• Galvanized pipe/galvanized hollow section System 1
  • Galvanized pipe/galvanized hollow section System 2
  • Galvanized pipe/galvanized hollow section System 3
  • Galvanized pipe/galvanized hollow section System 4
Galvanized pipe/galvanized hollow section

Galvanized pipe/galvanized hollow section

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

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1、Structure of Galvanized hollow section DIN-A21: 

Galvanized hollow section DIN-A21 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. we can provide you best service as we can, and we sure that we can give you satisfy sprice.

 

2、‍‍Main Features of the Galvanized hollow section DIN-A21: :

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3、Galvanized hollow section DIN-A21 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 Galvanized hollow section DIN-A21:  

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.

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、Galvanized hollow section DIN-A21 Images: ‍‍

Q:How are steel pipes used in the shipbuilding industry?
Steel pipes are extensively used in the shipbuilding industry for various purposes such as carrying fluids, gases, and other materials throughout the ship. They are used for the ship's plumbing systems, including water supply, drainage, and firefighting systems. Steel pipes are also used for the ship's ventilation and air conditioning systems, as well as for fuel and oil transfer. In addition, they play a crucial role in the construction of the ship's structural framework, providing strength and durability.
Q:What are the different types of pipe coatings used for corrosion protection?
For corrosion protection, various pipe coatings are utilized to safeguard the exterior surface of pipes, ensuring their durability and integrity. Some commonly employed coatings for this purpose are as follows: 1. Fusion-Bonded Epoxy (FBE) Coatings: Renowned for their remarkable adhesion and resistance to chemicals, moisture, and abrasion, FBE coatings are extensively used. These coatings are applied by heating the pipe and subsequently spraying it with epoxy powder, which solidifies upon cooling, forming a protective layer. 2. Polyethylene (PE) Coatings: PE coatings are highly flexible and exhibit excellent resistance against impact and chemicals. Common application methods for these coatings include extrusion and wrapping, providing exceptional protection against water, soil, and other corrosive substances. 3. Polyurethane (PU) Coatings: PU coatings possess commendable resistance to chemicals, moisture, and mechanical damage. Spraying or brush coating methods are typically employed to apply these coatings, which find frequent usage in underground pipelines. 4. Coal-Tar Enamel Coatings: Coal-tar enamel coatings are suitable for safeguarding pipes exposed to highly corrosive environments like marine conditions or underground settings. Application techniques like hot or cold wrapping are commonly employed, granting exceptional resistance against water, acids, and alkalis. 5. Metallic Coatings: Metallic coatings, including zinc, aluminum, or zinc-aluminum alloys, are frequently adopted as sacrificial coatings to protect the underlying steel pipes. These coatings corrode preferentially, sacrificing themselves to shield the pipe from corrosion. 6. Asphalt Coatings: Asphalt coatings serve as robust barriers against moisture, chemicals, and soil. Typically applied using hot or cold wrapping methods, they are commonly utilized for underground pipelines. To determine the appropriate pipe coating for corrosion protection, it is crucial to consider factors such as the specific environment, temperature, and expected lifespan of the pipes.
Q:How are steel pipes used in the construction of high-rise buildings?
Steel pipes are commonly used in the construction of high-rise buildings for various purposes. They are primarily used as structural elements, forming the framework and supporting the weight of the building. Steel pipes provide strength and durability, making them suitable for withstanding the vertical and lateral loads experienced by tall buildings. Additionally, steel pipes are used for plumbing and electrical systems, as well as for heating, ventilation, and air conditioning (HVAC) installations. Their versatility, reliability, and ease of installation make steel pipes an essential component in the construction of high-rise buildings.
Q:What is the role of steel pipes in the construction of stadiums?
Steel pipes play a crucial role in the construction of stadiums as they are used for various purposes such as structural support, framing, and the creation of plumbing and drainage systems. These pipes provide the necessary strength and durability required to withstand heavy loads, ensuring the overall stability and safety of the stadium structure. Additionally, steel pipes are also used for the installation of HVAC systems, electrical wiring, and other infrastructure components, making them an essential element in the construction process.
Q:What is the difference between schedule 10 and schedule 40 steel pipes?
Schedule 10 and schedule 40 steel pipes find common usage in various industries for different purposes, differing in their wall thickness and pressure ratings. When it comes to wall thickness, schedule 10 pipes possess a slimmer wall in comparison to schedule 40 pipes. This attribute results in schedule 10 pipes having a smaller internal diameter and the ability to withstand lower pressure compared to schedule 40 pipes. While schedule 10 pipes typically have a wall thickness of 0.109 inches, schedule 40 pipes boast a wall thickness of 0.154 inches. The thinner walls of schedule 10 pipes make them ideal for applications with low pressure, such as domestic water supply, drainage systems, and general plumbing. Additionally, they are frequently employed in lightweight structures or where weight is a significant concern. On the other hand, schedule 40 pipes are specifically designed to handle higher pressure and are commonly utilized in industrial settings. These pipes are often found in applications such as oil and gas pipelines, chemical processing plants, and high-pressure fluid systems. The thicker walls of schedule 40 pipes provide them with enhanced strength and durability, enabling them to withstand higher pressure and stress. To summarize, the primary distinction between schedule 10 and schedule 40 steel pipes lies in their wall thickness and pressure ratings. Schedule 10 pipes have a thinner wall and are suitable for low-pressure applications, while schedule 40 pipes possess a thicker wall and can withstand higher pressure. It is crucial to select the appropriate schedule based on the specific requirements and pressure limitations of the intended application.
Q:Fastener type steel pipe scaffold external parts name
Fastener type steel pipe scaffold fastener malleable iron casting should be adopted, its basic form has three kinds: vertical cross bar for a connection between the rectangular fastener, fastener for rotating connecting parallel or oblique bars and rods for butt joint butt joint fastener.
Q:Water, gas, steel pipes, thick steel wire means?
Water pipes, gas pipes and other collectively known as water gas pipe, generally galvanized steel pipe, so it can be called water and gas pipe. Most of them are welded steel tubes made of low carbon steel.
Q:How are steel pipes tested for quality?
Steel pipes are tested for quality through various methods such as visual inspection, dimensional measurement, mechanical testing, and non-destructive testing. Visual inspection ensures that there are no surface defects or deformities on the pipes. Dimensional measurement involves checking the pipe's size, thickness, and length to meet the required specifications. Mechanical testing involves subjecting the pipes to stress, pressure, and temperature to assess their strength and durability. Non-destructive testing techniques like ultrasonic, radiographic, or magnetic particle testing are used to detect any internal flaws or defects without damaging the pipes. These comprehensive quality tests ensure that steel pipes meet the necessary standards before they are used in various applications.
Q:What is the lifespan of galvanized steel pipes?
The lifespan of galvanized steel pipes can vary depending on various factors such as the environment, usage, and maintenance. However, on average, galvanized steel pipes can last between 40 to 70 years.
Q:Stainless steel tube, also known as why tube?
According to the end of the pipe can be divided into light pipe and wire tubeThe tube can be divided into ordinary tube and special thread tube

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