• Seamless steel tube API 5L of high quality and inexpensive System 1
  • Seamless steel tube API 5L of high quality and inexpensive System 2
  • Seamless steel tube API 5L of high quality and inexpensive System 3
Seamless steel tube API 5L of high quality and inexpensive

Seamless steel tube API 5L of high quality and inexpensive

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
25 m.t.
Supply Capability:
10000 m.t./month

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1、Structure of Seamless steel tube API 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.

 

2、‍‍Main Features of Seamless steel tube API 5L:

• High manufacturing accuracy

• High strength

• Good visual effect

• Reasonable price 

• Small inertia resistance

• Strong heat dissipation ability

 

3、Seamless steel tube API 5L 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

 

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) Ends:Beveled or square cut,plastic capped,painted.
5) Packing:bundles wrapped with strong steel strip,seaworthy packing. 

6) Surface:black lacquered,varnish coating or galvanized.
 

4、Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT

 

5、FAQ of Seamless steel tubeAPI 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.

 

6、Seamless steel tube API 5L  Images: ‍‍

 

Q: How are steel pipes used in the construction of dams and water reservoirs?
Steel pipes are used in the construction of dams and water reservoirs primarily for their strength and durability. They are commonly used to transport water within the dam or reservoir, as well as for drainage systems. Steel pipes are also utilized for the construction of intake and outlet structures, penstocks, and other components that require a robust and reliable material to withstand the high pressure and heavy loads associated with dam operation.
Q: Can steel pipes be used for oil and gas well production?
Yes, steel pipes are commonly used for oil and gas well production due to their high strength, durability, and resistance to corrosion.
Q: What is the maximum length of steel pipes available?
The maximum length of steel pipes available can vary depending on the manufacturer and specific application. However, steel pipes can typically be found in lengths ranging from 20 feet (6 meters) to 40 feet (12 meters) or even longer in some cases.
Q: Can steel pipes be used for solar power systems?
Indeed, solar power systems can utilize steel pipes. In the realm of solar power systems, steel pipes find widespread usage in diverse applications such as constructing support structures, mounting systems, and piping systems for circulating heat transfer fluids. The reason behind the preference for steel pipes lies in their robustness, longevity, and ability to withstand various environmental conditions. These pipes possess the capability to bear the weight of solar panels and support structures, as well as endure the impact of wind and other external elements. Moreover, steel pipes can be easily tailored and welded to cater to specific project requirements. All in all, when it comes to solar power systems, steel pipes emerge as a dependable and cost-efficient alternative.
Q: Can steel pipes be used for structural supports in buildings?
Yes, steel pipes can be used for structural supports in buildings. Steel pipes are known for their strength, durability, and ability to withstand heavy loads. They have high tensile strength, which means they can withstand large amounts of tension and compression without breaking or deforming. This makes them ideal for structural applications in buildings where strong and stable supports are required. Steel pipes can be used for various purposes such as columns, beams, trusses, and even as the main support for the entire building. They are also versatile and can be easily fabricated and customized to fit specific design requirements. Additionally, steel pipes are resistant to fire, corrosion, and pests, making them a reliable choice for long-term structural support in buildings.
Q: What is the weight of a steel pipe?
The weight of a steel pipe can vary depending on its size, length, and thickness. To determine the weight, you would need specific measurements of the pipe.
Q: What are the different methods of threading steel pipes?
There are several methods of threading steel pipes, including manual threading, machine threading, and dielectric threading. Manual threading involves using a manual pipe threader or a handheld die to create the threads on the pipe. Machine threading, on the other hand, utilizes power-driven machines that can thread multiple pipes simultaneously, increasing efficiency and accuracy. Dielectric threading is a specialized method that uses a high-frequency electrical current to generate threads on the pipe, which is commonly used for stainless steel pipes.
Q: How do you calculate the pipe pressure drop coefficient for steel pipes?
To determine the pipe pressure drop coefficient for steel pipes, one can utilize the Darcy-Weisbach equation. This equation establishes a relationship between the pressure drop within a pipe and various factors, including the flow rate, pipe diameter, pipe length, and the properties of the fluid being conveyed. The pressure drop coefficient, also known as the friction factor or the Darcy-Weisbach friction factor, is represented by the symbol f and is dimensionless. It denotes the resistance to flow within the pipe. The value of f is contingent upon the flow regime, which can either be laminar or turbulent. In the case of laminar flow, occurring at low flow rates or with viscous fluids, the pressure drop coefficient can be determined through employment of the Hagen-Poiseuille equation. This equation relates the pressure drop to the fluid viscosity, pipe length, pipe diameter, and flow rate. However, for turbulent flow, arising at higher flow rates, the calculation of the pressure drop coefficient becomes more intricate. It is influenced by the roughness of the pipe wall, which impacts flow resistance. Typically, roughness is quantified using the relative roughness, defined as the ratio of the pipe wall roughness to the pipe diameter. To compute the pressure drop coefficient for turbulent flow in steel pipes, empirical correlations or Moody's diagram can be utilized. Moody's diagram provides a graphical depiction of the friction factor as a function of the Reynolds number and relative roughness. The Reynolds number characterizes the flow regime and is determined using fluid properties, flow rate, and pipe dimensions. By identifying the intersection of the Reynolds number and relative roughness on Moody's diagram, one can ascertain the corresponding pressure drop coefficient. It is crucial to note that the pressure drop coefficient for steel pipes may vary depending on specific pipe dimensions, surface roughness, and fluid properties. Consequently, it is advisable to refer to relevant standards or engineering sources for precise and current values of the pressure drop coefficient for steel pipes in a particular application.
Q: Can steel pipes be used for stormwater management systems?
Yes, steel pipes can be used for stormwater management systems. Steel pipes are commonly used in stormwater management systems due to their durability, strength, and resistance to corrosion. They can efficiently handle the flow of stormwater and are suitable for underground installation, making them a reliable choice for managing stormwater runoff.
Q: What is the hardness of steel pipes?
The specific grade and manufacturing process can cause the hardness of steel pipes to vary. Generally, alloys are used to make steel pipes, which offer a combination of strength and toughness. To determine the hardness of steel pipes, different methods like Rockwell or Brinell hardness tests can be carried out. These tests gauge the steel's resistance to indentation or penetration using a standardized indenter. The hardness of steel pipes is usually represented as a numerical value on a scale, like the Rockwell hardness scale (e.g., HRC or HRB) or the Brinell hardness scale (e.g., HB). The hardness of steel pipes is significant as it indicates their capacity to endure physical stresses, such as pressure, impact, or wear, in various applications such as construction, oil and gas transportation, and manufacturing.

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