• Alloy structural steel seamless steel pipes System 1
  • Alloy structural steel seamless steel pipes System 2
Alloy structural steel seamless steel pipes

Alloy structural steel seamless steel pipes

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
60 m.t.
Supply Capability:
16000 m.t./month

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1Structure of Alloy structural steel seamless steel pipe 

Seamless pipe is formed by drawing a solid billet over a piercing rod to create the hollow shell. As the manufacturing process does not include any welding, seamless pipes are perceived to be stronger and more reliable. Historically seamless pipe was regarded as withstanding pressure better than other types, and was often more easily available than welded pipe.

 

2‍‍Main Features of Alloy structural steel seamless steel pipe:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3Alloy structural steel seamless steel 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) Excutive 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 Alloy structural steel seamless steel pipe:  

How is the quality of your products?
    Our products are manufactured strictly according to national and internaional standard, and we take a test 
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.

Why should you chose us?
    Chose happens because of quality, then price, 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.

 

6‍‍Alloy structural steel seamless steel pipe Images ‍‍

Alloy structural steel seamless steel pipes




Q:How are steel pipes used in the automotive exhaust systems?
Steel pipes are commonly used in automotive exhaust systems because steel is a durable and heat-resistant material. Steel pipes are used to transport the exhaust gases from the engine to the muffler and tailpipe, ensuring that the gases are safely and efficiently expelled from the vehicle. These pipes are designed to withstand high temperatures, corrosion, and vibration, making them an essential component in the exhaust system.
Q:What are the factors to consider when selecting steel pipes?
Some factors to consider when selecting steel pipes include the intended application and environment, the required strength and durability, the size and thickness of the pipes, the corrosion resistance, the cost, and the availability of different types of steel pipes.
Q:What is the difference between steel pipes and cast iron soil pipes?
Steel pipes and cast iron soil pipes are both used for plumbing and drainage systems, but they differ mainly in their material composition and durability. Steel pipes are typically made from an alloy of iron and carbon, which provides them with high strength and resistance to corrosion. On the other hand, cast iron soil pipes are made solely from iron, making them more susceptible to rust and corrosion over time. Additionally, steel pipes are generally lighter, easier to handle, and more flexible than cast iron soil pipes. However, cast iron soil pipes are known for their superior soundproofing properties, making them a preferred choice in buildings where noise reduction is crucial.
Q:What is the difference between steel pipe and HDPE pipe?
Steel pipe and HDPE pipe are both types of pipes used for various purposes, but they differ in their composition and characteristics. Steel pipe is made of a combination of iron and carbon, making it strong and durable. It is commonly used for transporting fluids and gases in industries such as oil and gas, construction, and water supply. On the other hand, HDPE (high-density polyethylene) pipe is made of a plastic polymer, which offers excellent flexibility and corrosion resistance. HDPE pipe is commonly used for applications such as drainage, irrigation, and sewage systems. Overall, the main difference between steel pipe and HDPE pipe lies in their material composition and the specific applications they are best suited for.
Q:What are the different grades of steel used in manufacturing pipes?
The different grades of steel used in manufacturing pipes are typically categorized based on their chemical composition and mechanical properties. Some common grades include carbon steel, stainless steel, alloy steel, and duplex steel. Each grade has its own unique characteristics and is chosen based on the specific requirements of the application, such as corrosion resistance, strength, and temperature resistance.
Q:Seamless steel tube DN15 specification phi 18*3 what do you mean?
Seamless steel pipe having a hollow cross section, used as a conduit for conveying fluids, such as pipelines for transporting petroleum, natural gas, gas, water, and certain solid materials. Compared with solid steel such as round steel, steel tube is lighter in strength and equal in resistance to bending and torsion. It is an economical cross section steel and is widely used in the manufacture of structural and mechanical parts.
Q:How are steel pipes sized and classified?
The primary criteria for sizing and categorizing steel pipes are their outer diameter (OD) and wall thickness. This standardization ensures compatibility and ease of use across different applications. The common approach to sizing steel pipes is through nominal pipe size (NPS), a North American standard that refers to a pipe's OD. NPS sizes span from 1/8 inch to 36 inches, with each size corresponding to a specific OD. For instance, a 1/2-inch NPS pipe has an OD of 0.84 inches, while a 12-inch NPS pipe has an OD of 12.75 inches. It's important to note that the pipe's OD may not precisely match its actual measurement due to historical dimensions. Moreover, steel pipes are categorized into various schedules, which indicate the wall thickness. The most common schedules are SCH 5, SCH 10, SCH 40, SCH 80, and SCH 160, with higher numbers representing thicker walls. These schedules are standardized and aid in selecting the appropriate pipe for specific applications. Additionally, steel pipes can be further classified based on their end connections. The typical types include threaded, plain-end, and socket-weld connections. Threaded pipes possess screw threads on both ends, facilitating easy assembly and disassembly. Plain-end pipes lack threads and are typically joined using welding techniques. Socket-weld pipes have a socket-like end that enables welding with a corresponding fitting. In conclusion, steel pipes undergo sizing and classification based on their outer diameter, wall thickness, and end connections. The nominal pipe size (NPS) denotes the outer diameter, while the schedule number represents the wall thickness. Understanding the sizing and classification of steel pipes is crucial when selecting the appropriate pipe for specific applications in industries like construction, oil and gas, plumbing, and manufacturing.
Q:Are steel pipes suitable for underground installations in areas with high moisture content?
Steel pipes are generally suitable for underground installations in areas with high moisture content. However, there are certain factors to consider when using steel pipes in such conditions. Corrosion is a major concern when steel pipes are exposed to moisture for extended periods. To mitigate this risk, it is important to use steel pipes that are specifically designed for underground installations and are coated with protective materials such as epoxy or polyethylene. These coatings act as a barrier between the steel and the surrounding moisture, preventing corrosion and extending the lifespan of the pipes. Additionally, proper installation techniques, including adequate pipe bedding and backfilling, should be followed to ensure the pipes are properly supported and protected from external forces. Regular inspection and maintenance are also recommended to identify any signs of corrosion or damage and address them promptly. Overall, with the right precautions and maintenance, steel pipes can be a suitable choice for underground installations in areas with high moisture content.
Q:What is the difference between steel pipes and polyethylene pipes?
Steel pipes and polyethylene pipes are two types of piping materials that have different characteristics and uses. Steel pipes are made of a durable and strong material, making them suitable for high-pressure applications and transporting fluids or gases. They have a high resistance to heat, corrosion, and impacts, making them ideal for industrial and heavy-duty applications. Steel pipes are commonly used in industries such as oil and gas, construction, and infrastructure projects. Polyethylene pipes, on the other hand, are made of a flexible and lightweight plastic material known as polyethylene. They are commonly used for underground water supply systems, irrigation, and drainage systems. Polyethylene pipes have excellent resistance to chemicals, making them suitable for transporting water and other fluids. They are also more affordable and easier to install compared to steel pipes. In summary, the main difference between steel pipes and polyethylene pipes lies in their material composition, strength, and applications. Steel pipes are stronger and suitable for high-pressure applications, while polyethylene pipes are flexible, lightweight, and commonly used for water supply and drainage systems.
Q:How do steel pipes compare to other materials in terms of cost?
Steel pipes are generally more cost-effective than many other materials used for pipes, thanks to their durability, strength, and availability. While initial costs may vary depending on factors like size and grade, steel pipes offer a longer lifespan and require less maintenance compared to other materials, making them a cost-efficient choice in the long run.

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