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Galvanized Steel Strand
Galvanized Steel Strand overview
Galvanized steel strand also call Galvanized metal wire.It’s made from low carbon steel wire rods by way of drawing, pickling, annealing, galvanizing and cooling processes. hot-dipped galvanized surfaces have excellent corrosion resistance.it also can be used for other purposes, according to customers' requirement.
Application of galvanizing of strand
galvanized steel strand serves the construction of power and power grids and their retrofits. They are widely used in hangers, suspensions, communication wires, overhead power lines, cable steel cores, and fixed objects.
Product Description
It is used in bridge, construction, water conservancy, energy and geotechnical engineering.
Unbonded prestressed steel strand is often used in floor and foundation engineering.
Tensile strength: G1、G2、G3、G4
The Strand size:7×(1.44-4.2 mm),19×(1.44-3.5mm),37*(1.44-3.5mm)
standard: ASTM B498-2008,ASTM B232,EN50182-2001, ASTMA363-2003, ASTM A475-2003, BS183-79
Packaging
Related Specification
ASTM B 498-2008
|
Wire diameter |
Permissible Variation |
Adherence Test |
Stress at 1% Extension |
Tensile strength |
Elongation in 250mm |
Zinc coating Class A |
|
|
mm |
mm |
Ration of Mandrel D to Wire D (Dia) |
Class A MPa（min） |
Class A MPa（min） |
Class A %（min） |
mm |
g/ m² |
|
|
|
|
|
|
|
1.60 to 1.90 |
198 |
|
1.60 to 2.30 |
+0.04/-0.03 |
3 |
1310 |
1450 |
3.0 |
over 1.90 to 2.30 |
214 |
|
over 2.30 to 3.05 |
+0.05/-0.05 |
4 |
1280 |
1410 |
3.5 |
over 2.30 to 2.70 |
230 |
|
over 3.05 to 3.60 |
+0.08/-0.05 |
5 |
1240 |
1410 |
4.0 |
over 2.70 to 3.10 |
244 |
|
over 3.60 to 4.80 |
+0.10/-0.08 |
5 |
1170 |
1380 |
4.0 |
over 3.10 to 3.50 |
260 |
|
|
|
|
|
|
|
over 3.50 to 3.90 |
270 |
|
|
|
|
|
|
|
over 3.90 to 4.50 |
275 |
|
|
|
|
|
|
|
over 4.50 to 4.80 |
305 |
ASTM A 475-2003
|
Nominal Diameter of Strand. Inch (mm) |
Number of Wires in Strand |
Nominal Diameter of Coated Wires in Strand. (mm) |
Approximate Weight of Strand(kg/Km) |
Minimum Breaking Strength of Strand (KN) |
||||
|
|
|
|
|
Utilities Grade |
Common Grade |
Siemens Martin Grade |
High Strength Grade |
Extra High Strength Grade |
|
3/16 (4.76) |
7 |
1.57 |
109 |
----- |
5.115 |
8.452 |
12.677 |
17.748 |
|
7/32 (5.56) |
3 |
2.64 |
131 |
----- |
6.228 |
10.409 |
15.569 |
21.796 |
|
7/32 (5.56) |
7 |
1.83 |
146 |
------ |
6.850 |
11.387 |
17.126 |
24.020 |
|
1/4 (6.35) |
7 |
2.03 |
180 |
------ |
8.452 |
14.012 |
21.129 |
29.581 |
|
9/32 (7.14) |
7 |
2.36 |
244 |
20.462 |
11.432 |
18.905 |
28.469 |
39.812 |
|
5/16 (7.94) |
7 |
2.64 |
305 |
----- |
14.234 |
23.798 |
35.586 |
49.820 |
|
3/8 (9.52) |
7 |
3.05 |
407 |
51.155 |
18.905 |
30.915 |
48.040 |
68.503 |
|
7/16 (11.11) |
7 |
3.68 |
595 |
80.068 |
25.355 |
41.591 |
64.499 |
92.523 |
|
1/2 (12.70) |
7 |
4.19 |
770 |
111.206 |
32.917 |
53.823 |
83.627 |
119.657 |
|
1/2 (12.70) |
19 |
2.54 |
751 |
------ |
33.895 |
56.492 |
84.961 |
118.768 |
|
9/16 (14.29) |
19 |
2.87 |
949 |
------- |
42.881 |
71.616 |
107.202 |
149.905 |
|
5/8 (15.88) |
19 |
3.18 |
1186 |
------- |
48.930 |
80.513 |
124.995 |
178.819 |
|
3/4 (19.05) |
19 |
3.81 |
1155 |
------- |
71.172 |
116.643 |
181.487 |
259.331 |
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