ASTM A1076/A1076M-20 - 1.5.2020
 
1. Scope

1.1 This specification covers round, square, rectangular, and special shape, electric-resistance-welded structural tubing produced from precoated sheet steel with the following coatings on both sides: zinc (galvanized) or 55% aluminum-zinc alloy or zinc-5 % aluminum alloy-coated. This product is intended for applications requiring minimum mechanical properties and corrosion resistance of both exterior and interior surfaces.

1.2 This specification covers:

1.2.1 Three grades of round tubing and three grades of shaped tubing, identified in Table 1 (Chemical Requirements), Table 2 (Mechanical Requirements of Round Structural Tubing), and Table 3 (Mechanical Requirements of Shaped Structural Tubing).

1.2.2 Three different types of coating composition/designations (Section 7).

1.3 This specification is applicable to orders in either inch-pound units (as A1076) or SI units (as A1076M). Within the text, SI units are shown in brackets. The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

 
2. Referenced Documents

A90/A90M-21

Standard Test Method for Weight [Mass] of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy Coatings

A370-23

Standard Test Methods and Definitions for Mechanical Testing of Steel Products

A653/A653M-23

Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

A875/A875M-23

Standard Specification for Steel Sheet, Zinc-5 % Aluminum Alloy-Coated by the Hot-Dip Process

A792/A792M-23

Standard Specification for Steel Sheet, 55 % Aluminum-Zinc Alloy-Coated by the Hot-Dip Process

A924/A924M-22a

Standard Specification for General Requirements for Steel Sheet, Metallic-Coated by the Hot-Dip Process (Includes all amendments and changes 11/7/2022).

B750-22

Standard Specification for GALFAN (Zinc-5 % Aluminum-Mischmetal) Alloy in Ingot Form for Hot-Dip Coatings

A902-23a

Standard Terminology Relating to Metallic Coated Steel Products (Includes all amendments and changes 11/29/2023).

A500/A500M-23

Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes