Hollow Section-Square Pipes With High Quality

Hollow Section-Square Pipes With High Quality System 1

Hollow Section-Square Pipes With High Quality

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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 coated for insulation purposes?: Steel pipes are commonly coated for insulation purposes through a process called external coating. This involves applying a layer of insulating material, such as polyethylene or epoxy, onto the surface of the steel pipe. The coating is carefully applied to ensure a uniform and continuous layer, which helps to prevent heat transfer and protect the pipe from corrosion.

Q: How are steel pipes protected against external corrosion in coastal areas?: Steel pipes in coastal areas are protected against external corrosion through various methods. One commonly used method is the application of protective coatings, such as epoxy or polyethylene, which act as a barrier between the steel surface and the corrosive elements in the coastal environment. Additionally, cathodic protection techniques, such as sacrificial anode systems or impressed current systems, are employed to prevent corrosion by providing a protective current to the steel pipes. Regular inspection and maintenance of these protective measures also play a crucial role in ensuring the long-term corrosion protection of steel pipes in coastal areas.

Q: What are the advantages of using steel pipes in construction projects?: There are several advantages of using steel pipes in construction projects. Firstly, steel pipes are incredibly strong and durable. They have a high tensile strength, which means they can withstand heavy loads and pressures without deforming or breaking. This makes them ideal for applications where structural integrity is crucial, such as in the construction of buildings, bridges, and infrastructure. Secondly, steel pipes have excellent resistance to corrosion. They are typically coated with protective layers, such as galvanized zinc or epoxy, which prevent rusting and extend their lifespan. This makes steel pipes suitable for both aboveground and underground applications, including water and sewage systems, oil and gas pipelines, and industrial processing plants. Additionally, steel pipes offer great versatility in terms of shape and size. They can be manufactured in various diameters and thicknesses, allowing for customization to meet specific project requirements. This flexibility in design makes steel pipes suitable for a wide range of applications in construction, including plumbing, HVAC systems, and structural supports. Moreover, steel pipes are relatively easy to install and maintain. They can be welded, threaded, or bolted together, providing a secure and leak-proof connection. This ease of installation reduces construction time and labor costs. Furthermore, steel pipes require minimal maintenance, as they are resistant to cracking, chipping, and warping. This makes them a cost-effective choice over the long term. Lastly, steel pipes are environmentally friendly. They are 100% recyclable, meaning they can be reused and repurposed without losing their structural integrity. Recycling steel pipes reduces the need for new raw materials and minimizes waste generation, making them a sustainable option for construction projects. Overall, the advantages of using steel pipes in construction projects include their strength, corrosion resistance, versatility, ease of installation and maintenance, and environmental sustainability. These qualities make steel pipes a reliable and cost-effective choice for a wide range of applications in the construction industry.

Q: Can steel pipes be used for underground water supply systems?: Yes, steel pipes can be used for underground water supply systems. Steel pipes are durable, strong, and resistant to corrosion, making them suitable for underground applications. They can withstand high water pressure, provide efficient flow of water, and have a long lifespan. However, it is important to ensure that the steel pipes are properly coated and protected against corrosion to prevent any contamination of the water supply. Additionally, steel pipes are heavier than other materials, which may require additional support during installation. Proper maintenance and regular inspection are also crucial to identify any potential issues and prevent leaks or damage to the underground water supply system.

Q: What are the safety considerations when working with steel pipes?: When working with steel pipes, there are several important safety considerations to keep in mind. Firstly, it is crucial to wear appropriate personal protective equipment (PPE). This includes safety glasses or goggles to protect the eyes from flying debris or sparks, gloves to protect the hands from sharp edges or hot surfaces, and steel-toed boots to protect the feet from falling objects or heavy equipment. Additionally, wearing a hard hat is recommended to protect the head from potential falling objects or overhead hazards. Next, it is important to be aware of the weight and size of steel pipes. Handling heavy pipes can put strain on the back and muscles, so it is essential to use proper lifting techniques and seek assistance when necessary. Using lifting equipment, such as cranes or forklifts, can also help prevent injuries related to heavy lifting. Another safety consideration is the risk of cuts or punctures. Steel pipes can have sharp edges or burrs, so it is important to handle them with care and wear appropriate gloves to reduce the risk of injury. Inspecting pipes for any defects or sharp edges before working with them is also recommended. Furthermore, working with steel pipes may involve welding or cutting, which can produce sparks, heat, and fumes. It is crucial to work in a well-ventilated area or use proper ventilation equipment to ensure the removal of harmful gases or fumes. Fire safety precautions should also be taken, such as having fire extinguishers nearby and following proper procedures for hot work. Lastly, it is important to be aware of potential hazards associated with working at heights or in confined spaces. When working on elevated platforms or scaffolding, fall protection measures, such as safety harnesses or guardrails, should be in place. In confined spaces, proper ventilation and monitoring for hazardous gases are essential to prevent asphyxiation or exposure to toxic substances. Overall, by following these safety considerations and adhering to proper procedures, the risk of accidents or injuries when working with steel pipes can be significantly reduced.

Q: D108*4 what does "D108" mean by seamless steel tubes? What does "*4" mean?: D108: refers to the outer diameter of 108mm;4: refers to the wall thickness of 4mm.

Q: Can steel pipes be used for underground oil and gas pipelines?: Yes, steel pipes are commonly used for underground oil and gas pipelines due to their durability, strength, and resistance to corrosion.

Q: How are steel pipes used in the chemical industry?: Steel pipes are widely used in the chemical industry for various purposes such as transporting chemicals, gases, and liquids. They are known for their strength, durability, and resistance to corrosion, making them suitable for handling corrosive substances. Steel pipes are used for transferring raw materials, intermediate products, and final products within chemical plants, as well as for connecting different equipment and machinery. They are essential for maintaining a safe and efficient flow of chemicals throughout the industry.

Q: What does carbon seamless steel pipe mean? What is the difference between a seamless 20# and an ordinary one? What is it used in detail?: In general, steel is divided into two groups according to their chemical composition: carbon steel and alloy steel;(1): carbon steel low carbon steel (C = 0.25%); carbon steel (0.25% < C < 0.60%); high carbon steel (C = 0.60%)(2): alloy steel, low alloy steel (alloy is less than or equal to 5%); in steel (5% < < 10% alloy; high alloy steel (alloy) = 10%)Carbon seamless steel tubes are mostly pipes for mechanical engineering structures and pipes for conveying fluids.

Q: How are steel pipes repaired if they develop leaks?: Steel pipes can be repaired if they develop leaks through various methods such as welding, clamping, or using epoxy compounds. The specific repair technique depends on the size and location of the leak as well as the type of pipe, and it is typically carried out by trained professionals with the necessary equipment and expertise.

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