ASTMA421 5mm spiral pc steel wire 1. ASTMA421 , BS5896 , 2. Strength : 1470 -- 1770 Mpa 3. DIA : 4.8 , 5 , 7 , 8MM ASTMA421 5mm spiral pc steel wire Specification 1. Standard : ASTMA421 , BS5896 , JISG3536 2. Strength : 1470Mpa , 1570Mpa , 1670Mpa , 1770Mpa 3. Diameter : 4mm , 4.8mm , 5mm , 7mm , 9mm ASTM A416GradeNominal Dia (mm)Tolerance(mm)Nominal Section Area(mm2)Mass Per1000m(kg/1000m) ...