Product Details
The prestressed steel strand is one of the most important products in our enterprise, which is used to match the highend structurd of concrete such as railways, highways, bridges, mine, nuclear power plant, hydropower, large-span buildings and so on.
High strength prestressed steel strand
Standard: GB/T5224, ASTM416, BS5896, JIS G3536, UNE 36094, KS D, AS/NZS4672
Structure And Size: 1×7wires - 9.5/11.1/12.7/15.2/15.7/17.8/21.6 mm
Good performance characteristic:
High Tensile Strength And Elongation;
Low Relaxation Value;
Small Stress Losing;
Excellent Durable Anti-Fatigue Performance
GB/T5224-2014
Grade |
Nominal DIA
of Strand
|
Tolerance |
Steel Area
of Strand
|
Weight
of Strand
|
MIN Breaking Strength
of Strand
|
MIN Load
at
0.2% Extension
|
Elongation
L0≧500mm
|
Relaxation Properties |
mm |
mm |
m㎡ |
kg/1000m |
kN |
kN |
% |
70% Initial Actual Load |
80% Initial Actual Load |
1860 |
9.53 |
0.5 0.15 |
54.8 |
430 |
102 |
89.8 |
≧3.5 |
≦2.5 |
≦4.5 |
12.7 |
0.4 0.15 |
98.7 |
775 |
184 |
162 |
15.2 |
140 |
1101 |
260 |
229 |
15.7 |
150 |
1178 |
279 |
246 |
ASTM A416/A416M
Grade |
Nominal DIA
of Strand
|
Tolerance |
Steel Area
of Strand
|
Weight
of Strand
|
MIN Breaking Strength
of Strand
|
MIN Load at 1%
Extension
|
Elongation
L0≧600mm
|
Relaxation
Properties
|
mm |
mm |
m㎡ |
kg/1000m |
kN |
kN |
% |
70% Initial Specified Load |
80% Initial Specified Load |
270 |
9.53 |
0.65 0.15 |
54.8 |
432 |
102.3 |
92.1 |
≧3.5 |
≦2.5 |
≦3.5 |
12.7 |
98.7 |
775 |
183.7 |
165.3 |
15.2 |
140 |
1102 |
260.7 |
234.6 |
BS5896: 2012
Grade |
Nominal DIA
of Strand
|
Steel Area
of Strand
|
Weight
of Strand
|
Characteristic value
of
MAX force
|
MAX value of
MAX force
|
Characteristic value
of
0.1% proof force
|
Total MIN percentage Elongation
at MAX force with L0≧500mm
|
Relaxation
Properties
|
mm |
m㎡ |
kg/1000m |
kN |
kN |
kN |
% |
70% initial
force
|
80%
initial force
|
270 |
9.6 |
55 |
429.6 |
102 |
117 |
89.8 |
≧3.5 |
≦2.5 |
≦4.5 |
12.5 |
93 |
726.3 |
173 |
199 |
152 |
12.7 |
112 |
874.7 |
208 |
239 |
183 |
12.9 |
100 |
781 |
186 |
214 |
164 |
15.2 |
139 |
1086 |
259 |
298 |
228 |
15.7 |
150 |
1172 |
279 |
321 |
246 |
We can also produce the pc strand according to AS/NZS 4672:2007, IS 14268-2017 and prEN 10138-3:2009
Production Process And Work Shop
Process as below:
Raw Materials(tested wire rod)→ Surface Treatment → First Drawing → Strand(9 times drawing) → Stabilizing Treatment → Rust-Proof And Coiling → Packing
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