High Quality Hollow Section-Square Pipes

High Quality Hollow Section-Square Pipes System 1

High Quality Hollow Section-Square Pipes

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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Product Description:

1. Specification of ERW Welded Pipes-Square Tube and Pipe for Furniture ASTM A53 Hollow Section

1) Application: Greenhouse pipes, scaffolding pipes, transportation the ocean oil and gas, mechanical tube of ocean platform, power station, chemical industry and building, construction foundation piles, steel structure building, for low-pressur fluid service, steel structure bridges etc.

2) Standard: ASTM A53, BS1387, GB/T9711, GB/T39013

3) Steel Grade: Q195/Q215/Q235/Q345

2. Sizes of ERW Welded Pipe- Square Tube and Pipe for Furniture ASTM A53 Hollow Section

Outer Diameter: 1/2"x1/2"-16"x16''

Thickness:4.0-12.75mm

Length: As costumer's requirement

2. Packing & Delivery

Packing Detail: Packing in bundle with steel strips;with seaworthy package at the end; could be done with your requirement

Delivery Time: Within 30 Days after the reception of prepayment or L/C

3. Data Sheet

Standard: ASTM A53

Mechanical Properties

Standard	Grade	（MPa）	（MPa）
Standard	Grade	Yield strength	Tensile Strength
ASTM A53M	A	205	330
ASTM A53M	B	240	415

Chemical Composition(%)

Standard	Grade	C	Mn	P	S	V	Ni	Cu	Cr	Mo
Standard	Grade	Max	Max	Max	Max	Max	Max	Max	Max	Max
ASTM A53M	A	0.25	0.95	0.05	0.045	0.08	0.4	0.5	0.4	0.15
ASTM A53M	B	0.30	1.20	0.05	0.045	0.08	0.4	0.5	0.4	0.15

Q:What is the abrasion resistance of steel pipes?: The abrasion resistance of steel pipes is relatively high. Steel is known for its strength and durability, making it resistant to wear and tear caused by friction and impact. This characteristic makes steel pipes an excellent choice for industries and applications where abrasion is a common concern, such as mining, oil and gas, and transportation of abrasive materials. Additionally, steel pipes can be further enhanced with coatings or linings to provide even greater abrasion resistance, depending on the specific requirements of the application. Overall, steel pipes offer a reliable and long-lasting solution for handling abrasive substances and environments.

Q:Can steel pipes be used for drinking water supply?: Yes, steel pipes can be used for drinking water supply. Steel pipes are commonly used in water distribution systems due to their strength, durability, and ability to withstand high pressures. However, it is important to note that the steel used in these pipes must be specifically designed and approved for potable water applications to ensure that it does not contaminate the water with any harmful substances. Additionally, proper maintenance and regular inspections are necessary to prevent the formation of rust or corrosion, which can affect the quality of the water.

Q:How do you calculate the pipe pressure loss coefficient for steel pipes?: To calculate the pipe pressure loss coefficient for steel pipes, you can use various empirical equations or reference charts specific to the pipe type and size. These equations and charts take into account factors such as pipe roughness, Reynolds number, and flow rate to determine the pressure loss coefficient. It is important to consult relevant engineering references or software to accurately calculate this coefficient for steel pipes.

Q:Can steel pipes be used for wastewater disposal?: Indeed, wastewater disposal can be accomplished using steel pipes. Owing to their robustness, strength, and corrosion resistance, steel pipes find widespread application in wastewater systems. They are capable of withstanding the substantial pressure and flow rates commonly encountered in wastewater scenarios, efficiently conveying it to treatment plants or other disposal sites. Moreover, steel pipes can be enhanced with coatings or linings that offer additional safeguard against corrosion or chemical reactions with the wastewater, further enhancing their durability and efficacy in wastewater disposal.

Q:How do you prevent steel pipes from freezing in cold climates?: One way to prevent steel pipes from freezing in cold climates is by insulating them. Insulation materials such as foam or fiberglass can be wrapped around the pipes to prevent heat loss and keep them at a stable temperature. Additionally, using heat tape or cables can provide an extra layer of protection by applying low-level heat to the pipes. It is also important to ensure that pipes are properly sealed and any cracks or gaps are sealed to prevent cold air from entering and freezing the pipes.

Q:Can steel pipes be used for paper mills?: Yes, steel pipes can be used for paper mills. Steel pipes are widely used in various industries, including paper mills, due to their durability, strength, and resistance to corrosion. These pipes are commonly used for transporting water, chemicals, steam, and other fluids within the paper mill facilities.

Q:How are steel pipes protected against external damage?: Steel pipes are protected against external damage through various methods such as coatings, wraps, and cathodic protection. These protective measures help prevent corrosion, abrasion, and other forms of external damage, ensuring the durability and longevity of the pipes.

Q:What are the different types of steel pipe coatings for corrosive environments?: There are several types of steel pipe coatings specifically designed for corrosive environments. Some common options include fusion-bonded epoxy (FBE) coatings, liquid epoxy coatings, polyethylene (PE) coatings, and polyurethane (PU) coatings. These coatings provide a protective layer to prevent corrosion and extend the lifespan of the steel pipes in various corrosive conditions.

Q:How do you calculate the maximum allowable deflection for steel pipes?: When calculating the maximum allowable deflection for steel pipes, various factors must be taken into account. These factors include the pipe diameter, material properties, support conditions, and desired level of deflection. The maximum allowable deflection is typically determined according to industry standards and codes. One popular method for calculating the maximum allowable deflection is based on the pipe's span-to-diameter ratio, also known as the L/D ratio. The L/D ratio is calculated by dividing the pipe's span (the distance between supports) by its diameter. Numerous industry codes provide guidelines for the maximum allowable deflection based on the L/D ratio. For instance, 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 when the L/D ratio is 100 or less. However, as the L/D ratio increases, the deflection limit decreases to ensure the pipe's stability and structural integrity. To calculate the maximum allowable deflection using the L/D ratio method, you first need to determine the L/D ratio based on the pipe's span and diameter. Then, you can refer to the applicable code or standard to find the corresponding maximum allowable deflection limit. It's 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:How are steel pipes used in the manufacturing of automotive exhaust systems?: Steel pipes are commonly used in the manufacturing of automotive exhaust systems due to their durability, heat resistance, and ability to withstand corrosive gases. These pipes are utilized to transport and direct the exhaust gases from the engine to the rear of the vehicle. They are often bent and welded to create a complex system of pipes, mufflers, and catalytic converters, ensuring the efficient flow and treatment of exhaust gases while reducing noise levels.

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