PC Strand

Prestressed steel strand is mainly used for the reinforcement of prestressed concrete structures, such as large-span railway and road bridges, crane beams,anchorages and multi-storey industrial buildings etc. We offer PC Strand which confirm to the technical standards such as GB/T 5223, GB/T 5224, ASTM A-416, BS 5896, JIS G3536 or the standards agreed by both of the customers and us.

PC StrandPC StrandPC Strand

1×2 Structure strand size and tolerance, reference quality per meter
Strand Structure Nominal Diameter Strand Diameter Tolerance
/mm
Strand reference sectional area
Sn/mm2
Strand reference quality per meter
/(g/m)
Strand Diameter
Dn/mm
Wire Diameter
d/mm
1×2 5.00 2.50 +0.15
-0.05
9.82 77.1
5.80 2.90 13.2 104
8.00 4.00 +0.25
-0.10
25.1 197
10.00 5.00 39.3 309
12.00 6.00 56.5 444
1×3 Structure strand size and tolerance, reference quality per meter
Strand Structure
Nominal Diameter
Strand Measurement
A/mm
Measurement A Tolerance
/mm
Strand reference sectional area
Sn/mm2
Strand reference quality per meter
/(g/m)
Strand Diameter
Dn/mm
Wire Diameter
d/mm
1×3
6.20
2.90
5.41
+0.15
-0.05
19.8
155
6.50
3.00
5.60
21.2
166
8.60
4.00
7.46
+0.20
-0.10
37.7
296
8.74
4.05
7.56
38.6
303
10.80 5.00 9.33 58.9 462
1×3 I
 12.90
6.00
11.20
84.8
666
8.74
4.05
7.56
38.6
303
1×7 Structure strand size and tolerance, reference quality per meter
Strand Structure Nominal Diameter
Dn/mm
Diameter Tolerance
/mm
Strand reference sectional area
Sn/mm2
Strand reference quality per meter/(g/m) Center wire diameter (do) enlarged range/% not less than
1×7 9.50 +0.30
-0.15
54.8 430 2.5
11.10 74.2 582
12.70 +0.40
-0.20
98.7 775
15.20 140 1101
15.70 150 1178
17.80 191 1500
(1×7)C 12.70 +0.40
-0.20
112 890
15.20 165 1295
18.00 223 1750
1×2 Mechanical properties of structural steel strand
Strand Structure Strand nominal diameter
Dn/mm
Abstract tensile strength Rm/Mpa not less than The largest force of the whole strand Fm/kN not less than Rated non-proportional extension force Total extension ratio at the largest force (Lo≥400)Agt/% not less than Stress Relaxation
Initial load equivalent to the percentage of the nominal largest force/% After 1000h stress relaxation rate r/% not less than
1×2 5.00 1570 15.4
13.9 3.5 60

70

80

1.0

2.5

4.5

1720 16.9 15.2
1860 18.3 16.5
1960 19.2 17.3
5.80 1570 20.7 18.6
1720 22.7 20.4
1860 24.6 22.1
1960 25.9 23.3
8.00 1470 36.9 33.2
1570 39.4 35.5
1720 43.2 38.9
1860 46.7 42.0
1960 49.2 44.3
10.0 1470 57.8 52.0
1570 61.7 55.5
1720 67.6 60.8
1860 73.1 65.8
1960 77.0 69.3
12.00 1470 83.1 74.8
1570 88.7 79.8
1720 97.2 87.5
1860 105 94.5
Note: Rated non-proportional extension force Fp0.2 is not less than 90% of the largest force of the whole strand
1×3 Mechanical properties of structural steel strand
Strand Structure Strand nominal diameter
Dn/mm
Abstract tensile strength Rm/Mpa not less than The largest force of the whole strand Fm/kN not less than Rated non-proportional extension force Total extension ratio at the largest force (Lo≥400)Agt/% not less than Stress Relaxation
Initial load equivalent to the percentage of the nominal largest force/% After 1000h stress relaxation rate r/% not less than
1×3 6.20 1570 31.1 28.0 3.5 60

70

80

1.0

2.5

4.5

1720 34.1 30.7
1860 36.8 33.1
1960 38.8 34.9
6.50 1570 33.3 30.0
1720 36.5 32.9
1860 39.4 35.5
1960 41.6 37.4
8.60 1470 55.4 49.9
1570 59.2 53.3
1720 64.8 58.3
1860 70.1 63.1
1960 73.9 66.5
8.74 1570 60.6 54.5
1670 64.5 58.1
1860 71.8 64.6
10.80 1470 86.6 77.9
1570 92.5 83.3
1720 101 90.9
1860 110 99.0
1960 115 104
12.90 1470 125 113
1570 133 120
1720 146 131
1860 158 142
1960 166 149
8.74 1570 60.6 54.5
1670 64.5 58.1
1860 71.8 64.6
Note: Rated non-proportional extension force Fp0.2 is not less than 90% of the largest force of the whole strand
1×7 Mechanical properties of structural steel strand
Strand Structure
Strand nominal diameter
Dn/mm
Abstract tensile strength Rm/Mpa not less than
The largest force of the whole strand Fm/kN not less than
Rated non-proportional extension force
Total extension ratio at the largest force (Lo≥400)Agt/% not less than
Stress Relaxation
Initial load equivalent to the percentage of the nominal largest force/%
After 1000h stress relaxation rate r/% not less than
1×7
9.50
1720
94.3
84.9
3.5

60

 

70

 

80

1.0

 

2.5

 

4.5

1860
102
91.8
1960
107
96.3
11.10
1720
128
115
1860
138
124
1960
145
131
12.70
1720
170
153
1860
184
166
1960
193
174
15.20
1470
206
185
1570
220
198
1670
234
211
1720
241
217
1860
260
234
1960
274
247
15.70
1770
266
239
1860
279
251
17.80
1720
327
294
1860
353
318
(1×7)C
12.70
1860
208
187
15.20
1820
300
270
18.00
1720
384
346
Note: Rated non-proportional extension force Fp0.2 is not less than 90% of the largest force of the whole strand