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Prestressed concrete steel strand
Unbonded prestressed steel strand
International standard such as ASTM A416, BS5896, JIS 3536
Prestressed concrete steel wire
 

The product is mainly used as auxiliary reinforcing strand for concrete structure e.g. long spanned bridge on railway and highway, overhead crane beam, rock and earth anchoring construction, multirloor industrial building etc.

     

1*2 pc Strand parameter

Structure

Nominal diameter
(mm)

Tolerance
(mm)

Area of section
(mm)

Theoretical Weight per 1000meter(kg)

Tensile strength
(MPa)

Breakage Load
(KN)

Yielding Load
(KN)

Elongation
(%)

Relaxation value 1000h
no more than

Initiate load

No less than

70%

80% 70%

80%

1x2

5.00

+0.20
-0.10

9.81

77.0

1570
1720
1860

15.4
16.9
18.2

13.1
14.3
15.5

3.5

8.0

12 2.5

4.5

 

8.00

+0.30
-0.15

25.3

199

1470
1570
1720
1860

37.2
39.7
43.5
47.1

31.61
33.7
37.0
40.0

10.00

+0.30
-0.15

39.5

310

1470
1570
1860

58.1
62.0
67.9

49.4
52.7
57.7

12.00

+0.30
-0.15

56.9

447

1470
1570
1720

83.7
89.3
97.9

71.1
75.9
83.2

standard

GB/T5224-1995

1*3 pc Strand parameter

Structure

Nominal diameter
(mm)

Tolerance
(mm)

Area of section
(mm)

Theoretical Weight per 1000meter(kg)

Tensile strength
(MPa)

Breakage Load
(KN)

Yielding Load
(KN)

Elongation
L0≥400
mm(%)

Relaxation value 1000h
no more than

Initiate load

Not less than

70%

80%

70%

80%

1x3

6.20

+0.20
-0.10

19.8

77

1570
1720
1860

31.1
34.1
36.8

26.4
29.0
31.3

3.5

8.0

12

2.5

4.5

6.50

+0.20
-0.10

21.3

104

1570
1720
1860

33.3
36.5
39.4

28.3
31.0
33.5

 

8.60

+0.30
-0.15

37.4

199

1470
1570
1720
1860

55.9
59.7
65.4
70.7

47.5
50.7
55.6
60.1

8.74

+0.30
-0.15

38.64

306

1570

60.6

51.5

10.80

+0.30
-0.15

59.3

465

1470
1570
1860

87.2
93.1
110

74.1
79.2
93.5

12.9

+0.30
-0.15

85.4

671

1470
1570
1720

126.0
134.0
146.9

107.0
114.0
124.9

standard

GB/T5224-1995

1*7 pc Strand parameter

Structure

Nominal diameter
(mm)

Tolerance
(mm)

Area of section
(mm)

Theoretical Weight per 1000meter(kg)

Tensile strength
(MPa)

Breakage Load
(KN)

Yielding Load
(KN)

Elongation
(%)

Relaxation value 1000h
no more than

Initiate load

No less than

70%

80%

70%

80%

1x7
Standard

9.50

+0.30
-0.15

54.8

432

1860

102

86.6

3.5

8.0

12

2.5

4.5

11.0

+0.30
-0.15

74.2

580

1860

138

117

12.7

+0.40
-0.20

98.7

774

1860

184

156

15.2

+0.40
-0.20

139

1101

1720

239

203

1860

259

220

1x7
Diedrawn

12.7

+0.40
-0.20

112

890

1860

209

178

15.2

+0.40
-0.20

165

1295

1820

300

255

standard

GB/T5224-1995

 

 
 
 
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