Galvanized Building Material Square Tube

Short Description:



Place of Origin:Tianjin, China
Standard:GB/T3091-2001,BS1387-1985,DIN EN10025,EN10219,JIS G3444:2004,ASTM A53 SCH40/80/STD,BS-EN10255-2004;
Surface:Pre-galvanized,Hot dip galvanized,Electro galvanized,Black,Painted,Threaded,Socket,Engraved;
Usage:Construction,Furniture,Water supply pipe, Gas pipe, Building pipe,Machinery,Coal mines,Chemicals,Electricity,Rrailway,Vehicles,Automotive industry,Highways,Bridges,Containers,Sports facilities,Agricultural,Machinery,Petroleum Machinery,Exploration machinery,Greenhouse construction;
Section Shape:Round
Outer Diameter:19 - 114.3 mm

Product Detail




Product Tags

The product description:

Product name hollow section square tube
Wall Thickness 0.7mm--13mm
Length 1--14mAccording to customer requirements ...
Outer Diameter 20mm*20mm---400mm*400
Tolerance Tolerance based on Thickness:±5~±8%
Shape square 
Material Q195---Q345,10#,45#,S235JR,GR.B-D,STK500,BS1387......
Surface treatment Galvanized
Zinc coating Pre-galvanized  square  tube:40--220G/M2Hot dip galvanized square tube :220--350G/M2
Certificate ISO,BV,CE,SGS
Payment terms 30%T/T deposit in advance,70%balance after B/L copy;100%Irrevocable L/C at sight,100% Irrevocable L/C after receive B/L copy 20--30days
Delivery times 25days after receive ur deposits
  1. Through a bundle
  2. According to customer’s requirement
Loading port Tianjin/Xingang

customer's benefit:

What benefits do customers get:

1.we are factory .( our price will have an advantage over trading companies.)

2.We will update the price regularly with customers according to the steel market price.

Our suggest is ,when prices go down, customers purchase products.Customers can get high quality products at low prices and we can get orders.

3.Customers can get high quality products and efficient service.


Product detail :

2 长度 1
Thickness Length Diameter



4 PRE GI TUBE 2 56

Product photos

 Zinc coating

diameter detail


Different from other factories:

  • Delivery date:We discussed the delivery date with the customer.
  • Prompt reply:After work, we will check the email in time,We will deal with emails from customers in time.Solve problems for customers in time.We provide efficient service
  • Port : our factory just 40 kilometers from Xingang port ,is biggest port in the north of China .
  •  The quality of the product:No joint pipe and square cut, deburred


Product photos :

Hot-dipped-Galvanized-Steel-Pipe-Square-Tube 2


Customer case:

An inquiry has been received from a customer in Singapore.The customer needs steel pipes.After we give the price to the customer.The customer says our price is high.Customers are compared with other suppliers.The customer purchased 10 containers in our factory for the first time .Now per month we are still supplying goods to this customer. The customer is satisfied with the quality of our products.Customers to our factory to establish long-term relations of cooperation.


Customer photos :

10 4 3


The customer purchased steel pipes in our factory. After the goods were produced, the customer came to our factory for inspection.

Main products :

Hot-dipped-Galvanized-Steel-Pipe-Square-Tube 4 焊管2
9ca1074903915b0c348b12fbc9e24af Patent Product2 1


Contact us:

Tianjin Min Jie Steel Co.,Ltd

Factory Address: No.B6-4 building, Oriental commercial street, Jinghai County, Tianjin. China

Contact person: linda

Wechat/whatsapp: +86 15028159378, skype:m15075132650

Tel: +86-022-68962601 


Mob: +86-15028159378

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  • Our Advantages:

    Source Manufacturer: We directly manufacture galvanized steel pipes, ensuring competitive pricing and timely delivery.

    Proximity to Tianjin Port: Our factory’s strategic location near Tianjin Port facilitates efficient transportation and logistics, reducing lead times and costs for our customers.

    High-Quality Materials and Strict Quality Control: We prioritize quality by using premium materials and implementing rigorous quality control measures throughout the manufacturing process, guaranteeing the reliability and durability of our products.

    Payment Terms:

    Deposit and Balance: We offer flexible payment terms, requiring a 30% deposit upfront with the remaining 70% balance to be settled after receiving the Bill of Lading (BL) copy, providing financial flexibility to our customers.

    Irrevocable Letter of Credit (LC): For added security and assurance, we accept 100% at sight Irrevocable Letters of Credit, offering a convenient payment option for international transactions.

    Delivery Time:

    Our efficient production process enables us to fulfill orders promptly, with a delivery time of within 15-20 days after receiving the deposit, ensuring timely supply to meet project deadlines and requirements.


    Our products meet stringent quality standards and are certified by reputable organizations, including CE, ISO, API5L, SGS, U/L, and F/M, demonstrating compliance with international regulations and specifications, and ensuring customer confidence in product quality and performance.

    Galvanized steel pipes find diverse applications across various industries and sectors:

    Construction/Building: Galvanized steel pipes are extensively used in construction for structural applications such as columns, beams, and framework due to their durability and strength.

    Material Steel Pipe: In manufacturing processes, galvanized steel pipes serve as raw material for fabricating various components and structures, contributing to the production of a wide range of products.

    Scaffolding Pipe: Galvanized steel pipes are commonly used as scaffolding poles and frames in construction sites due to their robustness and resistance to corrosion, providing a safe and stable support structure for workers.

    Fence Post Steel Pipe: Galvanized steel pipes are ideal for fence posts in residential, commercial, and agricultural settings, offering a sturdy and long-lasting solution for perimeter fencing.

    Fire Protection Steel Pipe: Galvanized steel pipes are utilized in fire protection systems for their ability to withstand high temperatures and corrosion, ensuring reliable performance in critical applications. 

    Greenhouse Steel Pipe: Galvanized steel pipes are crucial components in greenhouse construction, providing structural support for the framework and facilitating the distribution of water, nutrients, and heating systems.

    Low Pressure Liquid, Water, Gas, Oil, Line Pipe: Galvanized steel pipes are widely employed for transporting liquids and gases in low-pressure applications, including water supply networks, gas distribution lines, and oil pipelines.

    Irrigation Pipe: Galvanized steel pipes play a vital role in irrigation systems for delivering water to crops efficiently, ensuring optimal growth and productivity in agricultural fields.

    Handrail Pipe: Galvanized steel pipes are commonly used for handrails in various settings such as staircases, walkways, and balconies, providing stability, safety, and durability.

    In summary, the versatility, durability, and corrosion resistance of galvanized steel pipes make them indispensable across a broad spectrum of applications, ranging from construction and manufacturing to agriculture and infrastructure development.


    Head Office : 9-306 Wutong North Lane, North side of Shenghu Road, West District of Tuanbo New Town, Jinghai District,Tianjin ,China

    Welcome to visit our factory


    The official website of the company will send someone to reply to you on time. If you have any questions, you can ask



    The office phone is always open. You are welcome to call