Schedule 40 ASTM A53 API 5L GR.B Carbon Seamless Steel Tubes X70 CNBM

Schedule 40 ASTM A53 API 5L GR.B Carbon Seamless Steel Tubes X70 CNBM System 1

Schedule 40 ASTM A53 API 5L GR.B Carbon Seamless Steel Tubes X70 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 are steel pipes graded?: Steel pipes are graded based on several factors to determine their quality and suitability for specific applications. The grading system for steel pipes typically includes parameters such as the chemical composition, mechanical properties, manufacturing method, and testing standards. 1. Chemical composition: Steel pipes are graded based on the elements present in their composition. This includes the amount of carbon, manganese, phosphorus, sulfur, and other alloying elements. The chemical composition greatly influences the pipe's strength, corrosion resistance, and other properties. 2. Mechanical properties: The mechanical properties of steel pipes are crucial for determining their strength, flexibility, and resistance to pressure and temperature. These properties include tensile strength, yield strength, elongation, hardness, and impact toughness. Pipes with higher mechanical properties are generally graded higher. 3. Manufacturing method: Steel pipes can be manufactured using various methods, such as seamless, welded, or ERW (Electric Resistance Welding). The manufacturing method affects the pipe's integrity, dimensional accuracy, and overall quality. Seamless pipes, for example, are considered to have higher quality due to their uniformity and absence of weld seams. 4. Testing standards: Steel pipes are graded based on their adherence to specific testing standards. These standards ensure that the pipes meet the required quality criteria and are suitable for their intended applications. Common testing standards include ASTM (American Society for Testing and Materials), API (American Petroleum Institute), and EN (European Norms). Based on these factors, steel pipes are often graded using alphanumeric codes or specifications. For instance, pipes used in oil and gas industry may be graded as API 5L (American Petroleum Institute) or pipes used for structural purposes may be graded as ASTM A500 (American Society for Testing and Materials). In conclusion, steel pipes are graded based on their chemical composition, mechanical properties, manufacturing method, and adherence to testing standards. These grades help customers and manufacturers in selecting the appropriate pipes for specific applications, ensuring safety, durability, and efficiency in various industries.

Q: How big is the seamless steel tube of DN50?: DN refers to the nominal diameter, the outer diameter is 60.3mm

Q: Can steel pipes withstand high temperatures?: Yes, steel pipes can withstand high temperatures. Steel is a strong and durable material that has high heat resistance. It can retain its strength and structural integrity even when exposed to extreme heat, making it suitable for various high-temperature applications such as industrial furnaces, power plants, and steam pipelines.

Q: Are steel pipes suitable for wastewater pumping stations?: Yes, steel pipes are suitable for wastewater pumping stations. Steel pipes are known for their durability and strength, making them an excellent choice for handling the harsh conditions and high-pressure requirements of wastewater pumping stations. They have the ability to withstand the corrosive nature of wastewater and can resist damage caused by chemicals and other aggressive substances commonly found in wastewater. Additionally, steel pipes are available in various sizes and thicknesses, allowing for customization to meet the specific needs of the pumping station. Furthermore, steel pipes can be easily welded and joined together, ensuring a secure and leak-free system. Overall, steel pipes offer a reliable and long-lasting solution for wastewater pumping stations.

Q: Can steel pipes be used for water supply lines?: Yes, steel pipes can be used for water supply lines. Steel pipes are commonly used in industrial and commercial applications for transporting water and other fluids. They offer a high level of durability and strength, making them suitable for high-pressure systems. Additionally, steel pipes have excellent resistance to corrosion, which is important for maintaining the quality and safety of the water supply. However, it is essential to ensure that the steel pipes used for water supply lines are properly coated or lined to prevent any potential contamination of the water.

Q: What is the maximum pressure that steel pipes can handle?: The maximum pressure that steel pipes can handle depends on various factors such as the grade and thickness of the steel, the diameter of the pipe, and the intended application. However, steel pipes are known for their high strength and durability, allowing them to withstand high pressure conditions. In general, steel pipes can handle pressures ranging from a few hundred PSI (pounds per square inch) to several thousand PSI, depending on the specific specifications and design considerations. It is crucial to consult engineering standards, industry guidelines, and relevant experts to determine the appropriate maximum pressure for a specific steel pipe.

Q: How do you calculate the thermal expansion of steel pipes?: To calculate the thermal expansion of steel pipes, you need to know the coefficient of thermal expansion (CTE) of the specific type of steel used. This value represents how much the steel material expands or contracts per unit length with each degree of temperature change. Once you have the CTE, you can multiply it by the initial length of the steel pipe and the temperature change to determine the thermal expansion. The formula is: Thermal Expansion = CTE x Initial Length x Temperature Change.

Q: How are steel pipes cleaned and flushed?: Steel pipes are cleaned and flushed using a variety of methods. One common method is high-pressure water jetting, where water is forcefully sprayed through the pipes to remove debris and sediments. Chemical cleaning agents are also used to dissolve any stubborn deposits. Additionally, mechanical methods such as using wire brushes or pigs (devices inserted into the pipes to scrape the interior) can be employed to remove any remaining buildup. Regular maintenance and inspection are crucial to ensure the cleanliness and efficiency of steel pipes.

Q: What are the different types of steel pipe elbows?: There are various industries and applications that commonly utilize different types of steel pipe elbows. These types encompass: 1. 90-degree elbows: Employed when redirecting fluid or gas flow requires a sharp 90-degree bend. They find extensive use in plumbing, construction, and industrial piping systems. 2. 45-degree elbows: Similar to 90-degree elbows, these elbows alter flow direction, but with a smaller angle. They are suitable for situations requiring a more gradual change in flow direction. 3. Long radius elbows: Differing from standard elbows, long radius elbows possess a larger curvature radius. This design minimizes fluid friction and pressure drop, making them ideal for applications necessitating smoother flow, such as high-flow systems or those involving viscous fluids. 4. Short radius elbows: In contrast, short radius elbows feature a smaller curvature radius. They are generally utilized in confined spaces where a compact design is essential, although they may lead to increased fluid friction and higher pressure drops. 5. Reducing elbows: These elbows are ideal for connecting pipes of varying diameters. With one end having a larger diameter and the other end with a smaller diameter, they enable a seamless transition between two pipes of different sizes. 6. Mitered elbows: Mitered elbows are tailor-made elbows fabricated by cutting and welding multiple pipe sections at specific angles. They are frequently employed when standard elbows cannot accommodate the required angle or when a unique design is necessary. In conclusion, the selection of the appropriate type of steel pipe elbow depends on factors such as the specific application, fluid flow requirements, space limitations, and compatibility with the piping system.

Q: How can seamless steel tubes be produced?: Tube mill, round tube billet, heating, perforation, three roll cross rolling, rolling or extrusion, removal of pipe, sizing (or reducing diameter), cooling, straightening, water pressure test (or flaw detection), marking, storage, cold rolling and hot rolling. Generally cold rolling, because of high accuracy.

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