• 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 manufacturing of geothermal systems?
Steel pipes are used in the manufacturing of geothermal systems primarily for their strength, durability, and resistance to corrosion. These pipes are used to transport fluid, typically water or a water-based solution, from the geothermal source to the surface, where it can be utilized for heating or electricity generation. The high tensile strength of steel pipes allows them to withstand the high pressure and temperature conditions typically found in geothermal systems. Additionally, steel pipes are resistant to corrosion, which is important in preventing leaks and maintaining the efficiency of the system over its lifespan.
Q:Can steel pipes be used for underground transportation tunnels?
Underground transportation tunnels can indeed utilize steel pipes. For a multitude of purposes like water, gas, and sewage transportation, steel pipes are commonly employed in the construction of these tunnels. Renowned for their resilience, durability, and ability to resist corrosion, steel pipes are remarkably suitable for underground applications. With the capacity to endure the weight and pressure exerted by the nearby soil, they can also be reinforced to guarantee stability. Moreover, steel pipes offer flexibility in tunnel design as they can be manufactured in various sizes and lengths. Nonetheless, one must carefully consider factors such as soil conditions, load-bearing capacity, and potential environmental impacts before opting for steel pipes in underground transportation tunnels.
Q:What are the different types of steel pipe coatings for chemical processing plants?
There are several types of steel pipe coatings commonly used in chemical processing plants. These include fusion bonded epoxy (FBE) coatings, polyethylene (PE) coatings, polyurethane (PU) coatings, and solvent-based coatings. Each coating offers unique properties and advantages, such as corrosion resistance, chemical resistance, and abrasion resistance, to protect the steel pipes from the harsh environment and chemicals present in chemical processing plants.
Q:How are steel pipes used in plumbing systems?
Steel pipes are commonly used in plumbing systems due to their durability and strength. They are typically used for water supply lines, sewage lines, and gas lines. Steel pipes are resistant to corrosion, making them a reliable choice for long-term use. They are often used in high-pressure systems and are known for their ability to withstand extreme temperatures. Additionally, steel pipes are easily accessible and cost-effective, making them a popular choice in plumbing installations.
Q:How are steel pipes used in underground drainage systems?
Steel pipes are commonly used in underground drainage systems to transport wastewater and stormwater away from buildings and infrastructure. These pipes are durable and resistant to corrosion, making them suitable for underground applications. They are typically used for main sewer lines and stormwater drains, providing a reliable and long-lasting solution for effective drainage.
Q:There are multiple welded galvanized steel pipe outer diameter 108mm wall thickness 4mm length of 6 meters
Galvanized steel pipe wall thickness weight outer diameter 108mm 4mm 6 meters in length is about 10.26*6*1.06=65 kg.Kg/m= (outside diameter mm-, wall thickness mm) * wall thickness mm*0.02466= (108-4) *4*0.02466=10.26 kg / MBecause of galvanizing, the weight is heavier than that of ordinary welded pipe 3%~6%.
Q:What are the different types of coatings applied to steel pipes?
There are several types of coatings that can be applied to steel pipes. Some common ones include fusion-bonded epoxy (FBE) coating, polyethylene (PE) coating, polypropylene (PP) coating, and zinc coating. These coatings serve various purposes such as corrosion protection, insulation, and enhancing the pipe's durability.
Q:Is there any difference between HFW steel pipe and ERW steel pipe?
The difference between ERW (longitudinal resistance welding) and HFW (high frequency welding) is mainly due to the different principle.
Q:ASME seamless tube how to express, what is the form, I did not find on the ASME, thank God!
Seamless steel pipe, welded steel pipe, then its means of expression is: nominal diameter refers to the outer diameter (diameter * wall thickness), the unit is mm. [for example, seamless steel tubes of phi 32 * 3. It means that the nominal diameter (outside diameter) is seamless steel pipe of phi 32mm and wall thickness 3mm.
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, such as structural support, plumbing, and fire protection systems. They provide strength and durability to the building's framework, allowing it to withstand heavy loads and extreme weather conditions. Steel pipes also play a crucial role in carrying water, sewage, and other utilities throughout the building, ensuring efficient functionality. Additionally, they are utilized in the installation of fire sprinkler systems, enhancing the safety measures of the high-rise structure.

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