• Large Diameter Thick Wall Steel Pipe API, ASTM, BS, DIN, GB, JIS System 1
  • Large Diameter Thick Wall Steel Pipe API, ASTM, BS, DIN, GB, JIS System 2
  • Large Diameter Thick Wall Steel Pipe API, ASTM, BS, DIN, GB, JIS System 3
Large Diameter Thick Wall Steel Pipe API, ASTM, BS, DIN, GB, JIS

Large Diameter Thick Wall Steel Pipe API, ASTM, BS, DIN, GB, JIS

Ref Price:
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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
20 m.t.
Supply Capability:
15000 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:How do you repair damaged steel pipes?
To repair damaged steel pipes, the first step is to assess the extent of the damage. If it's a small crack or hole, it can be fixed using a steel-filled epoxy or a pipe repair clamp. However, for more significant damage, such as extensive corrosion or a large rupture, cutting out the damaged section and replacing it with a new pipe is usually necessary. In some cases, professional welding or soldering may be required to ensure a secure and leak-proof repair.
Q:How are steel pipes used in mining?
Steel pipes are widely used in mining operations for various purposes. One of the primary uses of steel pipes in mining is for transporting materials such as water, slurry, and other liquids. These pipes are durable and can withstand the harsh conditions often found in mining environments, making them suitable for the transportation of materials over long distances. Steel pipes are also used for ventilation systems in mines. Proper ventilation is crucial in mining to provide fresh air to workers and remove harmful gases and dust. Steel pipes are used to construct ventilation shafts and ducts that facilitate the flow of air throughout the mine, ensuring a safe working environment for the miners. Additionally, steel pipes are used in the construction of underground tunnels and mine shafts. These pipes provide structural support and reinforcement, helping to prevent collapses and maintain the stability of the mine. Steel pipes are known for their strength and durability, making them an ideal choice for these critical applications in mining. Another application of steel pipes in mining is for the extraction of resources. In some cases, steel pipes are used to create boreholes or wells to access underground deposits of minerals or water. These pipes are inserted into the ground, and various techniques such as drilling or hydraulic fracturing are used to extract the desired resources. Overall, steel pipes play a vital role in the mining industry, serving various purposes such as material transportation, ventilation, structural support, and resource extraction. Their strength, durability, and ability to withstand harsh conditions make them indispensable in mining operations.
Q:What are the different methods of inspecting steel pipes?
There are several methods for inspecting steel pipes, including visual inspection, ultrasonic testing, magnetic particle inspection, radiographic testing, and eddy current testing.
Q:What are the quality control measures for steel pipe production?
Quality control measures for steel pipe production typically involve several steps to ensure the final product meets the required specifications and industry standards. These measures may include inspection of raw materials, such as the steel coils or plates, to ensure they meet the required chemical composition and mechanical properties. During manufacturing, various processes like forming, welding, and heat treatment are closely monitored to maintain dimensional accuracy and integrity. Non-destructive testing methods, such as ultrasonic or radiographic inspection, are often employed to detect any defects or anomalies in the pipes. Additionally, visual inspection, surface treatment assessment, and mechanical testing are conducted to assess the overall quality before the pipes are released for distribution.
Q:How are steel pipes installed underground?
Steel pipes are installed underground through a process called trenching, where a trench is dug to the desired depth and length. The steel pipes are then placed in the trench and secured using various techniques such as welding or threading. The trench is then backfilled, ensuring proper compaction around the pipes to provide stability and prevent movement.
Q:What is the difference between the stainless steel pipe welded pipe and seamless pipe?
Welding performance: chemical composition of seamed pipe and seamless pipe are different. The production of seamless steel components only meets the basic requirements of astm. The production of seamed tube steel containing suitable for chemical composition of welding. For example, the mixing of silicon, sulfur, manganese, oxygen, and a certain proportion of elements such as the triangle ferrite can produce a welding flux which is easy to transfer heat during welding, so as to make the whole weld be welded well. The lack of steel pipe above the chemical components, such as seamless tube, can produce all kinds of unstable factors in the process of welding, welding and welding penetration is not easy.
Q:How do steel pipes handle extreme temperatures?
Steel pipes are highly durable and can handle extreme temperatures due to their inherent strength and heat resistance. They have a high melting point, allowing them to withstand both very high and very low temperatures without compromising their structural integrity. Additionally, steel pipes have excellent thermal conductivity, which enables them to efficiently transfer heat and prevent damage caused by extreme temperature fluctuations.
Q:How are steel pipes used in irrigation systems?
Steel pipes are commonly used in irrigation systems as they offer durability, strength, and corrosion resistance. These pipes are used to transport water from a water source to the fields or crops being irrigated. Their smooth interior surface allows for efficient water flow, and their high-pressure rating ensures that water reaches the desired areas with adequate force. Additionally, steel pipes are often used in underground irrigation systems due to their ability to withstand external pressures and protect the water supply from potential damage.
Q:The plastic pipe and steel pipe difference
Plastic pipe and plastic inner coating, and coated inside and outside. (of course, some are epoxy coated, and some are PE).The plastic tube is one kind of steel pipe, steel plastic pipe has many types, including plastic, plastic, and plastic coated, and epoxy, which are known are steel tubes.
Q:What are the different types of steel pipe bends for pipeline routing?
There are several different types of steel pipe bends commonly used for pipeline routing. These include 90-degree bends, 45-degree bends, and custom bends with specific angles as per the pipeline design requirements. Each type of bend serves a specific purpose in redirecting the flow of fluids or gases through the pipeline while maintaining structural integrity.

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