Sources: ASTM International, West Conshocken, Pa.; CP staff
ASTM Committee A01 on Steel, Stainless Steel and Related Alloys has approved the inclusion of grades 310, 325, 340 product in A416/A416M, Specification for Low-Relaxation, Seven-Wire Steel Strand for Prestressed Concrete, representing a 15- to 25-percent increase in minimum tensile strength from existing grades. A new annex in the standard will reference the three grades.
Read More