Product Types

Structural Tubing

Kloeckner is dedicated to offering customers breadth and depth of structural tubing options.

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Formats

Kloeckner is one of the largest processors and distributors of structural tubing in North America. Thanks to our extensive inventory, vendor and branch network, and expert team, we’re able to provide customers with the widest array of product at the highest level of service.
  • Square Structural
    Square Structural Tubing Routinely Stocked In The Following Size Ranges And Standard Lengths (Standard Lengths 20', 24', 40' and 48'):
    Grades
    Size Range
    ASTM A-500 GR C
    Size
    3/4" - 12"
    Wall thickness
    1/8" - 1/2"
    ASTM A-500 GR B
    Size
    3/4" - 12"
    Wall thickness
    1/8" - 1/2"
  • Round Structural
    Round Structural Tubing Routinely Stocked In The Following Size Ranges And Standard Lengths (Standard Lengths 20'):
    Grades
    Size range
    ASTM A-500 GR B
    size
    1/2" - 4"
    wall thickness
    0.065" - 0.250"
    AISI-1020
    size
    1/2" - 4"
    wall thickness
    0.065" - 0.250"
  • Rectangular Structural
    Rectangular Structural Tubing Routinely Stocked In The Following Size Ranges And Standard Lengths (Standard Lengths 20', 24', 40' and 48'):
    grades
    size range
    ASTM A-500 GR C
    size
    1-1/2" - 12"
    size
    1" - 6"
    wall thickness
    1/8" - 1/2"
    ASTM A-500 GR B
    size
    1-1/2" - 12"
    size
    1" - 6"
    wall thickness
    1/8" - 1/2"
  • Hot Rolled Square Mechanical Carbon Steel
    Hot Rolled Square Mechanical Carbon Steel Tubing Routinely Stocked In The Following Size Ranges And Standard Lengths (Standard Lengths 20'):
    grades
    size range
    ASTM A-513 Type 1
    outer diameter
    1/2" - 3"
    wall thickness
    0.065" - 0.120"
  • Hot Rolled Round Mechanical Carbon Steel
    Hot Rolled Round Mechanical Carbon Steel Tubing Routinely Stocked In The Following Size Ranges And Standard Lengths (Standard Lengths 20'):
    grades
    size range
    ASTM A-513 Type 1
    outer diameter
    3/4" - 4"
    wall thickness
    0.065" - 0.120"
  • Hot Rolled Rectangular Mechanical Carbon Steel
    Rectangular Structural Tubing Routinely Stocked In The Following Size Ranges And Standard Lengths (Standard Lengths 20'):
    grades
    size range
    ASTM A-513 Type 1
    size
    1-1/2" - 5"
    size
    1" - 2-1/2"
    wall thickness
    0.083" - 0.120"

Frequently Asked Questions

  • What is the difference between mechanical and structural tubing?

    ANSWER:

    Structural tubing, also called hollow structural sections or HSS, is used for structural applications that rely on its standard strength requirements. In comparison, mechanical tubing is used for more mechanical and lighter gauge structural applications.

  • What is square pipe called?

    ANSWER:

    Structural tubing is commonly called hollow structural sections, or HSS, and square HSS is sometimes referred to as tube steel or box section. When customers refer to square pipe, they likely mean tube steel or box section.

  • Is tubing stronger than pipe?

    ANSWER:

    Due to a number of reasons, tube is inherently stronger than pipe. You’ll find that the performance of steel tube is superior to steel pipe in applications requiring more strength and durability.

  • What thickness does square tubing come in?

    ANSWER:

    Kloeckner Metals offers square structurals in wall thicknesses of up to 1/2″. While we routinely stock square tubing in widths of up to 12″, it is also available in widths of up to 20″.

  • What is the difference between tubing and piping?

    ANSWER:

    We wrote at length about the difference between steel pipe and steel tube. In short, while a pipe is always round, a tube can be one of many shapes, including round, square, rectangular, and oval. Pipes generally carry fluids or gasses, while tubes, because of their superior strength and durability, are designed for applications spanning the medical, aerospace, industrial, transportation, military, architecture, and construction industries.

Additional Product Types

Kloeckner carries over 200,000 products vital to the metals industry including bars, pipes, structurals, and plates. With over 50 branches located across North America, we make it easy to get what you need. Simplify your purchasing by getting all of your products from one source, Kloeckner.
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