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ASTM Tube Specification

Our HSS SuperStruct square, rectangle and custom-shaped tubes conform to the standards set out by the ASTM International's Specification A1065 - Cold Formed Electric-Fusion (Arc) Welded High Strength Low Alloy (HSLA) Structural Tubing in Shapes. For more detailed information about ASTM A1065 and standard tolerances, such as wall thickness, length, straightness, squareness of sides, twist and corner radius, please click here.

To find dimensional properties of the A1065 square and rectangle HSS SuperStruct tube sizes that we produce, including the moment of inertia, elastic section modulus, along with the torsional stiffness and shear constant, please contact us.

ASTM Material Specifications

Unless otherwise requested by our customer, the steel used to produce our HSS SuperStruct tube sections will meet the requirements of ASTM A572 Grades 50 and 50W (enhanced atmospheric corrosion resistance). In addition, options such as ASTM A572 Grade 65 and Grade 70 are available, along with ASTM A588 Weathering Steel. For a quote, please inquire with your specific requirements (whether listed here or not) at the time of your request.

Testing Options

Below are the testing options currently offered with HSS SuperStruct orders. If there is a need for a testing requirement not listed below, please inquire.

  • Yield, Tensile and Elongation values (standard).
  • Charpy V Notch Test (optional). If required, please state at the time of inquiry and order placement with specific values.
  • Ultrasonic Testing (optional). If required, please state at the time of inquiry and order placement. Additional lead time and charges will apply.
  • If 100% weld penetration is required, this option must be requested by the customer in advance.
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