• High Quality Welded Steel Tubes And Pipes System 1
  • High Quality Welded Steel Tubes And Pipes System 2
  • High Quality Welded Steel Tubes And Pipes System 3
High Quality Welded Steel Tubes And Pipes

High Quality Welded Steel Tubes And Pipes

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
25 m.t.
Supply Capability:
10000 m.t./month

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1Structure of High Quality Welded Steel Tubes And Pipes: 

Welded Steel Pipe is  to be used for conveying gas, water, and petroleum foroil and natural gas industries. And used for structural steel pies purpose.

 

2‍‍Main Features of the High Quality Welded Steel Tubes And Pipes:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3High Quality Welded Steel Tubes And Pipes 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 High Quality Welded Steel Tubes And Pipes:  

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.

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?
    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.

 

6High Quality Welded Steel Tubes And Pipes Images ‍‍

 

High Quality Welded Steel Tubes And Pipes

 

Q:What steel pipes are buried for outdoor heating pipes? Seamless or welded tube? Are there any rules for specific countries? Can use the seamed tube?
Where outdoor heating pipes are buried, what steel pipe shall be referenced by the 11.1.2 code for installation of outdoor piping?:This chapter applies to the quality inspection and acceptance of the outdoor heating pipe network installation of the plant and the civil building group (residential area) with the saturation steam pressure not greater than 0.7MPa, and the hot water temperature not exceeding 130 degrees celsius.
Q:Are steel pipes suitable for wastewater treatment facilities?
Steel pipes are indeed a suitable option for wastewater treatment facilities. These facilities commonly employ steel pipes because of their impressive strength, durability, and resistance against corrosion. Given that wastewater treatment facilities often deal with corrosive and abrasive substances, steel pipes have the ability to endure these harsh conditions. Furthermore, steel pipes come in various sizes and configurations, allowing for effortless installation and customization to meet the specific requirements of the facility. Moreover, if necessary, steel pipes can be easily repaired or replaced, ensuring the long-lasting and dependable nature of the wastewater treatment system. Ultimately, steel pipes are an appropriate choice for wastewater treatment facilities due to their strength, durability, corrosion resistance, and flexibility for installation and maintenance.
Q:What are the different types of steel pipe supports for offshore platforms?
There are several different types of steel pipe supports used for offshore platforms, including pipe racks, pipe clamps, pipe hangers, and pipe saddles. Pipe racks are used to support multiple pipes and provide a structure for them to rest on. Pipe clamps are used to secure individual pipes to structures or walls. Pipe hangers are used to suspend pipes from overhead structures, while pipe saddles are used to support pipes on horizontal surfaces. These different types of supports are designed to ensure the stability and integrity of the pipes in offshore environments.
Q:What are the different types of coatings used for internal lining of steel pipes?
There are several types of coatings used for the internal lining of steel pipes, including epoxy coatings, polyurethane coatings, cement mortar coatings, and thermoplastic coatings. These coatings help to protect the steel pipes from corrosion, increase their lifespan, and improve the flow of fluids through the pipes.
Q:What are the different methods of pipe repair for steel pipes?
There are several methods for repairing steel pipes, including spot repair, slip lining, pipe bursting, and pipe relining. Spot repair involves cutting out and replacing a small section of the damaged pipe. Slip lining involves inserting a smaller diameter pipe into the existing pipe to reinforce it. Pipe bursting involves breaking the old pipe while simultaneously installing a new one. Pipe relining involves inserting a liner into the damaged pipe and then curing it in place to create a new, seamless pipe within the existing one. The choice of method depends on the extent and location of the damage, as well as budget and time constraints.
Q:What are the factors to consider when selecting pipe materials for corrosive environments?
When selecting pipe materials for corrosive environments, there are several important factors to consider in order to ensure the longevity and effectiveness of the piping system. 1. Corrosion Resistance: The most crucial factor to consider is the corrosion resistance of the pipe material. It is essential to choose a material that is highly resistant to corrosion, as corrosive environments can cause significant damage to pipes over time. Materials such as stainless steel, fiberglass, and certain types of plastics like PVC and CPVC are known for their excellent resistance to corrosion. 2. Chemical Compatibility: It is important to assess the chemical compatibility of the pipe material with the specific corrosive environment it will be exposed to. Different materials have different resistance levels to various chemicals, so it is crucial to ensure that the chosen material can withstand the specific chemicals present in the environment. Consulting chemical compatibility charts and seeking expert advice can help in making the right material selection. 3. Temperature and Pressure Requirements: The temperature and pressure conditions within the corrosive environment should also be considered when selecting pipe materials. Some materials may have limitations in terms of their temperature and pressure resistance, and exceeding these limits can lead to pipe failure. It is important to choose a material that can handle the required temperature and pressure ranges without compromising its structural integrity. 4. Cost: The cost of the pipe material and its installation should also be taken into account. While certain materials may be highly resistant to corrosion, they can also be more expensive. It is essential to strike a balance between the desired level of corrosion resistance and the available budget. 5. Maintenance and Durability: The maintenance requirements and overall durability of the pipe material should be evaluated as well. Some materials may require more frequent inspections, cleaning, or repairs compared to others. Considering the anticipated lifespan of the piping system and the ease of maintenance can help in selecting a material that will provide long-term reliability and cost-effectiveness. In conclusion, when selecting pipe materials for corrosive environments, one should consider factors such as corrosion resistance, chemical compatibility, temperature and pressure requirements, cost, and maintenance and durability. By carefully evaluating these factors, one can choose a pipe material that best suits the specific corrosive environment and ensures a reliable and long-lasting piping system.
Q:What are the different types of expansion joints used with steel pipes?
There are several types of expansion joints commonly used with steel pipes, including bellows expansion joints, slip expansion joints, and flanged expansion joints. Bellows expansion joints are flexible connectors made of a series of convolutions that allow for axial, lateral, and angular movement. Slip expansion joints consist of two pipe sections with a sliding sleeve in between, allowing for limited axial movement. Flanged expansion joints are designed with flanged ends to provide flexibility and accommodate movement in all directions. These various types of expansion joints are used to absorb thermal expansion, vibration, and misalignment in steel pipe systems.
Q:Can steel pipes be used for underground water supply networks?
Steel pipes are a viable option for underground water supply networks; they possess qualities such as durability, strength, and corrosion resistance. These pipes are commonly employed due to their ability to endure high pressure and bear the weight of the soil and other external forces. Furthermore, steel pipes come in a range of sizes and can be easily welded, making them suitable for diverse water supply system needs. Nevertheless, it is crucial to consider factors like soil quality, the presence of corrosive substances or chemicals, and the necessity of routine maintenance to guarantee the long-lasting effectiveness of steel pipes in underground water supply networks.
Q:What is the difference between steel pipes and concrete-lined pipes?
The main difference between steel pipes and concrete-lined pipes lies in their composition and protective features. Steel pipes are typically made entirely of steel, providing strength and durability. On the other hand, concrete-lined pipes consist of a steel pipe coated with a layer of concrete. This lining offers additional protection against corrosion and abrasion. While steel pipes are more suitable for high-pressure applications and offer better resistance to external factors, concrete-lined pipes are commonly used in wastewater systems to prevent corrosion and extend the lifespan of the pipe.
Q:What are the factors that affect the pressure rating of steel pipes?
The pressure rating of steel pipes can be influenced by various factors. These factors include the strength of the material used, the thickness of the pipe wall, the diameter of the pipe, the temperature at which it operates, its resistance to corrosion, compliance with manufacturing standards, and the impact of external loads. The strength of the steel plays a crucial role in determining the pressure rating. Steel with higher strength can handle higher pressure levels, while weaker grades may have lower ratings. Thicker walls provide more resistance against internal forces, allowing pipes to handle higher pressures. The diameter of the pipe also affects its pressure rating. Larger pipes generally have higher ratings due to their larger cross-sectional area. High temperatures can weaken steel, reducing its strength and pressure rating. Therefore, maximum operating temperature should be considered. Corrosion can weaken the pipe material over time, leading to a decrease in pressure rating. Factors such as fluid type, pH levels, and environmental conditions can impact corrosion resistance. Compliance with industry standards is crucial in determining pressure ratings. These standards ensure proper manufacturing techniques and materials are used. External loads such as soil settlement or traffic can affect pressure ratings. Proper design, installation, support, and protection are necessary to maintain the pressure rating. Considering all these factors and consulting industry guidelines is important for determining appropriate pressure ratings for steel pipes in different applications.

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