bridge using pc strand

PC Wire

ISO 9001:2008, ISO14001:2004 Qualified ;
Steel wire for tendons in prestressed concrete,
Used in PC pipeline, PC Sleeper, Bridge, Inclined Cable.
Manufacturer comply to standard GB/T5223,BS-5896,AS1310,ASTM A421 EN10138-2004, JISG3536

Low Relaxation PC Strand

Steel wire for tendons in prestressed concrete
Standard AS 1310-1987
      The low relaxation process is applied to PC wires to decrease the loss of relaxation, which
represents the stress decrease as a function of time, under an imposed strain of constant
magnitude. Structural calculation takes into consideration this loss; therefore, if relaxation loss is decreased, the
steel section for a given stress is also lesser.
The low relaxation characteristics are conferred to the product through a thermo-mechanical
process that heats the steel wires at a temperature of approximately 400 º C and
simultaneously submits them to a tensile stress such that it creates on the material a plastic
strain of the order of 1%.
Application: PC pipeline, PC Sleeper, Bridge, Inclined Cable,


      

AS1310-1987 PC Wire
nominal diameter (mm) diameter tolerance (mm) range of tensile strength MPa min strength at 0.2% non-proportional extension Mpa min elongation after fracture L0=250mm reverse bend relaxation
Min Max bend times bend radius mm initial stress nominal min tensile strength 1000h value no more than
normal low
2.0 +/-0.025 2000 2250 75% min tensile strength 1.5% min 3 times ~ ~ ~ ~
2.5 1850 2100
3.0 +/-0.005 1700 1950 85% min tensile strength 2.5% 10 70% 80% 6.5% 8.5% 2.0% 3.0%
3.0 1850 2100 10
4.0 1700 1950 3.5% 10
5.0 1550 1800 15
5.0 1700 1950 15
7.0 1550 1800 20
7.0 1620 1870 20
7.0 1700 1950 20
8.0 +/-0.075 1450 1700 25
8.0 1550 1800 25

Coil size, Packaging and Shipment:
Coil size: ID: approx.1.7m; OD: approx.2.2m; Thickness: approx.0.3m.
Coil weight: about 1500kg; can be adjusted according to the clients' demand.
Packing: PP Bag + PE film + water-free paper multiple packing.
Shipment: By 20’Container or Bulk Cargo Vessel.

PC Wire China Standard:GB/T5223-2003
PC Wire Australia Standard:AS1310-1987
PC Wire Americas Standard:ASTM A 421-1998
PC Wire UK Standard:BS5896-1980
PC Wire Japan Standard:JISG3536-1994

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PC Wire and Strand Specialist

PC 2-wire strand,   PC 3-wire Strand,

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Unbonded PC Strand,   PC wire Manufacturer

Contact us

Add: daqiuzhuan industry area Jinghai,Tianjin 301605,China

TEL:0086-22-2955681 FAX:0086-22-2639851

Email:sales@pc-strand-china.com

MSN: pc-strand-china@hotmail.com