• seamless steel pipes from CNBM China to you System 1
  • seamless steel pipes from CNBM China to you System 2
  • seamless steel pipes from CNBM China to you System 3
seamless steel pipes from CNBM China to you

seamless steel pipes from CNBM China to you

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
25 watt
Supply Capability:
8000 watt/month

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1Structure of Seamless Pipe: 

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?
    Our products are strictly in accordance with international and domestic standard. We test on every pipe before delivery. Any quality certification or testing report you want to see, please tell us.
Guaranteed: If products’ quality is not in accordance with description as we provide or the promise before you place order, we promise 100% refund.

How about the price?
    Yes, we are factory and be capable of offering you the lowest price. One of our policy is that “ to save time and be absolutely honest with our business relationship, we quote as low as possible for every client, and discount can be given according to the quantity”, if you are interested in bargain and dissatisfy our factory price, just don’t waste your time. Our quotation is professional.

Why should you choose us?
    Choice happens because of our quality and price. Additionally, we can also offer professional products inquiry, products knowledge train (for agents), fast goods delivery, outstanding 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 OK.

 

6‍‍Seamless Pipe Images ‍‍

 

Q: Can steel pipes be used in plumbing systems?
Yes, steel pipes can be used in plumbing systems. Steel pipes have been traditionally used in plumbing systems for their durability, strength, and resistance to corrosion. However, other materials like copper and plastic pipes have become more popular in recent years due to their ease of installation, lower cost, and better resistance to certain types of corrosion.
Q: What is the purpose of a steel pipe coating?
The purpose of a steel pipe coating is to provide a protective layer that prevents corrosion and extends the lifespan of the pipe. It also enhances the pipe's resistance to various environmental factors and improves its overall performance.
Q: Can steel pipes be used for brewery installations?
Yes, steel pipes can be used for brewery installations. Steel pipes are often used in breweries for various applications such as transferring fluids, connecting equipment, and creating plumbing systems. Steel pipes are known for their durability, strength, and resistance to corrosion, which makes them suitable for handling the harsh conditions and high-pressure environments typically found in brewery installations. Additionally, steel pipes can be welded together, allowing for seamless connections, ensuring a reliable and leak-free operation. However, it is important to ensure that the steel pipes used in brewery installations meet the necessary standards and regulations to ensure the safety and quality of the beer production process.
Q: What does GALV mean in a steel tube?
GALV is the abbreviation of English galvanized (Galvanized), which means galvanized steel pipe.
Q: How are steel pipes used in the manufacturing industry?
Steel pipes are used in the manufacturing industry for a wide range of applications, including the transportation of fluids and gases, structural support in buildings and infrastructure, and as a material for heat exchangers and boilers. They are also utilized in the production of various machinery and equipment, such as conveyors, cranes, and industrial piping systems. Overall, steel pipes play a crucial role in ensuring efficient and reliable operations across numerous manufacturing processes.
Q: What is the maximum length of steel pipes available?
The maximum length of steel pipes available can vary depending on the manufacturer and the specific requirements. However, standard lengths for steel pipes typically range from 18 to 24 feet.
Q: A333gr6 steel pipe and domestic material of the same?
The SA333 standard in ASME (cryogenic seamless and welded nominal steel tubes), so A333-6 is a representation of the United States, followed by many countries.
Q: Theoretical weight of 25*25*1.5 square steel tubes
Square steel tube, referred to as square tube, also known as square tube, is a square pipe of a kind of name, that is, the length of the same steel pipe. The strip is rolled by process. Generally, the strip is disassembled, leveled, crimped and welded to form a round tube. The tube is then rolled into square tubes and cut to the required length, usually 50 pieces per package.
Q: How do you calculate the pipe flow velocity for steel pipes?
To calculate the pipe flow velocity for steel pipes, you can use the Manning's formula or the Darcy-Weisbach equation. 1. Manning's formula: This formula is commonly used for open channel flow but can also be applied to partially filled pipes. It calculates the velocity based on the pipe's hydraulic radius, slope, and Manning's roughness coefficient. The formula is as follows: Velocity (V) = (1.486/n) * (R^2/3) * (S^1/2) Where: - V is the velocity - n is the Manning's roughness coefficient (which can be obtained from reference tables) - R is the hydraulic radius (cross-sectional area divided by wetted perimeter) - S is the slope of the energy grade line 2. Darcy-Weisbach equation: This equation is widely used for pipe flow calculations and is based on the principle of energy conservation. It calculates the velocity based on the pipe's diameter, roughness coefficient, and the head loss due to friction. The formula is as follows: Velocity (V) = (2 * g * hL)^0.5 Where: - V is the velocity - g is the acceleration due to gravity (approximately 9.81 m/s^2) - hL is the head loss due to friction, which can be calculated using the Darcy-Weisbach equation: hL = (f * L * V^2) / (2 * g * D) Where: - f is the Darcy friction factor (which depends on the Reynolds number and pipe roughness) - L is the length of the pipe - D is the diameter of the pipe Both formulas require some input parameters such as pipe dimensions, roughness coefficients, and slope. These parameters can be obtained from engineering references or pipe manufacturer specifications. It is important to note that these formulas provide approximate values and may require iterations or adjustments for accurate results.
Q: How are steel pipes protected against rust?
Steel pipes are protected against rust through a variety of methods. One common method is by applying a protective coating to the pipes. This can be done by using a layer of paint, epoxy, or a corrosion-resistant coating such as zinc or galvanized coatings. These coatings act as a barrier between the steel and moisture, preventing the formation of rust. Another method of protecting steel pipes against rust is by using cathodic protection. This involves the use of sacrificial anodes, typically made of zinc or magnesium, which are attached to the steel pipes. These anodes corrode instead of the steel, sacrificing themselves and preventing rust formation on the pipes. In addition to coatings and cathodic protection, steel pipes can also be protected against rust by using corrosion inhibitors. Corrosion inhibitors are chemicals that are added to the water or fluid flowing through the pipes. These chemicals form a protective film on the surface of the steel, inhibiting the corrosion process and preventing rust from forming. Regular maintenance and inspections are also crucial in protecting steel pipes against rust. Any signs of damage or wear on the protective coatings should be addressed promptly to prevent rust from developing. Additionally, ensuring that the pipes are properly cleaned and dried before applying any protective coatings can also help in enhancing their effectiveness. Overall, a combination of protective coatings, cathodic protection, corrosion inhibitors, and regular maintenance is employed to ensure that steel pipes are effectively protected against rust and corrosion, prolonging their lifespan and maintaining their structural integrity.

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