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Prestressed Concrete (PC)




PC Bar | Sumiden Serasi Wire Products | Sumiden Indonesia

Standard Packing of Sumi-Twist PC Grooved Wire

Nominal
Diameter
Unit Length
(m)
Unit Weight
(Kg)
A B C
Outside
Diameter(mm)
Inside
Diameter(mm)
Width
(mm)
7.1 mm 3,185 1,000 2,300±50 2,000 +10 180 ± 5
-0
9.0 mm 1,992 1,000 2,300±50 2,000 +10 180 ± 5
-0
10.7 mm 1,414 1,000 2,300±50 2,200 +10 240 ± 5
-0
12.6 mm 1,014 1,000 2,300±50 2,200 +10 240 ± 5
-0

PC Grooved Wire (Sumi-Twist Bar)

Made from high carbon (30C) alloy steel. Has the following properties :

  • High tensile strength and tenacity ;
  • Heading process can be applied without losing its mechanical properties ;
  • Preliminary threading is not required in the threading process ;
  • If applied with strict control, spot welding with caging wire can be performed without losing mechanical properties ;
  • High bondability with concrete can be obtained because of its groveed surface ;
  • Re-straightening process is not required before cutting to lenght;
  • Mechanical Properties (SNI 7701 : 2016 KBjP-Q NG)

    Nominal
    Diameter
    (mm)
    Nominal
    Cross-Sectional
    Area
    (mm²)
    Unit Weight(Kg/m) Tensile Strength
    (kgf/mm²)
    (N/mm²)
    Yield Strength at 0.2%
    (kgf/mm²)
    (N/mm²)
    Elongation
    (%)
    Straightness*)
    Refer to JIS G3137
    (mm)
    Relaxation Value (%)
    Minimum
    (kg/m)
    Maximum
    (kg/m)
    Initial Stress Testing Time %
    7.1 40.0 0.301 0.327 Min. 145
            1420
    Min. 130
            1275
    Min. 5 Max. 30 0.60 pu1
    or
    0.70 pu1
    or
    0.80 pu1
    200 hr, extrapolated 1000h Max. 2.0
    or
    Max. 4.0
    or
    Max. 9.0
    9.0 64.0 0.482 0.522 Min. 145
            1420
    Min. 130
            1275
    Min. 5 Max. 30
    10.7 90.0 0.679 0.735 Min. 145
            1420
    Min. 130
            1275
    Min. 5 Max. 30
    12.6 125.0 0.942 1.02 Min. 145
            1420
    Min. 130
            1275
    Min. 5 Max. 30
  • Mechanical Properties ( JIS G3137:2008, Grade D SBPDN 1275/1420 )

    Nominal
    Diameter
    (mm)
    Nominal
    Cross-Sectional
    Area
    (mm²)
    Unit Weight(Kg/m) Tensile Strength
    (kgf/mm²)
    (N/mm²)
    Yield Strength at 0.2%
    (kgf/mm²)
    (N/mm²)
    Elongation
    (%)
    Straightness
    (mm)
    Relaxation Value (%)
    Standard
    Mass(m0)
    (kg/m)
    Min
    (kg/m)
    Max
    (kg/m)
    Initial Stress Testing Time %
    7.1 mm 40.0 0.314 0.295 0.333 Min. 145
            1420
    Min. 130
            1275
    Min. 5 Max. 30 0.70 pu1 1000 h Max. 4.0
    9.0 mm 64.0 0.502 0.472 0.533 Min. 145
            1420
    Min. 130
            1275
    Min. 5 Max. 30
    10.7 mm 90.0 0.707 0.664 0.749 Min. 145
            1420
    Min. 130
            1275
    Min. 5 Max. 30
    12.6 mm 125.0 0.981 0.922 1.04 Min. 145
            1420
    Min. 130
            1275
    Min. 5 Max. 30
    *) pu1 : Specified minimum breaking strength(load)
  • Chemical Composition (SNI 7701 : 2016 KBjP-Q NG)

    Chemical Composition (%)
    P S Cu
    0.03 Max 0.035 Max 0.30 Max
    Note :
    Carbon Steel or alloy steel should not contain the elements of more than listed above .

    Chemical Composition (%)
    Si Mn Cr B Nb Ti Mo Ni
    0.6 Min 1.65 Min 0.3 Min 0.0008 Min 0.06 Min 0.05 Min 0.08 Min 0.3 Min
    Note :
    Alloy steel in this standard are carbon steels containing one or more of the element listed above.
  • Chemical Composition (JIS G3137 : 2008)

    Chemical Composition (%)
    P S Cu
    0.03 Max 0.035 Max 0.30 Max
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