Carbon seamless steel pipe DIN17175 ST35

Carbon seamless steel pipe DIN17175 ST35

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 10 m.t.

Supply Capability:: 10000 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: Are steel pipes resistant to corrosion?: Yes, steel pipes are resistant to corrosion due to the protective layer formed by the oxide film on their surface. However, their resistance can vary depending on the specific type of steel and the conditions they are exposed to.

Q: Can steel pipes be used for underground electrical conduits?: Yes, steel pipes can be used for underground electrical conduits. They are durable, strong, and provide excellent protection for the electrical wiring. However, it is essential to consider factors such as corrosion and grounding requirements before choosing steel pipes for underground electrical conduits.

Q: What is the difference between steel pipe and PVC pipe?: Steel pipe and PVC pipe are both commonly used materials for plumbing and other construction applications, but they have several key differences. Firstly, the material itself is different. Steel pipe is made from steel, which is an alloy of iron and carbon. It is known for its strength and durability, making it suitable for high-pressure applications and underground installations. On the other hand, PVC (polyvinyl chloride) pipe is made from a type of plastic known as PVC. It is lightweight, flexible, and easy to handle, making it a popular choice for residential plumbing and irrigation systems. Secondly, the installation process differs. Steel pipe requires skilled labor and specialized tools for cutting, threading, and welding. It often involves a complex installation process, especially for larger pipe sizes. PVC pipe, on the other hand, can be easily cut with a saw or specialized pipe cutter and joined together using solvent cement or threaded fittings. This makes PVC pipe more suitable for do-it-yourself projects and simpler installations. Thirdly, steel pipe has a higher cost compared to PVC pipe. Steel is a more expensive material, and the manufacturing process for steel pipe is more complex, involving multiple steps and additional materials. PVC pipe, being made from plastic, is generally cheaper and more cost-effective, especially for smaller diameter applications. In terms of performance, steel pipe has higher tensile strength, can withstand higher pressure, and is more resistant to temperature changes, making it ideal for heavy-duty and industrial applications. PVC pipe, on the other hand, has a lower tensile strength but is resistant to corrosion, chemicals, and scale buildup. It is commonly used in residential plumbing, irrigation systems, and other non-industrial applications. In summary, the main differences between steel pipe and PVC pipe lie in the material, installation process, cost, and performance characteristics. While steel pipe is stronger and more suitable for heavy-duty applications, PVC pipe is lighter, easier to install, and more cost-effective for residential and non-industrial uses.

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: Are there specifications for scaffold steel pipe with 48mm * 3.2mm?: Scaffold tubes are our name for materials used to build scaffolding, because most scaffolding uses tubular bamboo or steel tubing. Bamboo and other bamboo is for a long time in the use of the scaffolding tube, but due to lack of safety and durability, now only in rural and urban area construction is lagging behind some of the home building small building has been used. The modernization construction, the most commonly used type of scaffolding pipe is steel pipe, the scaffolding should not only meet the demand of workers, but also to meet the characteristics of scaffolding firm and durable, so tough hard steel is the best choice. The selected steel pipe generally requires smooth surface, no cracks, no bending, no rust, and meet the relevant national standards.

Q: Can steel pipes be recycled after their useful life?: Yes, steel pipes can be recycled after their useful life. Steel is a highly recyclable material, and old steel pipes can be melted down and repurposed to create new steel products. Recycling steel pipes helps conserve natural resources and reduces the environmental impact associated with mining and manufacturing new steel.

Q: What are the common maintenance practices for steel pipes?: Common maintenance practices for steel pipes include regular inspections, cleaning, and corrosion prevention. Regular inspections are crucial to identify any signs of damage or wear. This can involve visual inspections, as well as non-destructive testing methods such as ultrasonic testing or magnetic particle inspection. Inspections should be carried out on a scheduled basis to ensure any issues are detected early on and can be addressed promptly. Cleaning is another important maintenance practice for steel pipes. This involves removing any dirt, debris, or scale that may accumulate both on the inside and outside of the pipes. Regular cleaning helps to prevent blockages, improve flow efficiency, and reduce the risk of corrosion. Corrosion prevention is a key aspect of maintaining steel pipes. Various methods can be employed to protect the pipes from corrosion, such as applying protective coatings, using cathodic protection systems, or implementing corrosion inhibitors. These measures help to extend the lifespan of the pipes and ensure their structural integrity over time. Other maintenance practices may include repairing or replacing damaged sections of the pipes, maintaining proper insulation to prevent heat loss or gain, and monitoring the pipes for any signs of leakage or pressure drops. Overall, regular inspections, cleaning, and corrosion prevention are essential maintenance practices for steel pipes. By implementing these practices, the lifespan of the pipes can be prolonged, and potential issues can be identified and addressed before they cause significant damage or disruptions.

Q: How are steel pipes used in the construction industry?: Steel pipes are commonly used in the construction industry for various purposes such as transporting fluids, structural support, and underground installations. They are utilized in plumbing systems, HVAC systems, and for conveying water, oil, and gas. Additionally, steel pipes are employed in the construction of high-rise buildings, bridges, and other infrastructure projects due to their durability, strength, and resistance to corrosion.

Q: How are steel pipes joined together?: Steel pipes are commonly joined together using various welding techniques, such as arc welding, butt welding, or socket welding. Additionally, other methods like threaded connections, flanges, or mechanical couplings can be used for joining steel pipes.

Q: What are the advantages of using steel pipes over other materials like PVC or copper?: There are several advantages of using steel pipes over other materials like PVC or copper. Firstly, steel pipes are incredibly durable and can withstand high pressure and extreme temperatures, making them suitable for various industrial applications. They are also resistant to corrosion, ensuring a longer lifespan compared to PVC or copper pipes. Additionally, steel pipes have excellent structural strength, providing enhanced stability and safety. They are also environmentally friendly as they can be recycled, reducing their impact on the environment. Overall, steel pipes offer superior strength, longevity, and reliability, making them a preferred choice for many industries.

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