Schedule 40 ASTM A53 API 5L GR.B Carbon Seamless Steel Tubes ST37 CNBM

Schedule 40 ASTM A53 API 5L GR.B Carbon Seamless Steel Tubes ST37 CNBM System 1

Schedule 40 ASTM A53 API 5L GR.B Carbon Seamless Steel Tubes ST37 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:What are the different types of pipe coatings used for corrosion protection?: There are several different types of pipe coatings used for corrosion protection. These coatings are applied to the exterior surface of pipes to prevent or delay corrosion, ensuring the longevity and integrity of the pipes. Some of the commonly used pipe coatings for corrosion protection include: 1. Fusion-Bonded Epoxy (FBE) Coatings: FBE coatings are widely used for corrosion protection due to their excellent adhesion and resistance to chemicals, moisture, and abrasion. These coatings are applied by heating the pipe and spraying it with epoxy powder, which then melts and forms a protective layer upon cooling. 2. Polyethylene (PE) Coatings: PE coatings are known for their flexibility and resistance to impact and chemicals. These coatings are typically applied by extrusion or wrapping methods and provide excellent resistance against water, soil, and other corrosive substances. 3. Polyurethane (PU) Coatings: PU coatings offer good resistance to chemicals, moisture, and mechanical damage. They are commonly used for underground pipelines and are applied by spraying or brush coating methods. 4. Coal-Tar Enamel Coatings: Coal-tar enamel coatings are suitable for protecting pipes exposed to highly corrosive environments such as marine conditions or underground applications. They are typically applied by hot or cold wrapping methods and provide excellent resistance to water, acids, and alkalis. 5. Metallic Coatings: Metallic coatings such as zinc, aluminum, or zinc-aluminum alloys are often used as sacrificial coatings to protect the underlying steel pipes. These coatings corrode preferentially, sacrificing themselves to protect the pipe from corrosion. 6. Asphalt Coatings: Asphalt coatings provide a robust barrier against moisture, chemicals, and soil. They are typically applied by hot or cold wrapping methods and are commonly used for underground pipelines. It is important to consider factors such as the specific environment, temperature, and expected lifespan of the pipes when selecting the appropriate type of pipe coating for corrosion protection.

Q:What is the difference between steel pipes and PEX pipes?: Steel pipes are made from steel, a durable and strong material, while PEX pipes are made from cross-linked polyethylene, a flexible and lightweight material. Steel pipes are typically used for high-pressure applications, such as plumbing systems in commercial buildings, while PEX pipes are commonly used in residential plumbing due to their ease of installation, resistance to freezing and bursting, and lower cost. Additionally, steel pipes require threading and soldering for connections, while PEX pipes use push-fit or crimp fittings, making them easier to work with.

Q:Can steel pipes be used for wastewater treatment facilities?: Yes, steel pipes can be used for wastewater treatment facilities. Steel pipes are commonly used in wastewater treatment plants due to their durability, strength, and resistance to corrosion. They can efficiently transport and distribute wastewater throughout the facility, ensuring its proper treatment and disposal. Additionally, steel pipes can withstand the harsh conditions and chemicals often present in wastewater treatment processes, making them a reliable choice for this application.

Q:What are the different methods of joining steel pipes for high-pressure applications?: There are several methods of joining steel pipes for high-pressure applications. These include butt welding, socket welding, threaded connections, and flanged connections. Butt welding involves joining the ends of two pipes by heating them and then pressing them together to create a strong and seamless connection. Socket welding involves inserting one pipe into the socket of another and then welding them together. Threaded connections involve screwing together two pipes using threaded fittings. Flanged connections involve using flanges to connect two pipes by bolting them together with gaskets to ensure a tight and leak-free joint. Each method has its own advantages and is chosen based on the specific requirements of the high-pressure application.

Q:What is the difference between black steel pipes and galvanized steel pipes?: Black steel pipes are made of carbon steel and are typically used in gas or oil lines, while galvanized steel pipes are coated with a layer of zinc to protect against corrosion. Galvanized pipes are commonly used in plumbing systems and outdoor applications.

Q:Are steel pipes suitable for hydronic heating systems?: Yes, steel pipes are suitable for hydronic heating systems. Steel pipes are known for their durability and strength, making them a reliable choice for transporting hot water or steam in a hydronic heating system. They can withstand high temperatures and pressures, ensuring efficient heat transfer throughout the system. Additionally, steel pipes are resistant to corrosion, which is important in preventing leaks or damage to the pipes over time. However, it is essential to properly insulate steel pipes to minimize heat loss and improve energy efficiency in the hydronic heating system. Overall, steel pipes are a popular and suitable option for hydronic heating systems due to their reliability, durability, and ability to handle the demands of heating water or steam.

Q:What's the material of Q325 steel pipe?: In terms of deoxidation methods, F, B, Z can be expressed as boiling steel, flat killed steel, killed steel and boiling steel. They are deoxidized steel, which is of poor plasticity and toughness. Welded joints made of this material are susceptible to cracks when subjected to dynamic loads. Should not work at low temperatures, sometimes hardening. In contrast, calming steel is excellent and uniform, with good plasticity and toughness.

Q:Can steel pipes be used for gas distribution?: Yes, steel pipes can be used for gas distribution. Steel pipes are commonly used for transporting natural gas and other gases due to their high strength, durability, and resistance to corrosion. They can withstand high pressure and are suitable for long-distance gas distribution networks. However, it is important to ensure proper materials and installation techniques are used to prevent any potential safety hazards.

Q:What is the difference between seamless and welded steel pipes?: The main difference between seamless and welded steel pipes lies in their manufacturing process. Seamless steel pipes are made by piercing a solid billet to form a hollow tube, while welded steel pipes are formed by rolling a flat sheet of steel into a tube and then welding the seam. This difference in manufacturing leads to varying characteristics such as strength, appearance, and cost. Seamless pipes are generally considered to have higher strength and are more aesthetically pleasing, but they are also more expensive to produce. Welded pipes, on the other hand, are more cost-effective and suitable for less demanding applications.

Q:What is the electrical conductivity of steel pipes?: Due to its metallic nature, steel pipes possess a notable degree of electrical conductivity. The specific composition and properties of the steel employed can influence the electrical conductivity of these pipes. Typically, steel exhibits a conductivity range of 6.99 × 10^6 to 9.64 × 10^6 siemens per meter (S/m) at room temperature. Consequently, steel pipes are capable of effectively conducting electricity and finding application in diverse fields, including electrical transmission and grounding systems.

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