Seamless steel tube API,GB,ASTM,ASME,DIN

Seamless steel tube API,GB,ASTM,ASME,DIN

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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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Seamless steel pipe API,GB,ASTM,ASME,DIN

America Standard Q235 A500 150g Hot Dipped or Galvanized Pipe

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 agricultural sector?: Steel pipes are commonly used in the agricultural sector for various purposes such as irrigation, drainage, and livestock handling. They are used to transport water from a source to fields, as well as to distribute water evenly across crops through irrigation systems. Steel pipes also help in draining excess water from fields and preventing waterlogging. Additionally, they are utilized for constructing fences, gates, and cattle handling facilities, ensuring the safety and containment of livestock.

Q:What is the composition of steel pipes?: Steel pipes are primarily composed of iron and carbon, with small amounts of other elements such as manganese, silicon, and sulfur.

Q:Can steel pipes be used for underground cable protection?: Yes, steel pipes can be used for underground cable protection. Steel pipes provide excellent durability, strength, and resistance to external factors such as impact, corrosion, and fire. They can effectively shield and protect underground cables, ensuring their safety and longevity.

Q:What are the common problems or issues faced with steel pipes?: Some common problems or issues faced with steel pipes include corrosion, leaks, blockages, and wear and tear. Corrosion can occur due to exposure to moisture or chemicals, leading to rust and weakening of the pipe. Leaks can arise from faulty connections or cracks in the pipe, resulting in water or gas leakage. Blockages can occur due to the accumulation of debris or mineral deposits, hindering the flow of fluids. Over time, steel pipes can also experience wear and tear, leading to erosion or cracks, which may require repair or replacement.

Q:Can steel pipes be used for conveying chemicals?: Yes, steel pipes can be used for conveying chemicals. Steel is a strong and durable material that can withstand high pressure and temperature conditions, making it suitable for transporting various chemicals. Additionally, steel pipes have excellent resistance to corrosion, which is crucial when dealing with corrosive substances. They are commonly used in industries such as oil and gas, chemical processing, and water treatment where the safe and efficient transport of chemicals is essential. However, it is important to consider the specific requirements of the chemical being conveyed and ensure that the steel pipe is compatible with it. Proper material selection, including the use of corrosion-resistant coatings or linings, may be necessary to prevent any adverse reactions between the chemicals and the steel pipe.

Q:How does the price of steel pipes fluctuate?: The price of steel pipes fluctuates due to various factors, including changes in raw material costs, supply and demand dynamics, global economic conditions, and market competition. Fluctuations in the price of steel, which is a key component in pipe manufacturing, directly impact the cost of steel pipes. Additionally, shifts in demand for steel pipes in industries such as construction, oil and gas, and automotive can also influence their pricing. Market conditions, such as trade policies and geopolitical factors, can further contribute to price fluctuations. Therefore, the price of steel pipes is subject to constant change, driven by a combination of these factors.

Q:How are steel pipes used in the chemical industry?: Steel pipes are commonly used in the chemical industry for various applications including the transportation of corrosive chemicals, as well as for transferring fluids and gases at high temperatures and pressures. These pipes are durable, resistant to corrosion, and can withstand harsh working conditions, making them ideal for handling chemicals in industrial settings.

Q:How are steel pipes used in the manufacturing of machinery?: Steel pipes are used in the manufacturing of machinery primarily for conveying fluid or gas, providing structural support, and acting as a conduit for electrical wiring. They are commonly used as the framework for various machine components, such as conveyor systems, hydraulic equipment, and pneumatic systems. Steel pipes offer durability, strength, and versatility, making them an essential material in machinery manufacturing.

Q:What are the different end finishes for steel pipes?: There are several different end finishes for steel pipes, depending on their intended use and the specific requirements of the application. Some of the most common end finishes for steel pipes include: 1. Plain End: This is the simplest and most common type of end finish, where the pipe is cut square at both ends without any additional treatment or threading. Plain end pipes are typically used for low-pressure applications or when the pipe will be connected using welding methods. 2. Beveled End: A beveled end finish involves cutting the pipe at an angle, usually 30 or 37.5 degrees, to facilitate easier welding and create a stronger joint. Beveled end pipes are commonly used for butt-welding applications, where two pipes are joined together by aligning the beveled ends and welding them. 3. Threaded End: In this end finish, the pipe is threaded at both ends to allow for easy connection with threaded fittings or couplings. Threaded end pipes are commonly used in plumbing and gas distribution systems, as well as for applications that require frequent disassembly and reassembly. 4. Coupled End: Coupled end finishes involve the installation of couplings or connectors at each end of the pipe. This allows for quick and easy connection of pipes without the need for additional threading or welding. Coupled end pipes are often used in oil and gas pipelines or in applications where rapid installation is required. 5. Grooved End: A grooved end finish involves cutting grooves into the pipe's ends and using mechanical couplings or fittings to join the pipes together. This type of end finish is commonly used in fire protection systems, as well as for large-diameter pipes that require quick and efficient assembly. 6. Flanged End: Flanged end finishes involve attaching flanges to the pipe ends, which can be bolted together to create a secure and leak-proof connection. Flanged end pipes are commonly used in applications that require easy disassembly and reassembly, such as in chemical plants or refineries. It is important to note that the choice of end finish for a steel pipe depends on factors such as the application, the required joint strength, the type of connection method, and the compatibility with other system components. Consulting with a professional or referring to industry standards is recommended to ensure the correct end finish is selected for a specific application.

Q:What is the thickness of steel pipes?: The thickness of steel pipes varies depending on the specific application and type of pipe used. Typically, steel pipes are available in various thicknesses, measured by their schedule or wall thickness. Schedule 40 is the most common schedule for steel pipes, known for its standard wall thickness. However, for applications demanding higher strength or pressure resistance, thicker pipes with higher schedules like Schedule 80 or Schedule 160 are also available. Moreover, the thickness of steel pipes can be tailored to meet specific project requirements.

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