• Small Diameter Seamless Stainless Steel Tube System 1
  • Small Diameter Seamless Stainless Steel Tube System 2
Small Diameter Seamless Stainless Steel Tube

Small Diameter Seamless Stainless Steel Tube

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

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1Structure of Seamless Pipe: 

We are company that have many years experience and professional manager team and engineer team and sales team, sure we will provide you high quality of pipe and professioanl service.

Seamless pipe possesses a hollow section and without seam around the strip steel. It is made with solid bar or steel ingot by perforating machine. As the facture process does not include any welding, seamless pipes are considered to be stronger and more durable. Generally speaking, seamless pipe has better pressure resistance and security than other classifications, and was usually more easily available than welded pipe.

 

2‍‍Main Features of the Seamless Pipe:

High working accuracy

High strength

Small inertia resistance

Strong therming dissipine ability

Good appearance

Reasonble price

 

3Seamless Pipe 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) Executive 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:  

How is the quality of your products?
     We have many years business experience in this area, and we have professional engineer and manager team and sure we can provide you high quality production and professional service.

How 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.

Why should you chose us?
    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 Images ‍‍

 

 

 

Q: Can stainless steel pipes be used in power plants?
Yes, stainless steel pipes can be used in power plants. Stainless steel is highly resistant to corrosion, making it suitable for various applications in power plants where there may be exposure to high temperatures, pressures, and corrosive environments. Stainless steel pipes are commonly used for transporting fluids such as water, steam, and chemicals in power plants. They are also used in various components such as heat exchangers, boilers, condensers, and turbines. The durability, strength, and resistance to corrosion of stainless steel make it a reliable choice for power plant applications.
Q: Can stainless steel pipes be used for underground drainage?
Certainly! Stainless steel pipes are capable of being used for underground drainage. Stainless steel, a material highly resistant to corrosion and extremely durable, is appropriate for a variety of applications, including underground drainage systems. Its exceptional resistance to rust, corrosion, and chemical damage guarantees a lengthy lifespan and low maintenance requirements. Moreover, stainless steel pipes possess great strength and can endure high-pressure conditions, making them ideal for underground drainage where external load or stress may be encountered. In addition, stainless steel pipes are renowned for their smooth inner surface, which aids in preventing blockages and facilitating the efficient flow of water and waste. All in all, stainless steel pipes are a dependable and enduring option for underground drainage systems.
Q: Can stainless steel pipes be mirror polished?
Yes, stainless steel pipes can be mirror polished. Mirror polishing is a process that involves grinding down the surface of the stainless steel pipe until it is smooth and then using a series of polishing compounds to achieve a high gloss finish. This process can be done by hand or with the use of specialized machinery. The mirror polished finish not only enhances the aesthetic appeal of the stainless steel pipe but also provides added protection against corrosion and staining. However, it is important to note that the mirror polished finish may require regular maintenance to maintain its shine over time.
Q: Are stainless steel pipes resistant to erosion-corrosion?
Yes, stainless steel pipes are highly resistant to erosion-corrosion due to their inherent properties such as high chromium content, which forms a protective oxide layer on the surface, preventing corrosion and erosion from occurring.
Q: How do you prevent backflow in stainless steel pipes?
There are several essential measures that can be taken to prevent backflow in stainless steel pipes. Firstly, the installation of a backflow preventer is crucial. This mechanical device ensures that water flows in only one direction, effectively preventing any backflow. Various types of backflow preventers, such as check valves, double check valves, and reduced pressure zone devices, are available. The selection of the appropriate one depends on the specific system requirements and local codes and regulations. Regular maintenance and inspection of the backflow preventer are also important. It is necessary to ensure that the device is functioning properly and promptly address any signs of wear or damage. Regular maintenance may involve cleaning and replacing worn-out parts to maintain optimal performance. Maintaining proper pressure in the stainless steel pipes is another preventive measure. High pressure can lead to water flowing in the opposite direction, causing backflow. By installing pressure regulators or pressure-reducing valves, the water pressure can be controlled and kept within the recommended range. Incorporating air gaps into the system provides an additional layer of protection against backflow. Air gaps create a physical separation between the water source and the point of use, eliminating any direct connection that could allow backflow to occur. Proper system design is also crucial in preventing backflow. This includes ensuring correct sizing of the stainless steel pipes, appropriate slope, and proper connections. Additionally, locating the backflow preventer in an easily accessible area facilitates regular maintenance and inspection. By implementing these preventive measures, the risk of backflow in stainless steel pipes can be significantly reduced. This promotes the safe and efficient flow of water in the system.
Q: How do you calculate the pressure drop in stainless steel pipes?
To calculate the pressure drop in stainless steel pipes, you can use various methods such as the Darcy-Weisbach equation, the Hazen-Williams equation, or the Manning formula. These formulas consider factors like pipe diameter, length, flow rate, fluid properties, and pipe roughness to determine the pressure loss. Additionally, online calculators and software programs are available to simplify the calculations.
Q: Are stainless steel pipes suitable for hot water applications?
Yes, stainless steel pipes are highly suitable for hot water applications. Stainless steel has excellent corrosion resistance, high strength, and can withstand high temperatures, making it a reliable choice for carrying hot water. It is also hygienic and durable, making it a preferred material for applications where cleanliness and longevity are essential, such as in the plumbing industry.
Q: What is the maximum temperature for stainless steel pipes?
The maximum temperature for stainless steel pipes depends on the specific grade of stainless steel being used. Generally, austenitic stainless steels, such as grades 304 and 316, can withstand high temperatures up to 1600-1800°F (870-980°C). However, it is important to consider factors such as the duration of exposure, the presence of corrosive environments, and the specific application requirements. Other grades of stainless steel, such as ferritic or martensitic stainless steels, may have lower maximum temperature limits. It is advisable to consult the manufacturer's specifications and engineering guidelines to determine the appropriate maximum temperature for a particular stainless steel pipe.
Q: What is the difference between 440C and 440F stainless steel pipes?
The 440 series encompasses two types of stainless steel, namely 440C and 440F. These variants differ slightly in their composition and properties. 440C stainless steel, a high-carbon martensitic type, boasts chromium content that bolsters its corrosion resistance and hardness. It is renowned for its exceptional wear resistance, commendable strength, and ability to maintain sharpness. Its elevated carbon content ensures excellent hardness, albeit at the expense of increased difficulty in machining when compared to stainless steels with lower carbon levels. Consequently, 440C finds common application in scenarios necessitating high strength, corrosion resistance, and wear resistance, such as cutting tools, bearings, and surgical instruments. Contrarily, 440F stainless steel represents a free-machining version of 440C. Like its counterpart, it is a high-carbon martensitic stainless steel; however, it incorporates sulfur to enhance its machinability. The sulfur acts as a lubricant during the machining process, facilitating easier and faster cutting. Nevertheless, the addition of sulfur marginally diminishes 440F's corrosion resistance and toughness in comparison to 440C. Consequently, 440F finds utility in applications demanding extensive machining, such as automotive components, fasteners, and valve parts. To sum up, the primary distinction between 440C and 440F stainless steel lies in their machinability and sulfur content. While 440C offers superior corrosion resistance and hardness, it may prove more challenging to machine. On the other hand, 440F is more manageable to machine but exhibits slightly reduced corrosion resistance and toughness. The selection between the two depends on the specific requirements of the application, with 440C being preferred when prioritizing corrosion resistance and wear resistance, and 440F being suitable for scenarios necessitating extensive machining.
Q: Are stainless steel pipes resistant to abrasion?
Yes, stainless steel pipes are highly resistant to abrasion. The inherent properties of stainless steel, such as its hardness, toughness, and corrosion resistance, make it highly durable and less prone to wear and tear caused by abrasion compared to other materials.

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