Longitudinal Submerged Arc Welded Pipe

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Loading Port:: China Main Port

Payment Terms:: TT or LC

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Product Description:

1、Structure of Welded Steel Tube:

Welded Steel Tube is formed by drawing a solid billet over a piercing rod to create the hollow shell. We are company that have many years experience and professional manager team and engineer team and sales team, sure we will provide you high quality of welded pipe and professioanl service.

2、‍‍Main Features of the Welded Steel Tube:

• High manufacturing accuracy

• The higher strength

• The small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Satisfy price

3、Welded Steel Tube Specification：

Standard	GB, DIN, ASTM ASTM A106-2006, ASTM A53-2007
Grade	10#-45#, 16Mn 10#, 20#, 45#, 16Mn
Thickness	8 - 33 mm
Section Shape	Round
Outer Diameter	133 - 219 mm
Place of Origin	Shandong, China (Mainland)
Secondary Or Not	Non-secondary
Application	Hydraulic Pipe
Technique	Cold Drawn
Certification	API
‍Surface Treatment	factory state or painted black
‍Special Pipe	API Pipe
Alloy Or Not	Non-alloy
Length	5-12M
Outer Diameter	21.3-610mm
Grade	20#, 45#, Q345, API J55, API K55, API L80, API N80, API P110, A53B
Standard	ASME, ASTM

1) Material:20#(ASTM A 106/A53 GRB.API5LGRB,GB),45#,16Mn,10#.

2) Specification range:OD:21.3-610mm,WT:6-70mm,length:6-12m or according to the requirement of clients.

3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above standards,we can also supply seamless steel pipe with standard of DIN,JIS,and so on,and also develop new products according to the requirements of our clients!
4) Surface:black lacquered,varnish coating or galvanized.
5) Ends:Beveled or square cut,plastic capped,painted.
6) Packing:bundles wrapped with strong steel strip,seaworthy packing.

4、Packaging & Delivery

Packaging Details:	seaworthy package,bundles wrapped with strong steel strip
Delivery Detail:	15-30days after received 30%TT

5、FAQ of Welded Steel Tube:

①How is the quality of your products?
Our products are strictly in accordance with international and domestic standard. We test on every pipe before delivery. Any quality certification or testing report you want to see, please tell us.
Guaranteed: If products’ quality is not in accordance with description as we provide or the promise before you place order, we promise 100% refund.

②How about the price?
Yes, we are factory and be capable of offering you the lowest price. One of our policy is that “ to save time and be absolutely honest with our business relationship, we quote as low as possible for every client, and discount can be given according to the quantity”, if you are interested in bargain and dissatisfy our factory price, just don’t waste your time. Our quotation is professional.

③Why should you choose us?
Choice happens because of our quality and price. Additionally, we can also offer professional products inquiry, products knowledge train (for agents), fast goods delivery, outstanding customer solution proposals. Our service formula: good quality + good price + good service=customer’s trust.
SGS test is available. Customer inspection before shipping is welcome. Third party inspection is OK.

6、‍‍ Welded Steel Tube Images：

Q: Can steel pipes be threaded?: Yes, steel pipes can be threaded. Threading is a common process used to create a screw-like pattern on the outer surface of the pipe, allowing it to be connected to other fittings or components. Threading can be done manually or with the help of machinery, depending on the size and requirements of the pipe.

Q: What are the common methods for repairing steel pipes?: Depending on the nature and extent of the damage, there are several common methods available for repairing steel pipes. One method frequently used is welding. This technique involves melting the damaged area and fusing it with a new piece of steel. Welding is typically employed for small cracks or holes in the pipe. Different welding techniques, such as shielded metal arc welding (SMAW), gas metal arc welding (GMAW), or tungsten inert gas (TIG) welding, can be utilized. Another option is pipe wrapping or bandaging. This method entails wrapping a layer of adhesive tape or resin-soaked fiberglass around the damaged section of the pipe. It is suitable for addressing small leaks or corrosion spots and serves as a temporary solution until a more permanent fix can be implemented. If the damage is extensive or the pipe suffers severe corrosion, pipe lining or relining may be necessary. This involves inserting a new pipe liner inside the existing one, effectively creating a new pipe within the old one. Various materials, such as epoxy, polyethylene, or cured-in-place pipe (CIPP), can be used for this method. Pipe lining is commonly employed for larger diameter pipes or when replacement is not feasible. In some instances, minor leaks or cracks can be repaired using pipe clamps or sleeves. These devices are designed to be clamped around the damaged section and can provide either a temporary or permanent solution, depending on the severity of the damage. Ultimately, the choice of repair method depends on factors such as the extent of the damage, accessibility of the damaged area, budget constraints, and the required long-term durability. It is advisable to consult with a professional pipe repair specialist to assess the specific situation and determine the most suitable method for repairing steel pipes.

Q: How to perform nondestructive inspection of steel tubes: Radiographic inspection (RT)One of the earliest nondestructive testing methods is widely used in the inspection of internal defects of metals and non-metallic materials and products, with a history of at least 50 years. It has incomparable unique advantages, that is to test the correctness, reliability and intuition of the defects, and the ray film can be used for the analysis of defects and as a quality certificate archive. But this method also has the disadvantages of more complicated equipment and higher cost, and should pay attention to the protection of radiation.

Q: How are steel pipes used in the transportation industry?: Steel pipes are used in the transportation industry for various purposes, including the construction of pipelines for transporting oil, gas, and other fluids. They are also used in the manufacturing of vehicles, such as cars, trucks, and trains, where they are commonly used for exhaust systems and structural components. Additionally, steel pipes are utilized in the construction of bridges, tunnels, and other infrastructure projects that support transportation networks.

Q: Can steel pipes be used for underground sprinkler systems?: Yes, steel pipes can be used for underground sprinkler systems. Steel pipes are known for their durability and strength, making them a suitable choice for underground applications. They are resistant to corrosion and can withstand high pressure and temperature, making them suitable for delivering water to sprinkler heads. However, it is important to note that steel pipes may require additional coatings or protective measures to prevent rusting and corrosion over time. Additionally, steel pipes may be more expensive than other materials such as PVC or polyethylene, so the cost factor should be considered as well. Overall, steel pipes can be a viable option for underground sprinkler systems, particularly in areas with harsher environmental conditions.

Q: What are the common methods for joining steel pipes?: The common methods for joining steel pipes include welding, threading, and using mechanical connectors such as couplings or flanges.

Q: Are steel pipes suitable for transporting gas?: Yes, steel pipes are suitable for transporting gas. Steel pipes are known for their durability and strength, making them ideal for transporting gas safely over long distances. They are resistant to corrosion and can handle high pressure, making them a reliable choice for gas transportation.

Q: Can steel pipes be used for petrochemical plants?: Yes, steel pipes can be used for petrochemical plants. Steel pipes are commonly used in petrochemical plants due to their high strength, durability, and resistance to corrosion. They are suitable for transporting various chemicals, gases, and liquids involved in petrochemical processes. Additionally, steel pipes can withstand high pressures and temperatures, making them a reliable choice in the demanding environment of petrochemical plants.

Q: How are steel pipes used in the telecommunications infrastructure industry?: Steel pipes are commonly used in the telecommunications infrastructure industry for various purposes such as supporting overhead cables, protecting underground cables, and providing structural stability to transmission towers and equipment.

Q: What are the common applications of seamless steel pipes?: Seamless steel pipes have numerous common applications in various industries due to their unique properties. Here are some of the most common applications of seamless steel pipes: 1. Oil and gas industry: Seamless steel pipes are widely used in the oil and gas industry for the transportation of oil, gas, and other fluids. They are preferred due to their high strength, durability, and resistance to corrosion, making them suitable for harsh environments. 2. Construction and infrastructure: Seamless steel pipes are extensively used in construction projects, including the construction of buildings, bridges, and tunnels. They are ideal for structural applications due to their ability to withstand heavy loads and provide excellent strength and stability. 3. Automotive industry: Seamless steel pipes are a crucial component in the manufacturing of automotive parts, such as exhaust systems, engine components, and hydraulic systems. They offer high strength, reliability, and resistance to heat, making them suitable for demanding automotive applications. 4. Mechanical and engineering applications: Seamless steel pipes find usage in various mechanical and engineering applications, including machinery, equipment, and manufacturing processes. They are commonly used for carrying fluids, gases, and steam, as well as for the transmission of power in machinery. 5. Power generation: Seamless steel pipes are extensively used in power plants for the transportation of steam and hot water. They are capable of withstanding high pressure and temperature, making them ideal for power generation applications. 6. Petrochemical industry: Seamless steel pipes are crucial in the petrochemical industry for the transportation of various chemicals, gases, and liquids. They have excellent resistance to corrosion, which is essential when dealing with hazardous and corrosive substances. 7. Mining industry: Seamless steel pipes are used in the mining industry for various applications, including the transportation of slurry, water, and other mining-related fluids. They offer durability, reliability, and resistance to abrasion, making them suitable for the challenging mining environment. 8. Aerospace industry: Seamless steel pipes find applications in the aerospace industry for manufacturing aircraft components, such as hydraulic systems, fuel lines, and structural parts. They provide high strength-to-weight ratio and resistance to extreme temperatures and pressure. Overall, the common applications of seamless steel pipes span a wide range of industries, thanks to their exceptional properties, including strength, durability, resistance to corrosion and high temperatures, making them an essential component in various industrial processes and infrastructure development.

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