Seamless steel pipe ASTM A106/API 5L/ASTM A53 GR.B 20# high quality

Seamless steel pipe ASTM A106/API 5L/ASTM A53 GR.B 20# high quality

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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 pipe API,GB,ASTM,ASME,DIN high quality

America Standard A53 Q215 150g Hot Dipped or Pre-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 do you determine the required support spacing for steel pipes?: Various factors, including the diameter of the pipe, the strength of the material, the operating conditions, and local building codes and regulations, determine the required support spacing for steel pipes. When considering the diameter of the pipe, it is crucial to note that larger pipes generally need more frequent support to prevent excessive deflection and sagging compared to smaller pipes. The strength of the material is also a significant consideration, as pipes with greater strength can span longer distances without requiring additional support. The operating conditions of the pipe, such as the type of fluid being transported and the temperature, also play a role in determining the necessary support spacing. For instance, pipes carrying heavy or corrosive fluids may require more frequent support to prevent excessive stress and potential failure. Local building codes and regulations often provide specific guidelines for the minimum support spacing of steel pipes. These regulations take into account factors such as the diameter of the pipe, the strength of the material, the operating conditions, as well as safety and structural requirements. To accurately determine the required support spacing for steel pipes, it is essential to consult relevant codes, standards, and engineering guidelines. Additionally, working with qualified engineers and professionals experienced in pipe design and installation will ensure that the support spacing meets all necessary requirements, ensuring the safe and efficient operation of the piping system.

Q: How do you calculate the flow rate in a steel pipe?: When calculating the flow rate in a steel pipe, several factors must be taken into consideration. The primary factor to consider is the cross-sectional area of the pipe, which can be determined using the formula A = πr², where A represents the cross-sectional area and r represents the radius of the pipe. Afterwards, it is necessary to ascertain the velocity of the fluid moving through the pipe. This can be accomplished by utilizing the equation v = Q/A, where v denotes the velocity, Q represents the volumetric flow rate, and A represents the cross-sectional area of the pipe. To determine the volumetric flow rate, one can employ the equation Q = AV, where Q represents the volumetric flow rate, A represents the cross-sectional area, and V represents the average velocity of the fluid. Furthermore, it is essential to take into account the properties of the fluid being transported through the pipe. Factors such as density and viscosity can impact the flow rate. In conclusion, the flow rate in a steel pipe can be calculated by determining the cross-sectional area of the pipe, calculating the velocity of the fluid, and considering the properties of the fluid being transported.

Q: How are steel pipes used in the construction of buildings?: Steel pipes are commonly used in the construction of buildings for various purposes. They are primarily used for structural support, providing stability and strength to the overall framework. Steel pipes are also used for plumbing systems, carrying water and other fluids throughout the building. Additionally, they are used for HVAC (heating, ventilation, and air conditioning) systems, allowing for efficient distribution of air. Overall, steel pipes play a crucial role in ensuring the durability, functionality, and safety of buildings.

Q: Can steel pipes be used for desalination plants?: Yes, steel pipes can be used for desalination plants. Steel pipes are commonly used in desalination plants for transporting seawater, brine, and treated water due to their high strength, durability, and resistance to corrosion. They can withstand the harsh conditions and corrosive nature of saltwater, making them a suitable choice for the construction and operation of desalination plants.

Q: Are steel pipes suitable for underground cable protection?: Indeed, underground cable protection can be achieved through the use of steel pipes. These pipes boast remarkable durability and strength, rendering them an optimal choice for safeguarding cables against external elements such as physical harm, wetness, and corrosion. They are capable of enduring the soil's weight and any potential pressure from above, guaranteeing the cables' security and protection. Furthermore, steel pipes can be effortlessly welded or connected to establish a continuous and flawless conduit, thereby bolstering their efficacy in underground cable protection.

Q: What are the different types of coatings used for external protection of steel pipes?: There are several types of coatings used for external protection of steel pipes. Some common ones include epoxy coatings, polyethylene coatings, coal tar coatings, and fusion bonded epoxy coatings. Each type of coating offers specific benefits and is chosen based on factors such as the environment, type of exposure, and desired level of protection.

Q: How are steel pipes used in the electronics industry?: Steel pipes are commonly used in the electronics industry for the transportation of various gases and liquids, such as coolant and process fluids, within electronic systems. They are also utilized for the construction of supporting structures and frameworks in electronic equipment and facilities.

Q: What is the typical diameter range of steel pipes?: The typical diameter range of steel pipes can vary depending on various factors such as the intended application, industry standards, and specific project requirements. However, in general, steel pipes are available in a wide range of diameters to suit different purposes. Commonly used diameters for steel pipes can range from small diameters of around 0.5 inches (12.7 mm) to larger diameters of several feet or more. This range allows for various applications such as plumbing, oil and gas transportation, structural support, and industrial processes. Ultimately, the specific diameter of a steel pipe will be determined by the specific needs of the project or application at hand.

Q: The plastic pipe and steel pipe difference: Plastic pipe and plastic inner coating, and coated inside and outside. (of course, some are epoxy coated, and some are PE).The plastic tube is one kind of steel pipe, steel plastic pipe has many types, including plastic, plastic, and plastic coated, and epoxy, which are known are steel tubes.

Q: How are steel pipes used in the manufacturing of geothermal systems?: Steel pipes are used in the manufacturing of geothermal systems primarily for their strength, durability, and resistance to corrosion. These pipes are used to transport fluid, typically water or a water-based solution, from the geothermal source to the surface, where it can be utilized for heating or electricity generation. The high tensile strength of steel pipes allows them to withstand the high pressure and temperature conditions typically found in geothermal systems. Additionally, steel pipes are resistant to corrosion, which is important in preventing leaks and maintaining the efficiency of the system over its lifespan.

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