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Prestressed Material
12.7 mm PC Strand is 0.5 inches 7-wire steel strand for prestressed concrete. The first piece of 12.7 mm PC Strand was produced by us in the year 2007 and as per China National Standard GB/T5224 . For now , we produce it in accordance with standard ASTM A416 , have exported it to many countries in Americas .Our products have SGS inspected .
SPECIFICATIONS
12.7 mm PC Strand Breaking Strength
| Nominal Diameter of Strand, in. [mm] | Minimum Breaking Strength of Strand, lbf [kN] | Steel Area of Strand, in. 2 [mm 2 ] | Weight [Mass] of Strand lb/1000 ft [kg/1000 m] |
| Grade 250 [1725] | |||
| 0.500[12.7] | 36000[160] | 0.144[92.9] | 490[730] |
| Grade 270 [1860] | |||
| 0.500[12.7] | 41300[184] | 0.153[98.7] | 520[780] |
12.7 mm PC Strand Yield Strength
| Nominal Diameter of Strand in. [mm] | Initial Load, lbf [kN] | Minimum Load at 1.0 % Extension, lbf [kN] |
| Grade 250 [1725] | ||
| 0.500[12.7] | 3600[16.0] | 32400[144.1] |
| Grade 270 [1860] | ||
| 0.500[12.7] | 4130[18.4] | 37170[165.3] |
12.7 mm PC Strand Diameter Relation Between Center and Outer Wires
| Nominal Diameter of Strand, in. [mm] | Minimum Difference Between Center Wire Diameter and Diameter of Any Outer Wire, in. [mm] |
| Grade 250 [1725] | |
| 0.500[12.7] | 0.003[0.076] |
| Grade 270 [1860] | |
| 0.500[12.7] | 0.003[0.076] |
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