• Carbon Seamless Steel Pipe with High Quality and Best Price System 1
  • Carbon Seamless Steel Pipe with High Quality and Best Price System 2
  • Carbon Seamless Steel Pipe with High Quality and Best Price System 3
Carbon Seamless Steel Pipe with High Quality and Best Price

Carbon Seamless Steel Pipe with High Quality and Best Price

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

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API SPEC 5L● Full series of products provides an easier access for one stop purchase
▲ Line pipe
▲ Tubing and casing
▲ L & M & H boiler tube
▲ Gas cylinder tube & pipe
▲ Mechanical & Structural pipe
▲ Ship-building tube & pipe
▲ Automobile tube & pipe 

 

1Structure of Seamless Pipe API SPEC 5L: 

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: API SPEC 5L
● Application: To be used for conveying gas, water, and
petroleum for oil and natural gas industries

 

 

2‍‍Main Features of the Seamless Pipe API SPEC 5L:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3Seamless PipeAPI SPEC 5LSpecification

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

 

1) Material:20#(ASTM A 106/A53 GRB.API5LGRB,GB),45#,16Mn,10#.

2) Specification range:OD:21.3-610mm,WT:6-70mm,length:6-12m or according to the requirement of clients.

3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above standards,we can also supply seamless steel pipe with standard of DIN,JIS,and so on,and also develop new products according to the requirements of our clients!
4) Surface:black lacquered,varnish coating or galvanized.
5) Ends:Beveled or square cut,plastic capped,painted.
6) Packing:bundles wrapped with strong steel strip,seaworthy packing. 

 

 

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 SPEC 5L:  

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 SPEC 5L Images

Carbon Seamless Steel Pipe with High Quality and Best Price

Carbon Seamless Steel Pipe with High Quality and Best Price

Carbon Seamless Steel Pipe with High Quality and Best Price

 

Q: Are steel pipes suitable for industrial cooling systems?
Indeed, steel pipes prove to be generally well suited for industrial cooling systems. Being a robust and long-lasting material, steel can endure the elevated pressures and temperature fluctuations commonly encountered in such systems. Furthermore, its exceptional resistance to corrosion renders it an ideal choice for utilization with water or other coolants. Moreover, steel pipes exhibit commendable thermal conductivity, facilitating efficient heat transfer during the cooling procedure. Additionally, these pipes are conveniently accessible and cost-effective, rendering them highly favored within industrial settings.
Q: How are steel pipes used in the construction of offshore oil rigs?
Steel pipes are used in the construction of offshore oil rigs for various purposes. They are primarily used for drilling and extracting oil from deep-sea wells. These pipes are durable and able to withstand harsh offshore conditions, making them ideal for transporting oil and gas from the wells to the surface. Additionally, steel pipes are used in the construction of the rig's infrastructure, including the installation of risers, production lines, and various subsea systems. Overall, steel pipes play a crucial role in ensuring the functionality and integrity of offshore oil rigs.
Q: How are steel pipes protected against lightning strikes?
Steel pipes are typically protected against lightning strikes through the use of lightning rods and grounding systems. These measures help to divert the electrical energy from a lightning strike away from the steel pipes, preventing damage or potential accidents.
Q: What is the difference between steel pipe and tubing?
Steel pipe and tubing serve various purposes, but they possess distinct dissimilarities. The fundamental distinction between them stems from their shape and dimensions. Steel pipe, ordinarily circular in shape, features a hollow interior. It is manufactured in a range of sizes and thicknesses to accommodate diverse pressure and temperature prerequisites. Steel pipe frequently finds employment in construction, plumbing, and the oil and gas industries for the conveyance of fluids or gases. Conversely, steel tubing can adopt a variety of shapes, such as circular, square, and rectangular. Unlike steel pipe, tubing is typically evaluated by its outer diameter and wall thickness. Structural applications, such as building frames, automotive components, and machinery, often employ steel tubing. Another divergence between steel pipe and tubing lies in their manufacturing processes. Steel pipe is typically fashioned from solid steel billets, which are heated and stretched to produce a seamless or welded tube. On the other hand, tubing can be generated through diverse methods, including hot or cold rolling, welding, or extrusion. In terms of strength and durability, both steel pipe and tubing offer excellent qualities. Nevertheless, the particular requirements of the application will dictate which one is more suitable. Steel pipe is frequently selected for high-pressure or high-temperature applications, whereas steel tubing is favored for structural purposes or when a specific shape is necessary. In summary, the primary disparity between steel pipe and tubing resides in their shape, measurement techniques, and manufacturing procedures. While steel pipe possesses a round shape and is measured by its inner diameter, tubing can adopt various shapes and is usually measured by its outer diameter. Both steel pipe and tubing find extensive use in diverse industries, but the choice depends on the specific application and requirements.
Q: Can steel pipes be used for drinking water supply?
Drinking water supply can indeed utilize steel pipes. For water distribution systems, steel pipes are widely employed owing to their robustness, longevity, and capacity to endure high pressures. Nevertheless, it is crucial to highlight that the steel employed in these pipes must be purposefully engineered and endorsed for potable water applications. This ensures the water remains uncontaminated by any detrimental substances. Furthermore, regular inspections and appropriate upkeep are imperative to avert the development of rust or corrosion, which may impact water quality.
Q: How do you calculate the pipe flow rate coefficient for steel pipes?
In order to determine the pipe flow rate coefficient for steel pipes, one must consider several factors pertaining to the pipe's dimensions, material properties, and the fluid that is flowing through it. The pipe flow rate coefficient, which is also known as the discharge coefficient (Cd), is a dimensionless quantity that represents the efficiency of the fluid flow within the pipe. To calculate the pipe flow rate coefficient for steel pipes, the following steps should be followed: 1. Find the inside diameter (ID) of the steel pipe. This measurement corresponds to the internal cross-sectional area of the pipe through which the fluid passes. 2. Use the formula A = π * (ID/2)^2 to calculate the pipe's cross-sectional area (A). Here, π represents the mathematical constant pi (approximately 3.14). 3. Measure the pressure drop (∆P) across the steel pipe. This refers to the difference in pressure between the inlet and outlet of the pipe. 4. Measure the fluid flow rate (Q) through the pipe. This can be achieved by using flow meters or by determining the time it takes for a known volume of fluid to traverse the pipe. 5. Utilize the formula V = Q / A to calculate the velocity (V) of the fluid flowing through the pipe. In this equation, Q represents the fluid flow rate and A denotes the cross-sectional area of the pipe. 6. Employ the formula Cd = Q / (A * √(2 * ∆P / ρ)) to calculate the pipe flow rate coefficient (Cd). In this formula, ρ represents the fluid density. The equation is derived from Bernoulli's equation and incorporates the pressure drop, fluid flow rate, and fluid density. It is important to note that the pipe flow rate coefficient for steel pipes can vary depending on factors such as pipe roughness, fluid viscosity, and Reynolds number. Therefore, it is advisable to consult relevant engineering standards, such as the Darcy-Weisbach equation or the Hazen-Williams equation, to obtain more accurate values for specific pipe configurations and fluid properties.
Q: Can steel pipes be used for nuclear power plants?
Yes, steel pipes can be used for nuclear power plants. Steel is commonly used in the construction of nuclear power plants due to its strength, durability, and resistance to high temperatures and pressures. However, the specific type of steel and its properties must meet the rigorous safety and quality standards set by regulatory bodies to ensure the integrity and reliability of the nuclear power plant.
Q: Can steel pipes be used for offshore applications?
Yes, steel pipes can be used for offshore applications. Steel pipes are commonly used in offshore industries due to their durability, strength, and resistance to corrosion. Offshore applications such as oil and gas exploration, drilling, production, and transportation of fluids and gases often require the use of steel pipes. These pipes are designed to withstand harsh and corrosive environments found in offshore locations, including exposure to saltwater, extreme temperatures, and high pressure. Additionally, steel pipes can be manufactured to meet specific requirements for offshore projects, including size, thickness, and material grade, to ensure safety and reliability. Overall, steel pipes are a reliable and widely used choice for offshore applications.
Q: What are the safety measures to be followed while working with steel pipes?
When working with steel pipes, it is important to follow several safety measures to ensure the well-being of workers and prevent accidents. Some of the key safety measures include: 1. Personal Protective Equipment (PPE): Workers should always wear appropriate PPE, including safety glasses, steel-toed boots, gloves, and hard hats to protect themselves from potential hazards. 2. Proper Lifting Techniques: Steel pipes can be heavy, so workers should use proper lifting techniques, such as bending their knees and using their leg muscles, to prevent strain or injury to their back. 3. Secure Storage and Handling: Steel pipes should be stored in a secure and organized manner to prevent them from falling or causing any hazards. Workers should also use appropriate lifting equipment, such as cranes or forklifts, to handle heavy steel pipes safely. 4. Inspect Pipes for Defects: Before working with steel pipes, they should be inspected for any defects, such as cracks or corrosion, that could compromise their structural integrity. Damaged pipes should be replaced to avoid potential accidents. 5. Proper Welding and Cutting Techniques: When welding or cutting steel pipes, workers should follow proper techniques and use appropriate safety equipment, such as welding masks and fire-resistant clothing, to prevent burns, fires, or explosions. 6. Fall Protection: When working at heights or on elevated platforms, workers should use fall protection equipment, such as harnesses and safety nets, to prevent falls and injuries. 7. Adequate Ventilation: In enclosed spaces where welding or cutting activities take place, proper ventilation should be ensured to prevent the accumulation of harmful fumes or gases. 8. Fire Prevention: Steel pipes can be flammable, especially when cutting or welding. Therefore, it is crucial to have fire prevention measures in place, such as fire extinguishers and fire blankets, and to follow proper fire safety protocols. By adhering to these safety measures, workers can minimize the risks associated with working with steel pipes and create a safer working environment.
Q: Can steel pipes be used for air conditioning systems?
Yes, steel pipes can be used for air conditioning systems. Steel pipes are commonly used in HVAC (Heating, Ventilation, and Air Conditioning) systems as they are durable, can withstand high pressures, and are resistant to corrosion.

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