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Name Dia. Tensile Strength Standard low relaxation unbonded Pcstrand 9.53mm-15.24mm 1770Mpa-1860Mpa GB5224, , ASTM A 416, BS 5896 1. Type: 1*3 wire& 1*7 wire 2. Tensile strength: 1720Mpa-1860Mpa 3. Standard: ASTM A 416, BS5896, GB5224, JISG 3536 etc... 4. Usage: Thepc strandis mainly used as auxiliary reinforcing strand for concrete structure, e.g. long spanned bridge's on railway and highway, overhead crane construction, multi-floor industrial building and etc... 5. Enquiry please let us know the standard, quantity, packing and coil weight requirement. Post-tensionde unbonded Prestressed concrete steel strand is suitable for cast-in-place concrete of long-span and wide buildings, large load prefabricatedbeam and other construction, it has the characters of no need room for future expansion and grout-on, convenient use, material saved, bend easy.