Seamless tube ASTM A53/ASTM A 106/API 5L

Seamless tube ASTM A53/ASTM A 106/API 5L

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 10 m.t.

Supply Capability:: 5000 m.t./month

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1. Commodity Name: Seamless steel pipe

2. Standard: API,GB,ASTM,ASME,DIN

3. Quality grade: 10#, 20#, A106B, A53B, API 5L B, Q235, Q345, ST37-2, ST 45, ST52.etc.

4. Dimension:

OD: 1/2"-24"

WT: 2.5-80mm, SCH10~SCH40~XXL

length: 5.8m,6m,8m,9m,12m

5. Technique: Hot Rolled/Cold Rolled/ Cold Drawn

6. application

carbon seamless steel pipes are widely used in gas, water and oil, transpotation;constructions;Bridge,highway,windows of model steel door; building materials;fences;heating facilities Fluid Pipe;conduit pipe,scaffolding pipe.etc.

7. Payment Terms: L/C D/A D/P T/T

8.packing and shipment

Packaged in bundles,as per customers' requirements, it can also bepackagesd as beveled ends, typed marking, black painting, plastic caps protection,woven bags packing

For 20" container the max length is 5.8m; For 40" container the max length is 12m. other options are available based on customer requests. Please discuss when placing orders.

9. Surface: painted with varnish;

10. Plastic caps at ends.

11. Tolerance: OD +1%/-1%

WT +12.5%/-10%

12. Chemical composition:

Models of Steel Pipes	Chemical Component
Steel 20 (ASTM A106B)	C	Si	Mn	P	S	Cu	Ni	Cr
Steel 20 (ASTM A106B)	0.17~0.24	0.17~0.37	0.35~0.65	0.035max	0.035max	0.25max	0.25max	0.25max
Steel45 (ASTM 1045)	0.42~0.50	0.17~0.37	0.50~0.80	0.035max	0.035max	0.25max	0.25max	0.25max
16Mn(Q345B)	0.12~0.20	0.20~0.55	1.20~1.60	0.035max	0.035max	0.25max	0.25max	0.25max
45Mn2 ( ASTM1345)	0.42~0.49	0.17~0.37	1.40~1.80	0.035max	0.035max	0.3max	0.3max	0.30max

Q: How are steel pipes used in the food processing industry?: Steel pipes are commonly used in the food processing industry for various purposes such as transporting liquids, gases, and solids, as well as for conveying hot water, steam, and chemicals. These pipes are known for their durability, corrosion resistance, and ability to withstand high temperatures, making them ideal for applications where strict hygiene and safety standards are essential. Steel pipes are used in food processing plants for tasks like transferring ingredients, transporting processed products, and maintaining a sterile environment through steam cleaning and sanitization processes.

Q: Can steel pipes be used for underground culverts?: Yes, steel pipes can be used for underground culverts. Steel pipes are known for their strength, durability, and resistance to various environmental factors, which makes them suitable for underground applications. They can withstand heavy loads, high water pressure, and the corrosive effects of soil and water. Additionally, steel pipes are available in various sizes and thicknesses, allowing for customization to fit specific project requirements. However, it is important to consider factors such as the soil conditions, water table levels, and potential for corrosion when selecting the appropriate type of steel and protective coatings for the pipes.

Q: How does the price of steel pipes vary based on market demand?: The price of steel pipes can vary based on market demand. When there is high demand for steel pipes, the price tends to increase as suppliers may have limited stock and are able to charge higher prices. Conversely, when the demand is low, the price of steel pipes can decrease as suppliers may offer discounts or reduce prices to encourage sales. Therefore, market demand plays a significant role in influencing the price fluctuations of steel pipes.

Q: What is the difference between ERW and SAW steel pipes?: ERW (Electric Resistance Welded) steel pipes are manufactured by rolling metal sheets and then welding the seams using high-frequency electrical currents. SAW (Submerged Arc Welded) steel pipes, on the other hand, are formed by welding the seams using a submerged arc welding process. The main difference between the two lies in the welding method and the resulting quality of the weld. ERW pipes tend to have a smoother and more consistent weld, while SAW pipes have a slightly rougher weld due to the submerged arc process. Additionally, SAW pipes are generally used for larger diameters and thicker walls, while ERW pipes are commonly used for smaller diameters and thinner walls.

Q: How are steel pipes used in the manufacturing of storage tanks?: Steel pipes are commonly used in the manufacturing of storage tanks as they provide structural strength and durability. These pipes are used to create the framework or skeleton of the tank, providing support and stability to hold large volumes of liquid or gas. Additionally, steel pipes are often used for the inlet and outlet connections, as well as for internal piping systems that allow for the transportation of substances within the tank. Overall, steel pipes play a crucial role in ensuring the integrity and functionality of storage tanks in various industries.

Q: Can steel pipes be used for electrical conduits?: No, steel pipes are not typically used for electrical conduits as they are conductive and can pose a safety risk. Electrical conduits are usually made of non-conductive materials such as PVC or metal with insulating coatings.

Q: How are steel pipes repaired in case of damage or leaks?: Various methods can be used to repair steel pipes in the event of damage or leaks. Welding is a common approach where a filler material is melted along with the damaged or leaking area, creating a strong bond that seals the leak. This method is effective for small to moderate-sized leaks and finds wide application in industries like oil and gas, plumbing, and construction. Another method involves the use of mechanical couplings. These couplings are designed to connect two sections of pipe securely, ensuring a tight connection. They can be utilized to repair damaged or leaking sections of a steel pipe by removing the damaged area and replacing it with a new section that is linked using the mechanical coupling. This method is particularly useful for larger leaks or damaged sections that cannot be repaired through welding. In certain cases, temporary fixes can be applied using pipe clamps or epoxy compounds. Pipe clamps are employed to seal the damaged area tightly, preventing further leakage. On the other hand, epoxy compounds are directly applied to the damaged or leaking section, creating a temporary seal that stops the leak until a more permanent repair can be carried out. It is essential to consider the severity and location of the damage or leak, as well as the specific requirements of the application, when deciding on the method of repair. In some instances, it may be necessary to replace the entire section of the steel pipe if the damage is extensive or if multiple leaks are present. It is advisable to consult a professional or a specialized pipe repair service to determine the most suitable repair method for a particular situation.

Q: Can steel pipes be coated for aesthetic purposes?: Yes, steel pipes can be coated for aesthetic purposes. Coating steel pipes not only adds a visually appealing finish but also provides protection against corrosion and other environmental factors. There are various coating options available for steel pipes, such as powder coating, epoxy coating, and vinyl coating, among others. These coatings can be applied in different colors and textures to enhance the appearance of the pipes and complement the surrounding environment. Whether in industrial settings, architectural projects, or decorative applications, coating steel pipes can transform them into visually appealing elements while maintaining their structural integrity.

Q: How are steel pipes insulated against heat loss?: There are multiple ways to insulate steel pipes to prevent heat loss. One widely used method involves utilizing insulation materials like mineral wool or fiberglass wraps. These materials are wrapped around the pipes, forming a barrier that reduces heat transfer. Another approach involves directly applying insulation coatings like foam or rubber coatings onto the pipe's surface. These coatings create a protective layer that minimizes heat loss. Additionally, thermal tape or heat-resistant tape can be employed to seal any gaps or joints in the insulation, ensuring a continuous barrier against heat loss. In summary, effectively insulating steel pipes is crucial to maintaining the desired temperature of the fluid or gas being transported and enhancing energy efficiency across diverse industries.

Q: What is the difference between steel pipe and PVC conduit?: Steel pipe and PVC conduit serve distinct purposes and possess unique characteristics. The material composition stands as a primary distinction between steel pipe and PVC conduit. Steel pipe consists of robust and enduring materials, typically carbon steel or stainless steel, rendering it sturdy and resistant to impact. Consequently, it finds its utility in heavy-duty applications such as plumbing or structural support. In contrast, PVC conduit is constructed from polyvinyl chloride, a type of plastic. PVC's lightweight, flexibility, and ease of manipulation make it ideal for electrical purposes like safeguarding and directing electrical wires. Resistance to corrosion represents another disparity between the two. Steel pipe exhibits greater resistance to corrosion than PVC conduit, particularly when fortified with protective layers like zinc or epoxy. This makes steel pipe suitable for outdoor applications, subterranean installations, or environments with high moisture or corrosive elements. PVC conduit, while generally resistant to moisture and chemicals, may deteriorate over time when exposed to sunlight and can be harmed by specific chemicals. Consideration of cost becomes another factor. Steel pipe generally incurs greater expenses than PVC conduit due to its material and manufacturing process. Nonetheless, steel pipe's durability and extended lifespan establish it as a cost-effective selection in the long run, particularly for applications necessitating high strength and longevity. On the contrary, PVC conduit is comparatively inexpensive and readily accessible, rendering it a more affordable choice for numerous electrical projects. Lastly, installation methods differ between the two. Steel pipe is typically connected through threaded connections or welded joints, mandating specialized tools and skills. Conversely, PVC conduit can be effortlessly cut, assembled, and connected using PVC cement or fittings. This renders PVC conduit a more DIY-friendly option for electrical installations. In summary, steel pipe and PVC conduit diverge in terms of material composition, resistance to corrosion, cost, and installation methods. Steel pipe boasts strength, durability, and corrosion resistance, making it suitable for rigorous applications. PVC conduit, conversely, possesses lightness, flexibility, and affordability, rendering it ideal for electrical projects.

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