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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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:Can steel pipes be used for conveying slurries or abrasive materials?: Yes, steel pipes can be used for conveying slurries or abrasive materials. Steel pipes are known for their strength and durability, making them suitable for handling heavy-duty applications. They are resistant to wear, corrosion, and impact, which makes them ideal for conveying abrasive materials or slurries that contain solids or particles. Additionally, steel pipes can withstand high pressure and maintain their structural integrity, ensuring the safe and efficient transportation of slurries or abrasive materials.

Q:How do you calculate the pipe friction loss for steel pipes?: The pipe friction loss for steel pipes can be calculated using the Darcy-Weisbach equation, which takes into account the pipe diameter, length, roughness, flow rate, and fluid properties. This equation considers the pressure drop caused by friction as the fluid flows through the pipe. By solving this equation, the pipe friction loss can be determined.

Q:How are steel pipes used in the transportation of fluids?: Steel pipes are commonly used in the transportation of fluids due to their high strength and durability. They are used in various industries, including oil and gas, water supply, and sewage systems. Steel pipes are ideal for fluid transportation as they can handle high pressure and are resistant to corrosion. They are used to transport liquids and gases over long distances, ensuring a safe and efficient flow of fluids.

Q:What are steel pipes used for?: Steel pipes are used for a wide range of applications in various industries. One of the most common uses of steel pipes is for transporting fluids and gases. They are extensively used in oil and gas pipelines to transport oil, natural gas, and other petroleum products over long distances. Steel pipes are also used in water supply systems, both for domestic and industrial purposes. In the construction industry, steel pipes are used for structural purposes. They provide excellent strength and durability, making them ideal for constructing buildings, bridges, and other infrastructure. Steel pipes are also used in the construction of high-rise buildings, as they can withstand heavy loads and provide stability. Steel pipes are widely used in the manufacturing industry as well. They are used in the production of machinery, equipment, and vehicles. Steel pipes are commonly used for conveying materials such as coal, ore, and grain in bulk handling systems. They are also used in the manufacturing of automotive parts, such as exhaust systems, chassis, and suspension components. Furthermore, steel pipes have various applications in the energy sector. They are used in power plants to transport steam and hot water, as well as in the production and distribution of electricity. Steel pipes are also used in the renewable energy sector, particularly in the construction of wind turbine towers and solar panel frameworks. In addition to these major applications, steel pipes are also used in plumbing systems, irrigation systems, and in the construction of fences and railings. They are highly versatile and can be customized to meet specific requirements in terms of size, thickness, and coating. Overall, steel pipes play a crucial role in many industries and are essential for transporting fluids, constructing infrastructure, and manufacturing various products. Their strength, durability, and versatility make them a preferred choice among engineers and professionals in different fields.

Q:What is the difference between API 5L and ASTM A53 steel pipes?: API 5L and ASTM A53 are widely utilized carbon steel pipe standards with similar purposes but notable distinctions. 1. In terms of scope, API 5L pertains to seamless and welded pipes for transporting oil, gas, water, and other fluids. It encompasses plain-end, threaded-end, and belled-end pipe types. Conversely, ASTM A53 is a standard specification for seamless and welded black and hot-dipped galvanized steel pipes utilized in mechanical and pressure applications. 2. The manufacturing processes differ, as API 5L pipes undergo hot-rolling, while ASTM A53 pipes undergo either hot-rolling or cold-drawing. This variance affects the chemical composition and mechanical properties of the pipes. 3. Generally, API 5L pipes have a higher carbon content compared to ASTM A53 pipes. This discrepancy arises from the intended use of API 5L pipes for conveying oil, gas, and water, necessitating greater strength and durability. On the other hand, ASTM A53 pipes cater to mechanical and pressure applications, where lower carbon content is deemed appropriate. 4. API 5L pipes exhibit higher minimum yield strength and tensile strength than ASTM A53 pipes. This outcome stems from the increased carbon content and more stringent manufacturing process employed for API 5L pipes. Conversely, ASTM A53 pipes possess lower yield and tensile strength requirements, rendering them more suitable for general-purpose applications. 5. API 5L pipes offer various coating options, including black varnish, 3PE, FBE, among others, depending on the specific application requirements. In contrast, ASTM A53 pipes are typically hot-dipped galvanized to enhance corrosion resistance. In conclusion, API 5L and ASTM A53 steel pipes differ in scope, manufacturing processes, chemical compositions, mechanical properties, and coating options. The appropriate choice of pipe hinges upon specific application requirements, such as the nature of the conveyed fluid, operating conditions, and desired strength and durability.

Q:Can steel pipes be used for both high-pressure and low-pressure systems?: Yes, steel pipes can be used for both high-pressure and low-pressure systems. Steel pipes are known for their strength and durability, making them suitable for various applications. They are capable of withstanding high pressures without deformation or leakage, while also being reliable for low-pressure systems.

Q:Can steel pipes be used for underground power transmission?: Yes, steel pipes can be used for underground power transmission. Steel pipes are commonly used in underground power transmission systems due to their durability, strength, and resistance to corrosion. They provide a protective casing for the power cables, ensuring their safety and preventing damage from external factors such as moisture, soil movements, and potential impacts. Steel pipes also allow for easy installation, maintenance, and repair of the power transmission system. Additionally, their ability to withstand high pressure and temperature makes them suitable for carrying the high voltage electricity required for power transmission. Overall, steel pipes are a reliable and efficient choice for underground power transmission.

Q:What type of steel pipe for security windows?: Stainless steel security window generally use 25 square tubes and 19 round tubes! 25/38 tubes and 22 round tubes are also available!

Q:How long are the seamless tubes? Are they six meters long?: 6 meters of a root in general need to be customized, seamless tubes are mostly seven meters above the variable foot

Q:What are the factors affecting the lifespan of steel pipes?: The lifespan of steel pipes can be influenced by several factors. 1. Corrosion is a primary factor that can considerably diminish the lifespan of steel pipes. Over time, exposure to moisture, chemicals, and other corrosive elements can result in rusting and degradation of the pipe material. 2. The environment in which the steel pipes are installed plays a vital role in their longevity. Extreme temperatures, humidity, and exposure to various weather conditions can expedite the corrosion process and weaken the pipe structure. 3. The quality of the water flowing through the steel pipes can also affect their lifespan. Water with high levels of acidity or alkalinity, excessive chlorine, or other contaminants can cause corrosion and deterioration of the pipe material. 4. The way steel pipes are installed can impact their lifespan. Poor installation practices, such as inadequate support or incorrect alignment, can create stress points and structural weaknesses, making the pipes more susceptible to failure. 5. Regular maintenance and timely repairs are crucial for maximizing the lifespan of steel pipes. Proper cleaning, inspection, and corrosion protection measures can help identify and address potential issues before they escalate and cause significant damage. 6. The design and quality of steel used in pipe manufacturing are important factors in determining their lifespan. High-quality steel with appropriate alloy composition and thickness provides better resistance to corrosion and mechanical stress, ensuring a longer lifespan. 7. The durability of steel pipes can be influenced by the load and pressure they are subjected to. Excessive pressure or frequent variations in pressure can stress the pipe walls, leading to fatigue or failure over time. By considering and addressing these factors, it is possible to extend the lifespan of steel pipes and ensure their reliable performance over an extended period of time.

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