Materials and Chemicals

Revised Steel Standard to Boost Efficiency, Cut Cost

07 March 2017

ASTM International’s committee on steel, stainless steel, and related alloys (A01) is revising a steel reinforcement standard that could lead to savings in material and construction costs, as well as greater design efficiency.

Proposed revisions to the standard (A416/A416M, Specification for Low-Relaxation, Seven-Wire Steel Strand for Prestressed Concrete) will add three higher-strength grades (310, 325, and 340) to the specification, representing a 15-25% increase in minimum tensile strength. Requirements for the three grades of higher-strength strand will be included in the new annex.

“In the global engineering and construction industries, there is considerable interest in high-performance materials for use in concrete structures,” says ASTM member Taejin Hwang, who his chairing the task group that is revising the standard. “For steel reinforcement, the term ‘high-performance’ encompasses several desired attributes including corrosion resistance, toughness, weldability, strength, and more.”

Hwang, a senior researcher at Korea Testing Certification in Gunpo, South Korea, says that the higher strength strands being added to A416 are manufactured in Asia and are being used in the construction of bridges, storage tanks, and other structures.

To contact the author of this article, email

Powered by CR4, the Engineering Community

Discussion – 0 comments

By posting a comment you confirm that you have read and accept our Posting Rules and Terms of Use.
Engineering Newsletter Signup
Get the Engineering360
Stay up to date on:
Our flagship newsletter covers all the technologies engineers need for new product development across disciplines and industries.

Upcoming Events