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    Galvanized Square Tubes – ASTM A500 Grade B, Anti-Rust, Ideal for Curtain Walls/Warehouse Racks

    Square and Rectangular Pipe are types of hollow structural sections (HSS) commonly used in construction, manufacturing, and engineering applications. They are characterized by their cross-sectional shape and are made from materials like steel, aluminum, or stainless steel. Our products are complete in specifications and have sufficient stock to meet your diverse needs.

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      product details

      Product Introduction

      Square and rectangular steel tubes, collectively known as hollow structural sections (HSS), are cold-formed welded steel profiles with hollow cross-sections. These structural members are classified as:

      Square Hollow Sections (SHS)
      Characterized by equal external width and height dimensions
      Formed from hot-rolled or cold-rolled steel coils
      Available in both welded and seamless varieties

      Rectangular Hollow Sections (RHS)
      Feature unequal width and height dimensions
      Maintain consistent wall thickness throughout
      Offer superior strength-to-weight ratio compared to solid bars

      pipes designed for superior load-bearing capacity and aesthetic appeal. Manufactured to ASTM A500, EN 10219, JIS G3463, and GB/T 6728 standards, these tubes are widely used in construction, machinery, and architectural applications.

      Production Process

      IOS 10799, ASTM A500, ASTM A513, EN 10219, EN10210, JIS G3466, GB/T 6728, ANSI/AISC 360, DIN 2395, BS 1387, AS/NZS 1163, etc.

      square steel pipe

      Welded Steel Pipe Steel Grade

      According to different application environments, choose the appropriate steel grade.

      ASTM EN JIS GB
      ASTM A36 S195 SS330 Q195
      ASTM A283 GrC S235JR SS400 Q215
      ASTM A283 GrD S235JR SS400 Q235
      ASTM A572 Gr50 S355JR SM490 Q345
      ASTM A572 Gr60 S355J2 SM520 Q390
      ASTM A572 Gr65 S420ML SM570 Q420
      ASTM A572 Gr70 S460ML SM570 Q460
      ASTM A513 Type5 C22 S20C 20#
      ASTM A513 Type6 C45 S45C 45#

      Normal sizes

      (1)Square Pipe

      ASTM EN JIS GB
      3/4” * 3/4” 20*20 20*20 20*20
      1” * 1” 25*25 25*25 25*25
      1-1/4” * 1-1/4” 30*30 30*30 30*30
      1-1/2” * 1-1/2” 40*40 40*40 40*40
      2” * 2” 50*50 50*50 50*50
      2-1”2 * 2-1”2 60*60 60*60 60*60
      3” * 3” 80*80 80*80 80*80
      4” * 4” 100*100 100*100 100*100
      5” * 5” 120*120 120*120 120*120
      6” *6” 150*150 150*150 150*150

      (2)Rectangular Pipe

      ASTM EN JIS GB
      3/4” * 1/2” 20*10 20*10 20*10
      1-1/4” * 1/2” 30*15 30*15 30*15
      1-1/2” * 3/4” 40*20 40*20 40*20
      2”*1” 50*25 50*25 50*25
      2-1/2” * 1-1/4” 60*30 60*30 60*30
      3” * 1-1/2” 80*40 80*40 80*40
      4” * 2” 100*50 100*50 100*50
      5” * 2-1/2” 120*60 120*60 120*60
      6” * 3” 150*75 150*75 150*75
      8” * 4” 200*100 200*100 200*100

      Advantages

      Building Structures: Square and rectangular tubes are widely used in constructing building frameworks. They serve as columns, beams, and bracing members, providing essential support for the overall structure. Their high strength - to - weight ratio helps in reducing the overall weight of the building while maintaining its stability, making them suitable for both low - rise and high - rise buildings.​
      Facades and Cladding: These tubes are used to support building facades and cladding materials. Their flat surfaces provide an easy - to - attach base for various facade materials such as stone, glass, or metal panels, enhancing the aesthetic appeal of the building.​
      Roofing Systems: Square and rectangular tubes are used in roof truss construction. Their shape can be optimized to distribute roof loads evenly, accommodating different roof pitches and spans.​

      Machinery Frames: They are extensively used in the fabrication of machinery frames. Their precise dimensions and straight sides enable easy alignment and assembly of other machine components, ensuring the smooth operation of the machinery.​
      Automotive and Aerospace Applications: In the automotive industry, square and rectangular tubes are used in vehicle frames, roll cages, and suspension components. In the aerospace sector, they may be used in non - critical structural components where their lightweight and high - strength properties are beneficial.​
      Conveyor Systems: Square and rectangular tubes form the framework of conveyor systems, supporting the weight of conveyed materials and withstanding the mechanical stresses during operation.​

      Furniture Frames: These tubes are a popular choice for modern furniture design. They can be used to create the frames of chairs, tables, sofas, and beds. Their sleek appearance and strength allow for the creation of unique and durable furniture pieces.​
      Partition Walls and Room Dividers: Square and rectangular tubes are used to construct partition walls and room dividers. They can be combined with glass, wood, or fabric to create functional and aesthetically pleasing dividers that separate spaces while maintaining an open feel.​
      Display Racks and Shelving Units: They are ideal for building display racks and shelving units in stores, warehouses, and homes. Their strength can support heavy items, and their modular nature allows for easy customization of the layout.​

      Playground Equipment: Square and rectangular tubes are used in the construction of playground equipment such as swings, slides, and climbing frames. Their durability and ability to withstand outdoor elements make them suitable for long - term use in playgrounds.​
      Outdoor Furniture and Structures: They are used to create outdoor furniture like patio tables, chairs, and pergolas. Their corrosion - resistant properties (especially when made of stainless steel or aluminum alloy) ensure they can withstand rain, sun, and wind.​
      Sports Facilities: Square and rectangular tubes are used to construct goalposts, basketball hoops, and fencing around sports fields. Their stability is crucial for ensuring the safety of athletes during sports activities.

      Square and Rectangular Pipe (1)
      Square and Rectangular Pipe (2)

      Packaging and Shipping

      Standard export packing. The modes of transportation include containerized sea freight, bulk sea freight, air freight, land transportation, and multi-modal transportation.

      Square and Rectangular Pipe (3)
      Square and Rectangular Pipe (4)

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      Q: What is the difference between square tubes and rectangular tubes?

      A: The four sides of a square tube are equal in length, while the two pairs of sides of a rectangular tube are unequal in length. Rectangular tubes are more suitable for applications that require a specific load-bearing direction. 

      Q: Can custom sizes be accommodated?

      A: Yes, we offer customized sizes and surface treatments tailored to your specific requirements.

      Q:Do you offer galvanized or painted tubes?

      A:Yes, we provide hot-dip galvanized (HDG) and powder-coated options for corrosion resistance.

      Q: What’s the maximum length available?

      A: Standard: 6m (20ft), but we can customize up to 12m (40ft) for special orders.

      Q: How do I choose between cold-formed and hot-rolled tubes?

      Cold-formed: Better precision, smoother finish (for visible structures).
      Hot-rolled: Higher strength, thicker walls (for heavy-load applications).

      Q: Which countries do you export to?

      A: We have a global presence, exporting to many countries, including the US, UK, Canada, Ireland, Sweden, Saudi Arabia, Cameroon, Tanzania, Singapore, South Korea, Mexico and more.

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