• High Quality API 5DP NS-1 Oilfield Drill Pipe System 1
  • High Quality API 5DP NS-1 Oilfield Drill Pipe System 2
  • High Quality API 5DP NS-1 Oilfield Drill Pipe System 3
High Quality API 5DP NS-1 Oilfield Drill Pipe

High Quality API 5DP NS-1 Oilfield Drill Pipe

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Loading Port:
China Main Port
Payment Terms:
TT or LC
Min Order Qty:
Negotiable m.t.
Supply Capability:
5000 Tons Per Month m.t./month

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Designations

 

Pipe body

 

Calculated weight

 

 

 

Upset dimensions

 

 

 

 

 

 

 

 

 

 

 

 

OD

 

Length of

Length of

Length of

Length of

Length end of

 

 

 

 

 

 

 

 

 

 

ID at End

 

 

Size

Nominal

OD

WT

ID

Plain end

Upset

 

internal

internal

external

external

pipe to taper

 

 

 

of Pipe

upset

taper

upset

taper

fade out

 

 

 

weight

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+1/8

±1/16

+1 1/2

Min.

Min.

Min.

Min.

Max.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-1/32

- 1/2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

in

lb/ft

in

in

in

lb/ft

lb/ft

in

in

in

in

in

in

in

in

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D

t

d

wpe

ew

Dou

dou

Liu

miu

Leu

meu

meu

Leu+meu

 

 

 

 

 

 

 

 

 

 

 

 

 

Internalupset

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 7/8

10.40

2.875

0.362

2.151

9.72

3.20

2.875

1 15/16

1 3/4

1 1/2

-

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9.50

3.500

0.254

2.992

8.81

4.40

3.500

2 1/4

1 3/4

-

-

-

-

-

 

3 1/2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13.30

3.500

0.368

2.764

12.31

4.40

3.500

1 15/16

1 3/4

1 1/2

-

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15.50

3.500

0.449

2.602

14.63

3.40

3.500

1 15/16

1 3/4

1 1/2

-

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

11.85

4.000

0.262

3.476

10.46

4.20

4.000

2 15/16

1 3/4

-

-

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14.00

4.000

0.330

3.340

12.93

4.60

4.250

2 3/4

1 3/4

2

-

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 1/2

13.75

4.500

0.271

3.958

12.24

5.20

4.750

3 3/8

1 3/4

-

-

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

16.25

5.000

0.296

4.408

14.87

6.60

5.000

3 3/4

1 3/4

-

-

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Externalupset

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 3/8

6.65

2.375

0.280

1.815

6.26

1.80

2.656

1.815

-

-

1 1/2

1 1/2

-

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 7/8

10.40

2.875

0.362

2.151

9.72

2.40

3.219

2.151

-

-

1 1/2

1 1/2

-

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9.50

3.500

0.254

2.992

8.81

2.60

3.938

2.992

-

-

1 1/2

1 1/2

-

4

 

3 1/2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13.30

3.500

0.368

2.764

12.31

4.00

3.938

2.602

2 1/4

2

1 1/2

1 1/2

-

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15.50

3.500

0.449

2.602

14.63

2.80

3.938

2.602

-

-

1 1/2

1 1/2

-

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

11.85

4.000

0.262

3.476

10.46

5.00

4.500

3.476

-

-

1 1/2

1 1/2

-

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14.00

4.000

0.330

3.340

12.93

5.00

4.563

3.340

-

-

1 1/2

1 1/2

-

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13.75

4.500

0.271

3.958

12.24

5.60

5.063

3.958

-

-

1 1/2

1 1/2

-

4

 

4 1/2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16.60

4.500

0.337

3.826

14.98

5.60

5.063

3.826

-

-

1 1/2

1 1/2

-

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20.00

4.500

0.430

3.640

18.69

5.60

5.063

3.640

-

-

1 1/2

1 1/2

-

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The manufacturing shop of steel pipe

 steel pipe

 

 steel pipe

 steel pipe

 steel pipe

The package of steel pipe

 steel pipe

 

 steel pipe

Q:What are the factors to consider when selecting steel pipes for a project?
When selecting steel pipes for a project, several factors need to be considered. These include the required strength and durability of the pipes, the intended application and environment, the size and dimensions needed, the corrosion resistance required, the budget constraints, and any specific industry or regulatory standards that need to be met. Additionally, factors like the availability and sourcing of the steel pipes, the ease of installation and maintenance, and the potential for future expansion or modifications should also be taken into account.
Q:How are steel pipes used in the manufacturing of bridges?
Steel pipes are commonly used in the manufacturing of bridges for various purposes such as the construction of bridge piers, support columns, and structural elements. These pipes provide strength, durability, and flexibility to withstand heavy loads and harsh environmental conditions. They are often used to create the framework and support systems of the bridge, ensuring stability and longevity. Additionally, steel pipes may be used for the transportation of fluids, such as water or gas, across the bridge.
Q:What is a flange and how is it used in steel pipes?
A flange is a flat, circular fitting that is attached to the end of a steel pipe. It is used to connect two pipes or fittings together, allowing for easy assembly and disassembly of the pipeline system. The flange provides a secure and leak-proof connection by bolting the flange to the adjacent flanges or equipment. It also allows for the attachment of valves, pumps, or other components to the pipeline. Overall, flanges play a crucial role in ensuring the integrity and functionality of steel pipes in various industrial applications.
Q:What is the flexibility of steel pipes?
Steel pipes are known for their exceptional flexibility, making them highly versatile and suitable for a wide range of applications. The flexibility of steel pipes refers to their ability to bend and withstand various forms of stress without breaking or deforming. This flexibility is primarily due to the inherent properties of steel, such as its high tensile strength and ductility. Steel pipes can be bent and formed into different shapes without compromising their structural integrity. This allows for easier installation and routing around obstacles, making them more adaptable for complex plumbing or piping systems. Additionally, the flexibility of steel pipes enables them to withstand external forces, such as ground movements or temperature fluctuations, without experiencing significant damage. The flexibility of steel pipes also makes them suitable for applications that require dynamic movement or expansion. For instance, in oil and gas pipelines or in heating and cooling systems, where temperature variations can cause expansion and contraction, steel pipes are able to accommodate these changes without causing leaks or failures. Furthermore, the flexibility of steel pipes contributes to their durability and longevity. The ability to withstand bending and stress helps prevent the formation of cracks or fractures that can lead to leaks or structural failures. This characteristic makes steel pipes a reliable choice for demanding environments, including high-pressure systems or corrosive conditions. In summary, the flexibility of steel pipes is a crucial attribute that allows for easy installation, adaptability to various conditions, and long-term reliability. With their exceptional flexibility, steel pipes are widely preferred in numerous industries and applications where strength, durability, and versatility are essential.
Q:What is the difference between steel pipe and PVC conduit?
Steel pipe and PVC conduit are both used for different purposes and have different characteristics. One of the main differences between steel pipe and PVC conduit is their material composition. Steel pipe is made of a sturdy and durable material, typically carbon steel or stainless steel. This makes it strong and resistant to impact, making it suitable for heavy-duty applications such as plumbing or structural support. On the other hand, PVC conduit is made of polyvinyl chloride, a type of plastic. PVC is lightweight, flexible, and easy to work with, making it ideal for electrical applications such as protecting and routing electrical wires. Another difference is their resistance to corrosion. Steel pipe is more resistant to corrosion than PVC conduit, especially when coated with protective layers such as zinc or epoxy. This makes steel pipe suitable for outdoor applications, underground installations, or environments with high moisture or corrosive elements. PVC conduit, while generally resistant to moisture and chemicals, may deteriorate over time when exposed to sunlight and can be damaged by certain chemicals. Cost is another factor to consider. Steel pipe is generally more expensive than PVC conduit due to its material and manufacturing process. However, steel pipe's durability and long lifespan make it a cost-effective choice in the long run, especially for applications that require high strength and longevity. PVC conduit, on the other hand, is relatively inexpensive and readily available, making it a more affordable option for many electrical projects. Lastly, installation methods differ between the two. Steel pipe is typically joined together using threaded connections or welded joints, requiring specialized tools and skills. PVC conduit, on the other hand, can be easily cut, assembled, and connected using PVC cement or fittings. This makes PVC conduit a more DIY-friendly option for electrical installations. In summary, the main differences between steel pipe and PVC conduit lie in their material composition, resistance to corrosion, cost, and installation methods. Steel pipe is strong, durable, and corrosion-resistant, making it suitable for heavy-duty applications. PVC conduit, on the other hand, is lightweight, flexible, and affordable, making it ideal for electrical projects.
Q:How much is the wall thickness standard of building 48?
Steel tube (Steel pipe) production technology development began in the bicycle manufacturing industry, the rise of the early nineteenth Century during the oil development, the two world war ships, boilers, aircraft manufacturing, manufacturing of power boiler after the Second World War, the development of chemical industry of petroleum and natural gas drilling and transportation, will effectively promote the the yield and quality of varieties, the development of steel tube industry.
Q:Can steel pipes be used for cooling systems?
Steel pipes are a viable option for cooling systems. They are frequently employed in different scenarios, such as cooling systems, because of their robustness, strength, and ability to withstand high temperatures and pressure. Industrial cooling systems, in particular, benefit from steel pipes due to the harsh environmental conditions and corrosive fluids they often encounter. Moreover, steel pipes possess outstanding heat conductivity, which facilitates efficient heat transfer, rendering them a dependable choice for cooling purposes. Furthermore, steel pipes can be easily tailored, joined, and adjusted to fulfill specific cooling system needs. Nevertheless, it is crucial to ensure that the steel pipes utilized are adequately coated or insulated to prevent corrosion and minimize heat dissipation.
Q:Can steel pipes be used for underground applications?
Yes, steel pipes can be used for underground applications. They are commonly used for underground piping systems in various industries such as water, oil, and gas. The durability and strength of steel make it suitable for withstanding underground conditions, providing reliable and long-lasting performance.
Q:What are the different methods of pipe joining using steel pipes?
There are multiple ways to connect steel pipes, each with its own pros and cons. 1. Threaded and coupled: This method includes threading the ends of the steel pipes and using couplings to connect them. It is a cost-effective option, but not suitable for high-pressure or gas applications. 2. Welding: Welding is a popular choice for joining steel pipes. It involves heating the pipe ends and fusing them together through welding. This method creates a strong and leak-proof joint, but it requires skilled labor and can be time-consuming. 3. Grooved: This method involves grooving the ends of the steel pipes and connecting them using mechanical couplings or fittings. It is a reliable and fast option suitable for both high and low-pressure applications, but it requires specialized tools and equipment. 4. Flanged: Flanged joints connect steel pipes using flanges, which are discs with bolt holes. The pipes are aligned and bolted together with gaskets to ensure a secure connection. This method is commonly used for large pipes and high-pressure applications, but it can be expensive and time-consuming to install. 5. Compression: Compression fittings are used to join steel pipes by compressing a ferrule or sleeve against the pipe. This method is quick, easy, and doesn't require special tools. However, it is not suitable for high-pressure or high-temperature applications. 6. Brazing: Brazing involves heating the pipe ends and melting a filler material between them to create a joint. It is a reliable method for HVAC and refrigeration systems, but it requires skilled labor and precise temperature control. When selecting the appropriate method for joining steel pipes, it is crucial to consider the specific requirements of the application, such as pressure, temperature, and material compatibility.
Q:What are the specific differences between flexible pipes and rigid pipes?
The rigid waterproof sleeve is used in the wall of the building which does not need to bear the vibration and expansion deformation of the pipe, and the wall thickness is 200mm in general;Flexible waterproof sleeve is mainly applicable to the wall of buildings with seismic requirements, pipeline vibration and expansion deformation, and strict waterproof requirements, and the wall thickness is 300mm
After more than a decade’s construction and development, we have taken a leading position in seamless steel tube industry in China. In the year 2007, it awarded Famous-brand product Certificate. Besides, we have been named as excellent supplier of Qualified Products by our customers for several times.

1. Manufacturer Overview

Location Wuxi, China
Year Established 1991
Annual Output Value 300,000Tons
Main Markets Europe; Southeast Asia; etc.
Company Certifications API 5L;API 5CT;API Q1;ISO/TS29001

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Wuxi; Shanghai
Export Percentage 41% - 50%
No.of Employees in Trade Department 3900-4000 People
Language Spoken: English; Chinese; Spanish
b)Factory Information  
Factory Size: Above 450,000 square meters
No. of Production Lines Above 10
Contract Manufacturing OEM Service Offered;Design Service Offered
Product Price Range Average

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