Schedule 40 ASTM A53 API 5L GR.B Carbon Seamless Steel Tubes A106B,C CNBM

Schedule 40 ASTM A53 API 5L GR.B Carbon Seamless Steel Tubes A106B,C CNBM System 1

Schedule 40 ASTM A53 API 5L GR.B Carbon Seamless Steel Tubes A106B,C CNBM

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Loading Port:: Qingdao

Payment Terms:: TT OR LC

Min Order Qty:: 10 pc

Supply Capability:: 30 pc/month

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Quick Details

Thickness:	2.0 - 85 mm	Section Shape:	Round	Outer Diameter:	17 - 914.4 mm
		Secondary Or Not:	Non-secondary	Application:	Oil Pipe
Technique:	Hot Rolled	Certification:	API	Surface Treatment:	VARNISH PAITING
Special Pipe:	API Pipe	Alloy Or Not:	Non-alloy	END:	PLAIN,BEVELED OR THREADED
Grade:	10#,20#,16Mn,A106(B,C),A210,A335 P5,A335 P91,A53(A,B),API J55,API K55,Q195,Q235,Q345,St37,St52,10#-45#,A53-A369,API J55-API P110,Q195-Q345,ST35-ST52	Standard:	API 5CT,API 5L,ASME B36.19M-2004,ASTM A106-2006,ASTM A179-1990,ASTM A182-2001,ASTM A53-2007,BS 1387,DIN 1629/3,DIN EN 10216-1-2004,GB 5310-1995,GB/T 3091-2001,GB/T 8162-1999,GB/T 8163-1999,JIS G3454-2007,API,ASTM,BS,DIN,GB,JIS

Packaging & Delivery

Packaging Detail:

standard packing suitable shipping by sea.fixed length as customers' requirements, or SRL or DRL. Varnish, painting or galvanized, or FBE ,2PE,3PE 3pp coating,bevelled/plain/threaded ends with caps, packing in bundle (OD smaller than 141.3mm) big sizes packing in loose, marking as required. Shipped by sea,by air,by train . or some samples shipped by DHL,EMS,TNT,FEDEX ect. Length shorter than 5.85m should be shipped by 20' container, 5.85-12m shipped by 40' container.

Delivery Detail:

7-35 days after advance payment

Product Description

Seamless steel pipes, a large number of used pipes conveying fluids, such as transport oil, natural gas, gas, water pipes and some solid materials, and so on. Compared to other steel and solid steel bar, the same torsional strength in bending, lighter, is an economic cross-section steel, widely used in the manufacture of structural parts and mechanical parts, such as drill pipe, automotive drive shafts, bicycle rack and construction using steel scaffolding ring with steel pipe manufacturing parts, can improve material utilization, simplify the manufacturing process, saving material and machining time, such as bearing rings, jack sets, has been widely used to manufacture steel. Steel or a variety of conventional weapons indispensable material, gun barrels to make steel. Steel shapes in different cross-sectional area can be divided into tube and shaped tubes. As in the perimeter of equal conditions, the largest area of a circle with a circular tube can carry more fluid. In addition, the circular cross section to withstand internal or external radial pressure, the force is uniform, so the vast majority of the pipe is pipe.

Q:How do steel pipes handle pressure surges?: Steel pipes are known for their strength and durability, which allows them to handle pressure surges effectively. When pressure surges occur in a pipeline system, steel pipes have the ability to withstand and absorb the increased force without breaking or rupturing. The high tensile strength of steel provides resistance against the pressure exerted on the pipes, preventing them from deforming or collapsing under the sudden surge. Additionally, steel pipes have a high burst pressure rating, meaning they can withstand significant increases in pressure without failing. Furthermore, steel pipes are often designed with a thicker wall thickness, which adds to their ability to handle pressure surges. The thickness of the pipe walls helps to distribute the increased force evenly, minimizing the risk of localized stress and potential failure points. Moreover, steel pipes are commonly used in conjunction with fittings and valves that are specifically designed to handle pressure surges. These fittings and valves are made from similar materials, ensuring compatibility and maintaining the integrity of the pipeline system. Overall, steel pipes are well-suited for handling pressure surges due to their strength, durability, and ability to withstand high pressures. Their resistance to deformation, high burst pressure rating, and compatibility with specialized fittings and valves make them a reliable choice for applications where pressure surges may occur.

Q:Can steel pipes be used for airport construction?: Yes, steel pipes can be utilized in the construction of airports. In the construction industry, steel pipes find widespread application, including in airports. They are often employed for underground utilities like water and sewage lines, as well as for structural purposes such as providing support to the airport terminal building. The utilization of steel pipes for airport construction offers several advantages. Firstly, they possess remarkable strength and durability, making them capable of handling heavy loads and enduring unfavorable weather conditions. This attribute is crucial for ensuring the security and stability of airport structures. Secondly, steel pipes are highly versatile and can be easily tailored to meet specific project requirements. They are available in various sizes and thicknesses, providing flexibility in both design and construction. Moreover, steel pipes can be welded or joined together to form longer sections, which simplifies installation and reduces construction time. Furthermore, steel pipes exhibit resistance to corrosion, a vital characteristic in airports where constant exposure to moisture, salt, and other environmental factors is common. This resistance to corrosion guarantees the longevity and dependability of the infrastructure. Lastly, in comparison to materials like concrete or PVC, steel pipes offer a cost-effective solution. They necessitate relatively low maintenance and boast a long lifespan, thereby minimizing the need for frequent repairs or replacements and ultimately saving time and money in the long term. In conclusion, due to their strength, durability, versatility, corrosion resistance, and cost-effectiveness, steel pipes are a suitable choice for airport construction.

Q:How are steel pipes protected against seismic activities?: Steel pipes are protected against seismic activities through various measures such as designing them to be flexible and resilient, using seismic joints and hangers, and implementing proper anchoring and support systems. Additionally, steel pipes are often coated with protective materials to enhance their resistance to corrosion and other external factors that may be triggered by seismic events.

Q:How do you clean and maintain steel pipes?: To clean and maintain steel pipes, start by removing any dirt, debris, or rust using a wire brush or sandpaper. Then, wash the pipes with a mild detergent and warm water solution, using a cloth or sponge to scrub away any remaining grime. Rinse thoroughly with clean water and dry the pipes completely to prevent moisture-related issues. To maintain steel pipes, regularly inspect them for signs of corrosion or damage, and apply a protective coating or paint if necessary. Additionally, ensure proper drainage, avoid exposure to harsh chemicals, and promptly address any leaks or repairs needed to extend the lifespan of the pipes.

Q:What kinds of steel pipe are divided into?: Welded pipe: also known as welded pipe, is made of steel or steel strip after bending forming, and then made by welding. In accordance with the form of weld is divided into longitudinal welded pipe and spiral welded pipeSpecifically refers to the use of welded steel strip or plate bending deformation of round, square shape after welded, surface jointed steel pipe. The welding steel billets is used in steel plate or strip. The welded pipe production process simple, high production efficiency, great variety, less capital equipment, but since the general strength is less than that of seamless steel.20 century 30s, along with the rapid development of high-quality strip rolling production and progress of welding and testing technology, and constantly improve the weld quality, varieties and specifications of welded steel pipe is increasing, and instead of the seamless steel pipe in more and more fields. Compared with welded steel seamless steel tube with low cost and high production efficiency.

Q:How do you solder purple copper plate and steel tube?: When the copper pipe and the size is not too large, such as 10 mm below the pipe welding, brazing is suggested, with brass solder, such as Wei Odin 201 solder, with supporting solder paste, with a neutral flame welding, the copper plate is heated to about 800 degrees, and then use the solder with 201 Wei Odin 201-F in solder welding, welding wire with melt molding.

Q:What is the difference between black steel pipes and galvanized steel pipes?: Black steel pipes and galvanized steel pipes differ in their coating. Black steel pipes are uncoated and have a dark, matte appearance, while galvanized steel pipes are coated with a layer of zinc to prevent corrosion. The galvanization process provides added protection and durability, making galvanized steel pipes suitable for outdoor or high-moisture environments.

Q:How do you measure the thickness of a steel pipe?: To measure the thickness of a steel pipe, you can use various methods depending on the precision required and the tools available. Here are three common approaches: 1. Calipers or Vernier Calipers: Calipers are a simple and widely used tool for measuring thickness. Open the calipers and place the jaws on either side of the pipe, ensuring they are perpendicular to the surface. Close the jaws until they lightly touch the pipe, then read the measurement on the caliper scale. 2. Ultrasonic Thickness Gauge: This method offers more accurate results and is often used in industrial settings. An ultrasonic thickness gauge emits high-frequency sound waves that penetrate the steel pipe. By measuring the time it takes for the sound waves to bounce back, the gauge calculates the thickness of the pipe. Ensure the pipe surface is clean and smooth before taking the measurement. 3. Magnetic Thickness Gauge: This method is specifically designed for measuring the thickness of ferrous materials like steel. The gauge contains a small magnet that adheres to the pipe surface. By applying a magnetic field, the gauge measures the distance between the magnet and the base plate. This distance corresponds to the thickness of the steel pipe. It's important to note that each method has its own accuracy limitations, and the choice of measurement technique should be based on the desired precision, availability of tools, and the specific requirements of the application.

Q:What is the maximum allowable stress for steel pipes?: The maximum allowable stress for steel pipes depends on various factors such as the grade of steel, diameter, wall thickness, and the intended application. It is typically determined by industry standards and codes, such as the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code. Therefore, there is no one-size-fits-all answer to this question.

Q:How are steel pipes protected against external corrosion in coastal areas?: To safeguard steel pipes against external corrosion in coastal regions, a combination of coating and cathodic protection methods is employed. An effective approach involves applying a protective coating onto the steel surface, forming a barrier against corrosive elements like saltwater and humidity present in the coastal environment. Commonly used coating materials, such as epoxy or polyethylene, possess corrosion-resistant properties and offer long-lasting protection. Furthermore, cathodic protection is utilized to enhance the corrosion resistance of the steel pipes. This technique employs sacrificial anodes or impressed current to prevent corrosion. Sacrificial anodes, typically made of zinc or aluminum, are attached to the steel pipe and corrode in place of the steel, sacrificing themselves to safeguard the steel surface. On the other hand, impressed current systems rely on an external power source to provide a protective current, effectively preventing corrosion. Ensuring the effectiveness of the protective coating and cathodic protection system necessitates regular inspection and maintenance. Coatings may degrade over time due to wear and tear, requiring periodic evaluation and reapplication if necessary. Similarly, sacrificial anodes must be replaced when depleted, and impressed current systems need to be monitored and adjusted to maintain the desired level of protection. By combining the application of durable coatings with cathodic protection measures, steel pipes in coastal areas can be adequately shielded against external corrosion, promoting their durability and optimal performance.

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