General Intro
Prestressed Steel Strand is an engineered steel PC wire with multi-sides profiles, special for reinforcement of prestressed concrete structure.
PC steel strand is the simplified term describing Prestressed Concrete Steel Strand Wire. With the advantages of high tensile strength and good corrosion resistance at elevated temperature, PC Strand wire is used in heavy loading concrete constructions. It is made with galvanized steel wire or carbon steel wire through drawing, twisting or stranding and stabilizing. The stranded wire structures allow high tension and less distortion in uses.
Common sizes: 9.3 mm. 9.6.12.7, 12.5, 12.9, 11.11, 11.3, 15.24 and 15.7 mm.
Raw Materials: High-carbon steel wire rods, SWRH 82B
Processing: Continuous drawing by means of big reduction of area, twist, stabilizing treatment
Features: High tensile strength, low relaxation, stable modulus of elasticity, stress-relieved, firm connection with concrete, low stress, stable construction, good combination with steel reinforced concrete; saving material, reducing distortion and construction weight, increasing the abrasion resistance, water resistance, stiffness.
Standards We Follow: Concreate PC Strand confirms 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.
Prestressed steel concrete strand or PC strand can also be supplied in various forms for pre- or post-tensioning applications, with plain or galvanized material ranging from 3 wires, 7 wires, 19 wire and compacted construction.
Packing: Export anti-rust packing with vapors corrosion inhibiting technology and 3 coatings. There are two wooden pallets on the bottom.
Application
Our PC strand is mainly used for the reinforcement of prestressed concrete structures, such as large-span railway and road bridges, major bridges, silos, buildings, dams, floor slabs, foundations, large concrete vessels, atomic reactor buildings, stadiums, airport hangers, pre-cast segments, crane beams, anchorages and multi-storey industrial buildings etc.
Our PC strand is also used for the construction of highways, poles and water towers in civil construction, and energy source sea transportation, house buildings, water control projects, and rock and earth anchoring components to increase the tensile force.
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
607080
1.02.54.5
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
The standard of PC steel wire:
1.GB/T 5223-2002
2.ASTM A648
3.BS 5896-1980
4.ASTM A421
Concreate can supply 2 sides, 3 sides and 4 sides low relaxation indented PC steel wire.Need more information about Concreate Reinforcing Products? Contact us now.