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Prestressed concrete steel bar used for concrete pile
Nominal diameter: 7.1mm,9.0mm,10.7mm,12.6mm
Nominal diameter in KS standard : 7.4mm, 9.2mm, 11mm, 13mm
Size | Surface | Tensile strength | Stipulated non-proportional extension strength | Relaxation rate | Straightness | Elongation |
mm | MPa | MPa | % | % | ||
7.1 | Spiral groove | ≥1420 | ≥1280 | ≤2 | Take the steel bar in 1meter, placed on a plane, the chord and the arc of medial maximum natural vector height less than 2mm | ≥7 |
9 | ||||||
10.7 | ||||||
12.6 |
Standard:JISG3137-1994(Japan) and GB/T5223.3-2005(China),Korea KS standard.
shipment by :20'GP container.
prestressed concrete steel bar for spun piles