API 5L seamless steel pipe line pipe for liquid transportation

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 60000 m.t./month

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Packaging & Delivery

Packaging Detail:	in bundles by steel strips , and if required ,wrapped with PE cloth
Delivery Detail:	according to the quantity

Specifications

API 5L seamless steel pipe/ASTM A106/A53
1)A,B, X42, X46, X52, X56, X60, X65, X70
2)OD:13.7-6-762MM
3)WT: 1-80MM

API 5L seamless steel pipe/ASTM A106/A53

1)A,B, X42, X46, X52, X56, X60, X65, X70, St37,ST52,
2)OD:13.7-6-762MM
3)WT: 1-80MM
SCH20,40,80

1. ends can be Threaded and Coupling

2. Aplication :tramsmission of petroleum, nature gas,water,air ect

3. Pipe Coating:
   FBE (Fusion bong epoxy) coating
   3PE (Three layer polyethylene) coating
   3PP (Three layer polypropylene) coating
4. Cement mortar lining
    Internal lining for drinkable water
    Internal flow coating
5.Standard acc to: SY/T0135, SY/T0413, DIN30670/1/8, AWWAC205/210, etc

Steel grade	Machenic property			Chemical composition
	σ_s	σ_b	δ₅	C	Si	Mn	P	S	Nb	V	Ti	Cr	Ni	Cu
	min	min	min	max	max	max	max	max	min	min	min	max	max	max
A	207	311		0.21	-	0.90	0.04	0.05	-	-	-	-	-	-
B	241	413		0.26	-	1.15	0.04	0.05	-	-	-	-	-	-
X42	289	413		0.28	-	1.25	0.04	0.05	-	-	-	-	-	-
X46	317	434		0.30	-	1.35	0.04	0.05	-	-	-	-	-	-
X52	358	455		0.30	-	1.35	0.04	0.05	-	-	-	-	-	-
X56	386	489		0.26	-	1.35	0.04	0.05	0.005	0.02	0.03	-	-	-
X60	413	517		0.26	-	1.35	0.04	0.05	0.005	0.02	0.03	-	-	-
X65	448	530		0.26	-	1.40	0.04	0.05	0.005	0.02	-	-	-	-
X70	482	565		0.23	-	1.60	0.04	0.05	-	-	-	-	-	-

Q:What are the common sizes of steel pipes available?: The specific industry or application determines the availability of common sizes of steel pipes. However, different industries commonly use several standard sizes. These sizes are usually identified by their nominal pipe size (NPS) or outside diameter (OD). Steel pipes are commonly found in sizes such as 1/8 inch, ¼ inch, ½ inch, ¾ inch, 1 inch, 1 ¼ inch, 1 ½ inch, 2 inch, 2 ½ inch, 3 inch, 3 ½ inch, 4 inch, 5 inch, 6 inch, 8 inch, 10 inch, 12 inch, 14 inch, 16 inch, 18 inch, 20 inch, 24 inch, 26 inch, 30 inch, 36 inch, 42 inch, 48 inch, and 54 inch. These sizes are widely used in various applications, including plumbing, construction, oil and gas pipelines, structural supports, and industrial processes. It is important to note that these sizes may slightly differ according to industry standards or requirements. Moreover, steel pipes are available in different wall thicknesses known as schedules. The most commonly used schedules are schedule 40, schedule 80, schedule 160, and schedule XXS (extra extra strong). The schedule number indicates the pipe's wall thickness, with higher numbers indicating thicker walls. To summarize, the available common sizes of steel pipes range from 1/8 inch to 54 inches in diameter. These sizes are commonly used in different industries and applications, and their wall thickness can vary based on the specific schedule.

Q:How are steel pipes protected against corrosion?: Steel pipes are protected against corrosion through various methods such as coating them with corrosion-resistant materials like epoxy or zinc, cathodic protection using sacrificial anodes or impressed current systems, and maintaining a protective layer on the pipe's surface through regular maintenance and inspection.

Q:How are steel pipes protected against external mechanical damage?: Various methods are employed to safeguard steel pipes against external mechanical damage. One notable approach involves the utilization of protective coatings, which act as a physical barrier between the steel surface and external forces like impact or abrasion. Coatings can be applied using techniques such as painting, epoxy coating, or wrapping the pipe with materials such as polyethylene or polypropylene. Another means of protection is the application of external casing or encasement. This involves installing casing pipes around the steel pipes to provide an additional layer of defense. These casing pipes are typically composed of resilient materials such as concrete, PVC, or ductile iron, which are resistant to external mechanical damage. Moreover, steel pipes can be safeguarded through the implementation of supports and restraints. Properly designed supports and restraints aid in evenly distributing external forces and preventing excessive stress or deformation on the pipe. This can be achieved by employing hangers, clamps, or brackets to secure the pipe in place and minimize the risk of mechanical damage. Furthermore, protective measures can be employed to prevent accidental impacts or collisions that may harm the steel pipes. This can involve the installation of protective barriers, fencing, or warning signs to alert individuals to the presence of pipelines and prevent inadvertent damage. In conclusion, a combination of protective coatings, casing, supports, and preventive measures are utilized to ensure the protection of steel pipes against external mechanical damage. These measures are crucial in maintaining the structural integrity of the pipes and ensuring their long-term performance and reliability.

Q:How are steel pipes used in the construction of stormwater drainage systems?: Steel pipes are commonly used in the construction of stormwater drainage systems due to their durability and strength. They serve as underground conduits to efficiently transport stormwater away from built-up areas, preventing flooding and water damage. Steel pipes offer high resistance to external pressure and are capable of withstanding heavy loads, making them suitable for underground installations. Additionally, their corrosion-resistant properties ensure long-term effectiveness and minimize maintenance requirements. Overall, steel pipes are essential components in stormwater drainage systems, providing reliable and efficient water management solutions.

Q:How are steel pipes used in heating systems?: Steel pipes are commonly used in heating systems as they have excellent durability and heat resistance properties. These pipes are typically used to transport hot water or steam from a heating source, such as a boiler, to various parts of a building, including radiators or baseboard heaters. They are also used for circulating cooled water back to the heating source for reheating. The high strength and corrosion-resistant nature of steel pipes make them ideal for handling the high temperatures and pressures involved in heating systems, ensuring efficient heat transfer and long-lasting performance.

Q:What are the applications of steel pipes in the automotive industry?: Steel pipes are used in the automotive industry for a variety of applications, including exhaust systems, fuel lines, and structural components. They provide durability, corrosion resistance, and high strength, making them ideal for withstanding the harsh conditions and heavy loads experienced in automotive applications. Steel pipes also offer flexibility in design and can be tailored to meet specific requirements, ensuring efficient and reliable performance in vehicles.

Q:How do you connect steel pipes together?: To connect steel pipes together, there are several methods commonly used in various industries. One commonly used method is welding. Welding involves heating the ends of the steel pipes and then joining them together using a welding rod or wire. This method creates a strong and durable connection that is capable of withstanding high pressures and temperatures. Another method is threading, where threads are cut into the ends of the steel pipes. These threaded ends can then be screwed together using pipe fittings such as couplings or unions. Threading is commonly used for smaller diameter pipes and is advantageous as it allows for easy disassembly and reassembly of the pipes. Flanges can also be used to connect steel pipes together. Flanges are flat, circular discs with holes in them that can be bolted together. They provide a strong and secure connection, especially for large diameter pipes or pipes that need to be easily disconnected for maintenance or repairs. Pipe fittings such as couplings, tees, elbows, or reducers can also be used to connect steel pipes together. These fittings are typically made of steel or other materials and are designed to be welded, threaded, or connected using other methods like grooving or compression. It's important to note that the method used to connect steel pipes together will depend on various factors such as the pipe size, the application, the required strength, and the specific industry standards or codes that need to be followed. Therefore, it's essential to consult with a qualified professional or refer to industry-specific guidelines when choosing the appropriate method for joining steel pipes.

Q:How are steel pipes protected against corrosion in marine environments?: Steel pipes are protected against corrosion in marine environments through various methods, including the use of protective coatings, cathodic protection systems, and selecting corrosion-resistant materials.

Q:What is the difference between galvanized iron pipe and galvanized steel pipe? Or called different, in fact, is referred to as galvanized pipe?: Seamless steel pipe material is steel, but also seamless, high strength, used in high pressure, harsh environment occasions. The galvanized pipe is only made on the steel tube, which is similar to the so-called antirust paint

Q:How do steel pipes compare to other materials like PVC or copper pipes?: Steel pipes have numerous advantages over materials such as PVC or copper pipes. Firstly, their strength and durability make them ideal for high-pressure applications. They can withstand extreme temperatures and resist corrosion, making them suitable for both indoor and outdoor use. In contrast, PVC pipes are weaker and more prone to cracking and breaking under pressure or in extreme temperatures. Although copper pipes are durable, they can be susceptible to corrosion and may require additional protective coatings. Secondly, steel pipes have a longer lifespan compared to PVC or copper pipes. They are renowned for their longevity and can last for several decades without needing replacement. PVC pipes, although relatively inexpensive, have a shorter lifespan and may require more frequent replacement. Similarly, copper pipes can corrode over time and may need maintenance or replacement. Another advantage of steel pipes is their ability to handle a wide range of fluids and substances. They are commonly used in industrial applications where chemicals or corrosive materials may be present. PVC pipes, on the other hand, may not be suitable for handling certain chemicals or substances as they can react and cause damage to the pipe. Copper pipes, while generally safe for carrying water, may not be ideal for conveying certain chemicals or fluids. Additionally, steel pipes possess excellent fire resistance properties. In the event of a fire, they can withstand high temperatures and maintain their structural integrity, ensuring the safety and protection of the surrounding area. PVC pipes, however, can melt or deform under high heat, potentially causing structural damage. Although copper pipes are less prone to melting, they can still be affected by extreme heat and lose their strength. Nevertheless, steel pipes do have a few drawbacks. They tend to be heavier and more challenging to install compared to PVC or copper pipes. Additionally, they can be more expensive upfront, especially when compared to PVC pipes. However, considering their durability and longevity, steel pipes may offer better value in the long run. In conclusion, steel pipes provide numerous advantages over materials like PVC or copper pipes. They are strong, durable, resistant to corrosion, and have a longer lifespan. They can handle high-pressure applications and a wide range of fluids, making them suitable for various industrial and commercial uses. Although they may be more expensive and difficult to install, the benefits of steel pipes make them a reliable and cost-effective choice for many applications.

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