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:How are steel pipes classified according to their wall thickness?: Steel pipes are classified according to their wall thickness into three categories: standard weight, extra-strong, and double extra-strong.

Q:Can steel pipes be used for structural purposes?: Yes, steel pipes can be used for structural purposes.

Q:What are the different types of coatings used on steel pipes?: Steel pipes can be coated with various types of coatings to increase their durability and protect them from corrosion. Some commonly used coatings are: 1. Fusion-Bonded Epoxy (FBE) Coating: The steel pipe is heated and the epoxy powder is melted and fused to the surface. FBE coatings offer excellent corrosion resistance and are widely used in water pipelines and the oil and gas industry. 2. Polyethylene (PE) Coating: Similar to FBE coatings, PE coatings are applied to steel pipes. They provide a protective layer that is resistant to moisture, chemicals, and abrasion. PE coatings are commonly used in gas pipelines and underground water pipelines. 3. Polypropylene (PP) Coating: PP coatings have similar application processes and protective qualities as PE coatings. However, they offer enhanced resistance to higher temperatures, making them suitable for chemical processing plants and refineries. 4. Concrete Weight Coating (CWC): This special coating involves applying a layer of concrete to the steel pipe. It adds weight to the pipe, making it more stable and resistant to buoyancy in underwater or submerged applications. 5. Zinc Coating: Zinc coatings, such as hot-dip galvanizing, involve immersing the steel pipe in molten zinc. This creates a protective layer of zinc on the pipe's surface, offering excellent corrosion resistance. Zinc coatings are commonly used in outdoor applications, such as fencing, guardrails, and water pipelines. 6. Bituminous Coating: Bituminous coatings involve applying a layer of bitumen or asphalt to the steel pipe. They provide excellent resistance to water and chemicals, making them suitable for underground pipelines and structures. These examples illustrate the variety of coatings available for steel pipes. The choice of coating depends on factors like the intended application, environmental conditions, and desired level of corrosion resistance.

Q:What are the advantages of using stainless steel pipes?: There are several advantages of using stainless steel pipes. Firstly, stainless steel is highly resistant to corrosion, making it suitable for various applications where exposure to moisture or harsh environments is a concern. Secondly, stainless steel pipes have excellent strength and durability, allowing them to withstand high pressures and temperature fluctuations. Additionally, stainless steel is hygienic and easy to clean, making it ideal for applications in the food and beverage industry. Lastly, stainless steel pipes are aesthetically pleasing and can be easily integrated into different architectural designs.

Q:What are the different coatings applied to steel pipes?: There are various coatings that can be applied to steel pipes to enhance their durability and protect them from corrosion. Some common coatings include fusion-bonded epoxy (FBE), which provides excellent corrosion resistance, and polyethylene (PE), which offers high impact strength. Other coatings include polyurethane (PU) and coal tar enamel, which provide additional protection against abrasion and chemical corrosion. Additionally, zinc coatings such as hot-dip galvanizing are used to prevent rust and extend the lifespan of steel pipes.

Q:What's wrong with the 3PP anticorrosive steel tube?: At present, mainly foreign related products come out, for some countries with relatively high ambient temperature, and PP than PE to hard, so as to avoid scratching coating.

Q:How are steel pipes used in the manufacturing of aerospace components?: Steel pipes are used in the manufacturing of aerospace components for various purposes such as supporting structures, fuel systems, hydraulic and pneumatic systems, and exhaust systems. They provide strength, durability, and resistance to extreme temperatures and pressure, making them suitable for critical applications in the aerospace industry.

Q:Are steel pipes suitable for underground cable protection?: Indeed, underground cable protection can be achieved through the use of steel pipes. These pipes boast remarkable durability and strength, rendering them an optimal choice for safeguarding cables against external elements such as physical harm, wetness, and corrosion. They are capable of enduring the soil's weight and any potential pressure from above, guaranteeing the cables' security and protection. Furthermore, steel pipes can be effortlessly welded or connected to establish a continuous and flawless conduit, thereby bolstering their efficacy in underground cable protection.

Q:How do steel pipes compare to other materials, such as PVC or copper?: Steel pipes are generally considered to be stronger and more durable compared to materials like PVC or copper. While PVC pipes are lightweight and easy to install, they are not as strong as steel and can be more prone to cracking or breaking. Copper pipes, on the other hand, are known for their corrosion resistance and are commonly used for plumbing systems. However, steel pipes have the advantage of being highly resistant to extreme temperatures, pressure, and damage, making them suitable for a wide range of applications, including industrial and commercial use.

Q:How are steel pipes used in building foundations?: Steel pipes are often used in building foundations as piles or piers. They are driven into the ground to provide structural support and stability for the building. The steel pipes act as load-bearing elements, transferring the weight of the structure to the underlying soil or rock. Additionally, they can also be utilized for underground utility installations or as part of a drainage system in building foundations.

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