• Welded pipe/building materials/ hollow section System 1
  • Welded pipe/building materials/ hollow section System 2
  • Welded pipe/building materials/ hollow section System 3
  • Welded pipe/building materials/ hollow section System 4
Welded pipe/building materials/ hollow section

Welded pipe/building materials/ hollow section

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
25 m.t.
Supply Capability:
8000 m.t./month

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1、Structure of Welded pipe API D-IN103: 

Welded 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 Welded pipe was regarded as withstanding pressure better than other types, and was often more easily available than welded pipe.

 

2、‍‍Main Features of the Welded pipe API D-IN103:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3、Welded pipe API D-IN103 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. 

 

4、Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT

 

5、FAQ of Welded pipe API D-IN103:  

①How 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.We have professional engineer and sales manger team and sure we will provide you best services.

②How 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.

③Why 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.

 

6、Welded pipe API D-IN103 Images: ‍‍

Q:What are the advantages of using steel pipes in construction?
There are several advantages of using steel pipes in construction. Firstly, steel pipes are incredibly strong and durable, providing excellent structural integrity and long-term reliability. They can withstand high pressure and heavy loads, making them suitable for various applications such as water and gas transportation, oil pipelines, and building frameworks. Secondly, steel pipes have a high resistance to corrosion, which ensures longevity and reduces maintenance costs. Additionally, steel pipes are versatile and can be easily customized to meet specific project requirements, as they come in various sizes, shapes, and thicknesses. Lastly, steel pipes are environmentally friendly, as they are recyclable, reducing the overall carbon footprint of construction projects.
Q:Can steel pipes be used for stadium construction?
Certainly, stadium construction can utilize steel pipes. Steel pipes possess several benefits that render them suitable for this purpose. Primarily, steel pipes exhibit immense strength and durability, enabling them to withstand heavy loads and provide structural stability to large structures such as stadiums. Their high tensile strength ensures they can resist bending or breaking under pressure. Moreover, steel pipes possess resistance to corrosion, a crucial characteristic for outdoor structures like stadiums that are exposed to diverse weather conditions. This resistance to rust and other forms of degradation guarantees the stadium's longevity. Additionally, steel pipes are highly versatile and can be easily fabricated into various shapes and sizes, allowing for customized designs and efficient installation. Furthermore, in terms of cost-effectiveness, steel pipes prove advantageous in stadium construction. They can be produced in large quantities with ease, making them readily available and affordable. The simplicity of transportation and installation also contributes to their cost-effectiveness. Another advantage of employing steel pipes in stadium construction lies in their sustainability. Steel is a recyclable material, and utilizing steel pipes promotes environmental responsibility. The recyclability of steel reduces the demand for new materials and minimizes waste. To summarize, due to their strength, durability, resistance to corrosion, versatility, cost-effectiveness, and sustainability, steel pipes can indeed be utilized for stadium construction.
Q:What are the different types of gaskets used with steel pipes?
There are several types of gaskets commonly used with steel pipes, including ring type joint (RTJ) gaskets, spiral wound gaskets, and flat gaskets. RTJ gaskets are designed to create a tight seal by compressing between two flanges, while spiral wound gaskets consist of a metal winding and filler material for enhanced sealing properties. Flat gaskets are typically made from rubber or non-metallic materials and are used for lower pressure applications.
Q:What is the role of steel pipes in the telecommunications industry?
Steel pipes play a crucial role in the telecommunications industry as they are used for the installation of underground and overhead telecommunication cables. These pipes provide protection and support to the cables, ensuring their safety and longevity. Additionally, steel pipes are also used in the construction of communication towers and infrastructure, making them an essential component in establishing and maintaining reliable telecommunications networks.
Q:How are steel pipes used in the food and beverage industry?
Steel pipes are commonly used in the food and beverage industry for various applications such as transporting liquids and gases, including water, beverages, and food ingredients. They are chosen for their durability, resistance to corrosion, and ability to maintain hygiene standards. Steel pipes are used to facilitate the flow of materials throughout the production process, ensuring safe and efficient operations in the food and beverage industry.
Q:How do steel pipes handle pressure surges?
Steel pipes possess exceptional strength and durability, enabling them to effectively manage pressure surges. When pressure surges arise within a pipeline system, steel pipes exhibit the capability to withstand and absorb heightened forces without experiencing breakage or rupture. The commendable tensile strength of steel grants resistance against the pressure imposed upon the pipes, preventing deformation or collapse during sudden surges. Furthermore, steel pipes possess a commendable burst pressure rating, signifying their capacity to endure substantial pressure increases without succumbing to failure. Additionally, steel pipes are frequently engineered with thicker walls, bolstering their capacity to handle pressure surges. The increased wall thickness assists in distributing the augmented force evenly, thereby minimizing the possibility of localized stress and potential points of failure. Moreover, steel pipes are frequently employed in conjunction with fittings and valves specially designed to tackle pressure surges. These fittings and valves are composed of similar materials, ensuring compatibility and preserving the integrity of the pipeline system. All in all, steel pipes are excellently suited to manage pressure surges due to their strength, durability, and ability to endure high pressures. Their resistance to deformation, notable burst pressure rating, and compatibility with specialized fittings and valves render them a dependable choice for applications where pressure surges may arise.
Q:What is the dimensional stability of steel pipes?
The ability of steel pipes to retain their shape and dimensions in different conditions and external forces is referred to as dimensional stability. Steel pipes are well-known for their exceptional dimensional stability due to the inherent properties of the material. Steel, being a strong and rigid material, can maintain its shape even when subjected to high pressure or temperature fluctuations. This characteristic makes steel pipes highly suitable for applications that demand stability and resistance to deformation, such as plumbing, oil and gas pipelines, and structural supports. In addition to its inherent strength, the dimensional stability of steel pipes is also a result of their manufacturing processes. These pipes are typically produced using methods like seamless or welded construction, ensuring uniformity and consistent dimensions throughout the pipe's length. This precise manufacturing contributes to the dimensional stability of steel pipes. Furthermore, steel pipes are often coated with various protective coatings to increase their resistance to environmental factors. These coatings, such as galvanization or epoxy coatings, not only provide corrosion protection but also enhance the dimensional stability of the pipes by adding an extra layer of strength and durability. In conclusion, the widespread use of steel pipes in different industries is largely attributed to their dimensional stability. Their ability to maintain their shape and dimensions, even in challenging conditions, guarantees reliable and long-lasting performance in various applications.
Q:How do you calculate the pipe flow rate coefficient for steel pipes?
To calculate the pipe flow rate coefficient for steel pipes, you can use the Darcy-Weisbach equation, which takes into account the pipe diameter, length, roughness factor, and the fluid properties such as viscosity and density. By rearranging the equation and solving for the flow rate coefficient, you can determine the value using empirical correlations or by conducting experimental tests under controlled conditions.
Q:How are steel pipes used in the automotive exhaust system?
Steel pipes are used in the automotive exhaust system to transport and direct the flow of exhaust gases from the engine to the rear of the vehicle. These pipes are durable, heat-resistant, and corrosion-resistant, making them suitable for withstanding the high temperatures and harsh conditions of the exhaust system. Additionally, they help reduce noise and emissions by providing a pathway for the gases to exit the vehicle efficiently.
Q:How are steel pipes measured and specified?
Steel pipes are measured and specified based on their diameter (nominal pipe size or NPS) and wall thickness (schedule or SCH). The NPS represents the internal diameter of the pipe, while the SCH indicates the thickness of the pipe walls. These measurements are crucial for ensuring proper compatibility and functionality in various applications, such as plumbing, construction, and industrial processes.

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