Seamless steel pipe ASTM A106/API 5L/ASTM A53 20#

Seamless steel pipe ASTM A106/API 5L/ASTM A53 20#

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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 construction of wastewater treatment plants?: Steel pipes are used extensively in the construction of wastewater treatment plants for various purposes. They are used for the transportation of wastewater from one unit to another, as well as for the distribution of treated water to different areas. Steel pipes are also used in the construction of the main water supply and drainage systems within the plants. Additionally, they are utilized for the installation of pumps, valves, and other equipment required for the treatment process. The durability and strength of steel pipes make them an ideal choice for the demanding and corrosive environment of wastewater treatment plants.

Q: Can steel pipes be used for oil drilling operations?: Yes, steel pipes are commonly used for oil drilling operations. They possess the necessary strength and durability to withstand the harsh conditions of drilling and transporting oil. Additionally, steel pipes have excellent corrosion resistance, making them suitable for long-term use in the oil and gas industry.

Q: How are steel pipes protected against rusting?: Corrosion protection is employed to safeguard steel pipes from rusting. Various methods are utilized for preventing the formation of rust on steel pipes, including the following: 1. Coatings: To create a barrier against rust, different coatings are applied to the surface of steel pipes. These coatings prevent oxygen and moisture from reaching the metal surface and initiating the rusting process. Options for coatings include epoxy, polyethylene, zinc, or a combination of these materials. 2. Galvanization: Steel pipes are immersed in a molten zinc bath to undergo galvanization. This process forms a protective layer of zinc on the surface of the pipes, acting as a sacrificial barrier. If any small areas of the pipe surface are exposed, the zinc coating will corrode instead of the steel, providing continuous protection against rust. 3. Cathodic Protection: Electrical current is utilized to safeguard steel pipes in this method. By connecting the pipes to a sacrificial anode, usually made of zinc or magnesium, the anode will corrode instead of the steel pipes when exposed to moisture and oxygen. This method is commonly employed in underground or underwater applications. 4. VCI (Vapor Corrosion Inhibitor) Technology: Chemical compounds are used in VCI technology to release a vapor that protects steel pipes from rusting. These compounds form a thin layer on the surface of the pipes, inhibiting the corrosion process by neutralizing oxygen and moisture. 5. Regular Maintenance: Aside from the aforementioned methods, regular inspection and maintenance play a crucial role in preventing rust formation on steel pipes. This involves cleaning the pipes, removing any accumulated debris or corrosive substances, and repairing any damaged coatings or protective layers. In summary, these corrosion protection methods effectively ensure the longevity and durability of steel pipes in various industrial, commercial, and residential applications by safeguarding them against rusting.

Q: What are the different methods of testing steel pipes?: There are several methods of testing steel pipes, including visual inspection, ultrasonic testing, magnetic particle testing, liquid penetrant testing, radiographic testing, and hydrostatic testing. Each method serves a specific purpose in evaluating the quality and integrity of steel pipes, ensuring they meet industry standards and are suitable for their intended applications.

Q: What are the safety precautions while working with steel pipes?: Some safety precautions while working with steel pipes include wearing appropriate personal protective equipment such as gloves, safety glasses, and steel-toed boots to prevent injuries. It is important to ensure the work area is clear of any obstacles or tripping hazards. Workers should be trained in proper lifting techniques to prevent strain or back injuries. Additionally, it is crucial to follow proper procedures for handling and storing steel pipes to prevent accidents and maintain a safe working environment.

Q: Difference between cold rolled steel pipe and common steel pipe: 1, from the dimension accuracy above, cold-rolled steel pipe size is good, high precision2. from the outward appearance, the surface of cold-rolled steel pipe is bright, and the surface of hot rolled steel pipe has obvious oxide skin or red rust

Q: Are steel pipes resistant to impact?: Yes, steel pipes are generally resistant to impact due to their high strength and durability. They can withstand external forces and are less likely to deform or break upon impact compared to other materials.

Q: What are the safety measures to consider when working with steel pipes?: When working with steel pipes, there are several safety measures to consider. Firstly, it is essential to wear appropriate personal protective equipment (PPE) such as safety glasses, gloves, and steel-toed boots to protect against potential hazards. Additionally, workers should be cautious of sharp edges and take necessary precautions to avoid cuts or lacerations. Furthermore, it is crucial to implement proper lifting techniques and use appropriate lifting equipment when handling heavy steel pipes to prevent back injuries. Adequate training and supervision should be provided to ensure workers are aware of the correct procedures. Another safety measure is to secure the pipes properly to prevent them from rolling or falling, which can cause injuries or damage. Regular inspections of the pipes and the work area should be conducted to identify and rectify any potential hazards. Lastly, workers should be trained on fire safety measures and have access to fire extinguishers or other firefighting equipment in case of emergencies. Proper ventilation should also be ensured when working with steel pipes to avoid inhalation of hazardous gases or fumes. Overall, adhering to safety protocols, using appropriate equipment, and being aware of potential hazards are crucial safety measures when working with steel pipes.

Q: How are steel pipes used in the construction of skyscrapers?: Steel pipes are commonly used in the construction of skyscrapers for their strength, durability, and versatility. These pipes are typically used as structural elements, forming the framework of the building, providing support and stability. They are used in the construction of columns, beams, and braces, enabling the building to withstand heavy loads and high winds. Additionally, steel pipes are used for plumbing and mechanical systems, carrying water, gas, and other utilities throughout the building. Their use in skyscrapers ensures the overall strength and integrity of the structure.

Q: What is the role of steel pipes in the transportation of chemicals?: The role of steel pipes in the transportation of chemicals is to provide a strong, durable, and corrosion-resistant conduit for safely moving various types of chemicals from one location to another. Steel pipes are known for their high strength and ability to withstand high pressure, making them suitable for handling hazardous or aggressive substances. Additionally, the smooth interior surface of steel pipes minimizes friction, allowing for efficient and continuous flow of chemicals. The steel material is also resistant to chemical reactions, ensuring the integrity and purity of the transported substances. Overall, steel pipes play a crucial role in ensuring the safe and efficient transportation of chemicals, protecting both the environment and human health.

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