• Carbon Seamless Steel Pipe API 5L of 4 Inch Hot Sale Structuer Application System 1
  • Carbon Seamless Steel Pipe API 5L of 4 Inch Hot Sale Structuer Application System 2
  • Carbon Seamless Steel Pipe API 5L of 4 Inch Hot Sale Structuer Application System 3
Carbon Seamless Steel Pipe API 5L of 4 Inch Hot Sale Structuer Application

Carbon Seamless Steel Pipe API 5L of 4 Inch Hot Sale Structuer Application

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
30 m.t.
Supply Capability:
12000 m.t./month

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 1、Structure of Carbon Seamless Steel  Pipe API 5L of 4 Inch

Seamless pipe is formed by drawing a solid billet over a piercing rod to create the hollow shell.

As the manufacturing process does not include any welding, seamless pipes are perceived to be stronger and more reliable.

Historically seamless pipe was regarded as withstanding pressure better than other types, and was often more easily available than welded pipe.

 

Standard: GB3087: Seamless Steel Tubes for Low and Medium Pressure Boiler

 

2‍‍Main Features of the Seamless Pipe API 5L of 4 Inch

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3Seamless Pipe API 5L of 4 Inch Specification

Standard

GB, DIN, ASTM

ASTM A106-2006, ASTM A53-2007

Grade

10#-45#, 16Mn

10#, 20#, 45#, 16Mn

Thickness

8 - 33 mm

Section Shape

Round

Outer Diameter

133 - 219 mm

Place of Origin

Shandong, China (Mainland)

Secondary Or Not

Non-secondary

Application

Hydraulic Pipe

Technique

Cold Drawn

Certification

API

‍Surface Treatment

factory state or painted black

‍Special Pipe

API Pipe

Alloy Or Not

Non-alloy

Length

5-12M

Outer Diameter

21.3-610mm

Grade 

20#, 45#, Q345, API J55, API K55, API L80, API N80, API P110, A53B

Standard

ASME, ASTM

 

 

4Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT

 

5FAQ of Seamless Pipe API 5L of 4 Inch:  

①How is the quality of your products?
    Our products are manufactured strictly according to national and internaional standard, and we take a test 
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.

②How about price?
    Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.

③Why should you chose us?
    Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.

 

6‍‍Seamless Pipe API 5L of 4 Inch Images ‍‍

Carbon Seamless Steel Pipe API 5L of 4 Inch Hot Sale Structuer Application

Carbon Seamless Steel Pipe API 5L of 4 Inch Hot Sale Structuer Application

Carbon Seamless Steel Pipe API 5L of 4 Inch Hot Sale Structuer Application

 

Q:How are steel pipes used in HVAC systems?
Steel pipes are commonly used in HVAC systems for various purposes. They are used for transporting fluids such as water, steam, and refrigerant throughout the system. These pipes are durable and resistant to high temperatures and pressures, making them suitable for the demanding conditions of HVAC applications. They are used for distributing and circulating the heated or cooled air, as well as for connecting different components of the system, including boilers, chillers, heat exchangers, and air handlers. Additionally, steel pipes are often used for ventilation and exhaust purposes in HVAC systems.
Q:How do you prevent freezing in steel pipes during cold weather?
To avoid freezing in steel pipes during cold weather, there are various steps that can be taken: 1. Insulating the pipes proves effective in safeguarding them from freezing. Utilize insulation sleeves or wraps to cover the pipes, especially in areas where they are exposed to low temperatures. Insulation aids in retaining heat and preventing the pipes from reaching freezing temperatures. 2. Identify and seal any air leaks around the pipes that allow cold air to enter. Use caulking or weatherstripping to seal these gaps and prevent the pipes from being exposed to cold air. 3. It is important to maintain a consistent temperature in the vicinity of the pipes. Ensure that the area is adequately heated and insulated. This will help keep the temperature above freezing and prevent the pipes from freezing. In extremely low temperatures, consider utilizing heat tape or pipe heating cables to provide additional warmth. 4. Allowing a small, continuous trickle of water to flow through the pipes can help prevent freezing. The flowing water generates heat and inhibits the formation of ice within the pipes. However, this method should only be used as a last resort due to potential water wastage. 5. If the steel pipes are located in an area that is not regularly used or if freezing weather is anticipated, it may be advisable to completely drain the pipes. Turn off the water supply and open all faucets to allow the water to drain out. This eliminates any standing water that could freeze and potentially cause the pipes to burst. It is crucial to note that prevention is key, as frozen steel pipes can result in expensive damages and water leaks. By implementing these measures, you can safeguard your steel pipes and ensure their functionality during cold weather.
Q:What is the difference between API 5L and ASTM A53 steel pipes?
API 5L and ASTM A53 are two widely used standards for carbon steel pipes. While they both serve similar purposes, there are some key differences between them. 1. Scope: API 5L covers seamless and welded steel pipes for transportation of oil, gas, water, and other fluids. It also includes plain-end, threaded-end, and belled-end pipe types. On the other hand, ASTM A53 is a standard specification for seamless and welded black and hot-dipped galvanized steel pipes used for mechanical and pressure applications. 2. Manufacturing process: API 5L pipe is produced through a hot-rolling process, whereas ASTM A53 pipe is produced through a hot-rolling or cold-drawing process. This difference in manufacturing process affects the pipe's chemical composition and mechanical properties. 3. Chemical composition: API 5L pipe typically has a higher carbon content compared to ASTM A53 pipe. This is because API 5L pipe is used for conveying oil, gas, and water, which often require higher strength and durability. ASTM A53 pipe, on the other hand, is used for mechanical and pressure applications, where lower carbon content is suitable. 4. Mechanical properties: API 5L pipe has higher minimum yield strength and tensile strength compared to ASTM A53 pipe. This is due to the higher carbon content and stricter manufacturing process of API 5L pipe. ASTM A53 pipe has lower yield and tensile strength requirements, making it more suitable for general-purpose applications. 5. Coating options: API 5L pipe can be produced with various coating options such as black varnish, 3PE, FBE, and others, depending on the application requirements. ASTM A53 pipe is usually hot-dipped galvanized for corrosion resistance. In summary, API 5L and ASTM A53 steel pipes have different scopes, manufacturing processes, chemical compositions, mechanical properties, and coating options. Choosing the right pipe depends on the specific application requirements, such as the type of fluid being transported, the operating conditions, and the desired strength and durability.
Q:How do you determine the weight per foot of a steel pipe?
To determine the weight per foot of a steel pipe, you need to know its outer diameter, wall thickness, and the density of steel. Using these measurements, you can calculate the cross-sectional area of the pipe, which is then multiplied by the length of the pipe to find its volume. Finally, multiplying the volume by the density of steel gives you the weight per foot of the steel pipe.
Q:What is galvanized steel pipe?
Galvanized steel pipe is a type of steel pipe that has been coated with a layer of zinc, which helps protect it from corrosion and rust. This coating also increases the pipe's longevity and makes it suitable for various applications, including plumbing, construction, and outdoor structures.
Q:Can galvanized steel tubes simmer?
I make the steel pipe, galvanized pipe and water conveying pipe material is the same, can be bent, specific to what to look at the furnace, can refer to a single material
Q:Can steel pipes be used for conveying potable water?
Yes, steel pipes can be used for conveying potable water. However, there are some considerations and precautions that need to be taken into account. Steel pipes are strong and durable, making them suitable for transporting water over long distances. They are also resistant to corrosion and can withstand high pressure. To ensure the safety and quality of the water being transported, it is important to use pipes that are specifically designed and manufactured for potable water applications. These pipes are often coated or lined with materials that prevent the leaching of contaminants into the water, such as epoxy or cement mortar lining. Additionally, regular maintenance and inspections should be conducted to prevent the buildup of sediments or rust that could affect the water quality. It is worth noting that steel pipes can be more expensive compared to other materials like plastic or copper. However, their longevity and reliability make them a cost-effective choice in the long run. It is also important to comply with local regulations and standards regarding the use of steel pipes for conveying potable water to ensure the health and safety of consumers.
Q:Are steel pipes resistant to earthquakes?
Steel pipes are generally more resistant to earthquakes compared to other materials due to their strength and flexibility. However, their ability to withstand seismic events depends on various factors such as the design, installation, and support systems in place. Overall, steel pipes can provide a higher level of earthquake resistance, but proper engineering and construction practices are crucial to ensure their effectiveness.
Q:How do you determine the maximum allowable stress for a steel pipe?
To determine the maximum allowable stress for a steel pipe, several factors need to be considered. Firstly, the type of steel used in the pipe is crucial as different types of steel have different mechanical properties and strengths. Secondly, the dimensions and thickness of the pipe play a significant role in determining its maximum allowable stress. Thicker pipes generally have higher allowable stresses compared to thinner ones. Additionally, it is important to consider the operating conditions under which the pipe will be subjected. This includes factors such as the temperature, pressure, and the type of fluid flowing through the pipe. These conditions can greatly affect the maximum allowable stress as high temperatures or corrosive fluids may weaken the steel and reduce its strength. To determine the maximum allowable stress, engineers typically refer to industry standards and codes such as the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code and the American Petroleum Institute (API) standards. These standards provide guidelines and formulas for calculating the maximum allowable stress based on the material properties, dimensions, and operating conditions of the pipe. It is important to note that determining the maximum allowable stress is a critical step in ensuring the structural integrity and safety of the steel pipe. It requires a thorough understanding of the materials, design considerations, and industry standards. Therefore, it is recommended to consult with experienced engineers or professionals who specialize in piping design and analysis to accurately determine the maximum allowable stress for a steel pipe.
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.

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