• Good quality 3/4 Inch Seamless Steel Pipe System 1
  • Good quality 3/4 Inch Seamless Steel Pipe System 2
Good quality 3/4 Inch Seamless Steel Pipe

Good quality 3/4 Inch Seamless Steel Pipe

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
30 m.t.
Supply Capability:
5000 m.t./month

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1Structure of Seamless Pipe: 

Seamless pipe is made with steel bar by perforating machine. It holds a hollow section and there is no seam around. Resulting from  the facture process, seamless pipes are of better pressure resistance than other molds, and was usually more easily available and safe than other pipes. We are factory and definitely will satisfy your demand.

 

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 test on every pipe before delivery. You can get any quality certification or testing report from us. Our products are strictly in accordance with international standard. If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.

How about the price?

    Yes, we are factory and offering you the lowest price in the market. Speed and honesty are our target. No hesitate. 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 choose us?
    Think of our quality and price. They are charming. SGS test / Customer inspection / Third party inspection is OK. We are factory. So we can make any pipe you need in accordance to your requirement. That's attaracting, right?

 

6‍‍Seamless Pipe Images ‍‍

 

 

 

Q:What is the difference between cast iron and steel pipes?
Cast iron pipes and steel pipes are commonly used in plumbing and construction, but they have distinct differences. Let's explore these disparities. 1. Composition: Cast iron pipes consist mainly of an iron alloy, with small amounts of carbon and other elements. Conversely, steel pipes are primarily composed of iron, but they also contain varying amounts of carbon and other alloying elements like manganese, chromium, and nickel. 2. Strength: Steel pipes generally surpass cast iron pipes in strength due to their higher carbon content and alloying elements. This makes steel pipes more suitable for high-pressure applications or areas with heavy loads. 3. Flexibility: Compared to cast iron pipes, steel pipes offer more flexibility, making installation and adjustment easier. Cast iron pipes, being brittle, are less flexible and more prone to cracking or breaking under excessive stress or impact. 4. Corrosion resistance: Steel pipes are usually more prone to corrosion than cast iron pipes. However, this can be mitigated with various protective coatings or treatments applied to the steel pipes. Cast iron pipes, on the other hand, possess inherent corrosion resistance due to the formation of a protective layer of rust on their surface. 5. Noise insulation: Cast iron pipes excel in noise insulation due to their dense and heavy composition. This makes them ideal for reducing noise in residential plumbing systems. Steel pipes, being lighter and less dense, do not offer the same level of noise insulation. 6. Longevity: When properly maintained, cast iron pipes have a lifespan of over 100 years. Steel pipes, while still durable, may have a shorter lifespan depending on factors like the quality of the steel used, environmental conditions, and maintenance practices. In conclusion, the primary differences between cast iron and steel pipes lie in their composition, strength, flexibility, corrosion resistance, noise insulation, and longevity. The choice between the two depends on specific requirements, such as desired strength, durability, and noise reduction properties.
Q:Heating system DN40 and DN32 welded steel pipe how to connect?
Welding: AC arc welding machine welding. Mode 1: apply to the medium of non demanding piping, DN40 steel pipe necking and DN32 steel pipe butt welding, or directly DN32 steel pipe into the DN40 internal welding. 2: the pipeline requirements apply to the inner wall of smooth transition, reducing short circuit welding for DN40x32 suppression of this mechanism are used for connection pipe seamless steel pipe high pressure pipeline connection, no special requirements, not commonly used welded steel pipe. Connection of mechanism fittings is not only costly, but not necessary unless special requirements are required!
Q:What are the different joining methods for steel pipes?
There are several joining methods for steel pipes, including welding, threaded connections, flanged connections, and mechanical couplings. Welding involves melting the ends of the pipes and fusing them together using heat. Threaded connections involve screwing the pipes together using threaded ends. Flanged connections use flanges that are bolted together to connect the pipes. Mechanical couplings use a variety of methods such as compression fittings or grooved couplings to connect the pipes without welding or threading.
Q:What is the difference between steel pipe and polyethylene pipe?
Steel pipe and polyethylene pipe are two different types of materials used for plumbing and construction purposes. The main difference between these two pipes lies in their composition and characteristics. Steel pipe is made from a combination of iron and carbon, which gives it its strength and durability. It is commonly used in applications where high pressure and heavy loads are expected, such as in industrial settings or for underground gas and oil pipelines. Steel pipe is known for its resistance to corrosion and its ability to withstand extreme temperatures. On the other hand, polyethylene pipe is a type of plastic pipe made from high-density polyethylene (HDPE) or low-density polyethylene (LDPE). It is lightweight, flexible, and easy to install, making it a popular choice for residential plumbing and irrigation systems. Polyethylene pipe is resistant to chemicals, UV rays, and abrasive materials, making it suitable for both above-ground and underground installations. Another significant difference between steel pipe and polyethylene pipe is their cost. Steel pipe generally tends to be more expensive due to the raw materials and manufacturing processes involved. Polyethylene pipe, on the other hand, is relatively affordable and cost-effective, especially for smaller-scale projects. In terms of maintenance, steel pipe requires periodic inspections and maintenance to prevent corrosion and ensure its longevity. Polyethylene pipe, on the other hand, is virtually maintenance-free due to its resistance to corrosion and chemical degradation. In summary, the main difference between steel pipe and polyethylene pipe lies in their composition, strength, durability, cost, and maintenance requirements. The choice between these two pipes depends on the specific needs of the project, taking into consideration factors such as pressure, load, budget, and environmental conditions.
Q:How are steel pipes manufactured?
Steel pipes are manufactured through a process called pipe manufacturing or pipe making, which involves various steps such as forming, welding, and finishing. The process starts with the procurement of raw materials, which are typically steel coils or sheets. These coils are then fed through a series of rollers to shape them into a cylindrical form. The edges of the coils are then welded together to create a continuous pipe. After welding, the pipes undergo various finishing processes such as sizing, straightening, and cutting to achieve the desired dimensions and specifications. Finally, the pipes are tested for quality assurance and may undergo additional treatments like galvanization or coating before being ready for use in different industries and applications.
Q:What are the different types of couplings used with steel pipes?
There are several types of couplings used with steel pipes, including threaded couplings, slip-on couplings, compression couplings, and grooved couplings.
Q:What are the different types of joints used with steel pipes?
Steel pipes commonly use several types of joints, depending on the specific application and requirements. Some of the most frequently used types are as follows: 1. Butt Joint: This type of joint is the most basic, involving the alignment and welding of two pipes at their ends. It creates a strong and continuous connection, but reinforcement may be necessary depending on the pipe's size and pressure rating. 2. Socket Weld Joint: Smaller diameter pipes often utilize this joint, where one pipe is inserted into the socket of another and then welded together. It provides good strength and resistance against leaks. 3. Threaded Joint: A threaded joint involves screwing together two pipes with threaded ends. It is commonly used in low-pressure applications and necessitates the use of pipe threads and sealants for a tight and leak-free connection. 4. Flanged Joint: In high-pressure applications, a flanged joint connects two pipes by bolting together flanges at their ends. This type of joint allows for easy disconnection and maintenance. 5. Grooved Joint: A grooved coupling is placed around the ends of two pipes in a grooved joint, which is then secured with bolts. This joint is commonly used in fire protection systems due to its quick installation and easy maintenance. 6. Welded Joint: A welded joint involves fusing two pipes together using various welding techniques like GTAW or GMAW. It provides a strong and permanent connection but requires skilled labor and additional equipment. Each type of joint has its own advantages and limitations, and the selection depends on factors such as pipe size, pressure rating, application, and installation requirements. Choosing the appropriate joint is crucial to ensure the integrity and reliability of the steel pipe system.
Q:How are steel pipes used in the mining industry?
Steel pipes are commonly used in the mining industry for various purposes such as transporting minerals, water, and gases underground, as well as for constructing mine shafts, tunnels, and mine infrastructure due to their durability, strength, and resistance to corrosion.
Q:What are the different types of steel pipe fittings for industrial applications?
There are several different types of steel pipe fittings commonly used in industrial applications. These include elbows, tees, couplings, unions, reducers, flanges, and caps. Each of these fittings serves a specific purpose in connecting and directing the flow of fluids or gases within a piping system.
Q:What are the typical lengths of steel pipes?
The typical lengths of steel pipes can vary depending on their purpose and application. However, common lengths range from 20 feet (6 meters) to 40 feet (12 meters) in commercial and industrial settings.

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