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;
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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 |
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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)
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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.
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Chemical Composition (JIS G3137 : 2008)
Chemical Composition (%) |
P |
S |
Cu |
0.03 Max |
0.035 Max |
0.30 Max |