ASTM A416/A416M-17
- Standard Specification for Low-Relaxation, Seven-Wire Steel Strand for Prestressed Concrete
- standard by ASTM International, 05/01/2017
- Category: ASTM
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1.1 This specification covers two grades of low-relaxation, seven-wire steel strand for use in prestressed concrete construction. Grade 250 [1725] and Grade 270 [1860] have minimum tensile strengths of 250 ksi [1725 MPa] and 270 ksi [1860 MPa], respectively, based on the nominal area of the strand.
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