PC Strand Series
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Spiral PC Wire
Spiral ribs pc steel wire:
1.Diameter: 4.00mm-12.00mm.
2.Standard: ASTM,BS,DIN,GB.
3.Intensity: 1570Mpa,1670Mpa,1770Mpa.
Spiral ribs pc steel wire
We are a professional manufacturer of pc steel wire in China .
Executive Standard
GB/T5223-2002
Nominal Diameter Dn/mm |
Tensile Qb/Mpa Not less than |
Provides non-proportional elongation stress Qp0.2/Mpa Not less than |
Under the total elongation of the most vigorous (Lo=200mm) Gt/% Not less than |
Bending frequency (Times/180°) Not less than |
4.00 5.00 6.00 7.00 8.00 |
1570 1670 1770 |
1180 1250 1330 1100 1180 1250 1330 |
1.5 |
4 4 5 5 5 |
1470 1570 1670 1770 |
Bend radius R/mm |
Section shrinkage Not less than |
210mm torque of the reverse of each is not less than the number of n |
Initial stress is equivalent to 70% of the nominal tensile strength, when, 1000h after the stress relaxation rate of R% is not greater than |
10 |
35
35 |
8 |
8 |
15 |
8 |
||
16 |
7 |
||
20 |
6 |
||
20 |
5 |
A 421/A 421M-05
Tensile Strength Requirements
Nominal Diameter,mm (in) |
Tensile Strength,min,Mpa(psi) |
|
Type BA |
Type WA |
|
4.88(0.192) |
|
1725(250 000) |
4.98(0.196) |
1655(240 000) |
1725(250 000) |
6.35(0.250) |
1655(240 000) |
1655(240 000) |
7.01(0.276) |
1620(235 000) |
1620(235 000) |
Yield Strength Requirements
Nominal Diameter,mm (in) |
Intial Stress MPa(psi) |
Minimum Stress at 1% Extension,MPa(psi) |
|
Type BA |
Type WA |
||
4.88(0.192) |
200(29 000) |
|
1465(212 500) |
4.98(0.196) |
200(29 000) |
1407(204 000) |
1465(212 500) |
6.35(0.250) |
200(29 000) |
1407(204 000) |
1407(204 000) |
7.01(0.276) |
200(29 000) |
1377(199 750) |
1377(199 750) |