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Bonded PC Strand
7 wire strand is mainly used for concrete structure,such as railway and highway, overhead crane construction ,multi-floor industrial building and etc, 7 wire strand have been widely applied to the major domestic rail,road,and construction
We can offer 7 wire strand conforming to the technical standards,such as GB/T5223-2002,GB/T5224-2003 or China,Astm A416 of the USA,BS5896:80 of Britain,JIS G3536-88 of Japan,or the strands agreed by both the customer and us.
7 wire strand specification:
Material: SWRH77B/SWRH82B
Tensile Strength: 1860Mpa
Packaging:
Inner diameter: 760mm
Outside diameter: 1400mm max
Coil's width: 760mm
Coil's Weight: 2500-3500kg
Type | mm Nominal Diameter | mm Diameter Tolerance | mm2 Nominal Area | KG/1000m Nominal Weight | KN Strength grade | Min.Breaking Strength | Min.Yield Strength | mm Min. Elongation at Max Load | Relaxation | |
Initial Load Of Min Nominal Breaking Strength | 1000h Value No More Than | |||||||||
Standard 7 wire strand | 9.3 | 0.3 | 52 | 408 | 1770 | 92 | 85%Min Breaking strength | 3.50% | 60% 70% 80% | 1% 2.5% 4.5% |
11 | -0.15 | 71 | 557 | 1770 | 125 | |||||
12.5 | 0.4 | 93 | 730 | 1770 | 164 | |||||
15.2 | -0.2 | 139 | 1090 | 1670 | 232 | |||||
Super 7 wire strand | 9.6 | 0.3 | 55 | 432 | 1860 | 102 | ||||
11.3 | -0.15 | 75 | 590 | 1860 | 139 | |||||
12.9 | 0.4 | 100 | 785 | 1860 | 186 | |||||
15.7 | -0.2 | 150 | 1180 | 1770 | 265 | |||||
