect against potential injuries. Additionally, it is essential to ensure proper ventilation in the work area to prevent the accumulation of hazardous fumes or gases. Using the correct tools and equipment, such as pipe wrenches and clamps, and following proper lifting techniques are crucial to avoid strains or back injuries. Regular inspection and maintenance of the pipes and equipment are also necessary to prevent any potential accidents. Lastly, it is important to receive proper training and follow established safety procedures to minimize risks and promote a safe working environment.

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