Description
Our galvanized stranded wires provide a combination of superior properties compared to conventional six strand ropes. With compacted structure and smooth face, this 1*7 galvanized stranded wire provides enhanced durability and resistance to abrasion and crushing, and improves the service life.
Construction & Diameter: 1*7/4.8-12.7 mm
Features
1. The galvanized stranded wire offers a smooth and polished surface.
2. It offers excellent antirust performance.
3. It is adhesive and flexible.
Application
Our 1*7 galvanized stranded wire can be used as messenger wires, guy wires, core wires or strength members, earth wires/ground wires, barrier cables, structure cables, messenger wires for optical fiber cable, etc.
As a professional 1*7 galvanized stranded wire manufacturer and supplier based in China, We also offers1*3, 1*19 galvanized stranded wire, 12.70mm PC strand, 2.0mm and 2.64mm galvanized steel wire, among others.
EN 50189 Standard
| Table 1. Initial Settings for Determining Stress 1% Extension | |||
| Nominal Wire Diameter, mm | Initial Stress, N/mm2 | Initial setting of extensometer for a gauge length of 250mm2 | |
| 1.24 | 2.25 | 100 | 0.125 |
| 2.25 | 3 | 200 | 0.25 |
| 3 | 4.75 | 300 | 0.375 |
| 4.75 | 5.5 | 400 | 0.5 |
| For other gauge lengths, multiply the initial setting by the gauge length in mm divided by 250. | |||
| Table 2. Zinc Coating Requirements | |||||||||||
| Nominal Wire Diameter, mm | Class A | Class B | Class C | Class D | Class E | ||||||
| Over | Up to and incl. | Min. mass of Zn g/m2 | Min. no. of one minute dips | Min. mass of Zn g/m2 | Min. no. of one minute dips | Min. mass of Zn g/m2 | Min. no. of one minute dips | Min. mass of Zn g/m2 | Min. no. of one minute dips | Min. mass of Zn g/m2 | Min. no. of one minute dips |
| 1.24 | 1.5 | 185 | 2 | 370 | 3.5 | 150 | 1 | 365 | 3 | 185 | 2 |
| 1.5 | 1.75 | 200 | 2 | 400 | 3.5 | 160 | 1.5 | 460 | 3.5 | 200 | 2 |
| 1.75 | 2 | 215 | 2.5 | 430 | 4 | 175 | 2 | 550 | 4 | 215 | 2.5 |
| 2 | 2.25 | 215 | 2.5 | 430 | 4 | 175 | 2 | 550 | 4 | 250 | 3.5 |
| 2.25 | 2.75 | 230 | 3 | 460 | 4 | 190 | 2.5 | 640 | 5 | 250 | 3.5 |
| 2.75 | 3 | 230 | 3 | 460 | 4 | 190 | 2.5 | 640 | 5 | 250 | 3.5 |
| 3 | 3.5 | 245 | 3.5 | 490 | 4 | 205 | 3 | 730 | 6 | 250 | 3.5 |
| 3.5 | 4.25 | 260 | 3.5 | 520 | 4 | 260 | 3.5 | 730 | 6 | 260 | 3.5 |
| 4.25 | 4.75 | 275 | 4 | 550 | 4 | 275 | 4 | 775 | 6 | 275 | 4 |
| 4.75 | 5 | 200 | 4 | 580 | 5 | 290 | 4 | 825 | 6 | 290 | 4 |
| 5 | 5.25 | 290 | 4 | 580 | 5 | 290 | 4 | 825 | 6 | 290 | 4 |
| 5.25 | 5.5 | 290 | 4 | 580 | 5 | 290 | 4 | 825 | 6 | 290 | 4 |
| Table 3. Mechanical Properties of ST1A Wires | |||||||
| Nominal wire diameter mm | Diameter tolerance | Stress at 1% extension, MPa | Tensile strength, MPa | Elongation on 250mm | Mandrel diameter for wrapping test | No. of torsion twists | |
| Over | Up to and incl. | mm | N/MM2 | N/MM2 | % | ||
| Min. | Min. | Min. | xd | Min. | |||
| 1.24 | 1.5 | ±0.03 | 1170 | 1400 | 3 | 1 | 18 |
| 1.5 | 1.75 | ±0.03 | 1170 | 1400 | 3 | 1 | 18 |
| 1.75 | 2.25 | ±0.03 | 1170 | 1400 | 3 | 1 | 18 |
| 2.25 | 2.75 | ±0.04 | 1140 | 1350 | 3 | 1 | 16 |
| 2.75 | 3 | ±0.05 | 1140 | 1350 | 3.5 | 1 | 16 |
| 3 | 3.5 | ±0.05 | 1100 | 1300 | 3.5 | 1 | 14 |
| 3.5 | 4.25 | ±0.06 | 1100 | 1300 | 4 | 1 | 12 |
| 4.25 | 4.75 | ±0.06 | 1100 | 1300 | 4 | 1 | 12 |
| 4.75 | 5.5 | ±0.07 | 1100 | 1300 | 4 | 1 | 12 |
| Table 4. Mechanical properties of ST2B Wires | ||||||
| Nominal wire diameter mm | Diameter tolerance | Stress at 1% extension, MPa | Tensile strength, MPa | Elongation on 250mm | Mandrel diameter for wrapping test | |
| Over | Up to and incl. | mm | N/MM2 | N/MM2 | ||
| 1.24 | 1.5 | ±0.05 | 1100 | 1300 | 4 | 1 |
| 1.5 | 1.75 | ±0.05 | 1100 | 1300 | 4 | 1 |
| 1.75 | 2.25 | ±0.05 | 1100 | 1300 | 4 | 1 |
| 2.25 | 2.75 | ±0.06 | 1070 | 1250 | 4 | 1 |
| 2.75 | 3 | ±0.06 | 1070 | 1250 | 4 | 1 |
| 3 | 3.5 | ±0.07 | 1000 | 1200 | 4 | 1 |
| 3.5 | 4.25 | ±0.09 | 1000 | 1200 | 4 | 1 |
| 4.25 | 4.75 | ±0.10 | 1000 | 1200 | 4 | 1 |
| 4.75 | 5.5 | ±0.11 | 1000 | 1200 | 4 | 1 |
Other Products
BS4565-1990 Standard
| Table 1. Initial Settings for Determining Stress 1% Extension | |||
| Nominal Diameter of Galvanized Steel Wire | Initial Stress N/mm2 | Initial Setting of Extensometer mm/mm | |
| > | < | ||
| mm | mm | ||
| 1.18 | 2.24 | 95 | 0.05 |
| 2.24 | 3.15 | 190 | 0.10 |
| 3.15 | 5.00 | 285 | 0.15 |
| Table 2. Tensile Strength and Stress at 1% Elongation | |||
| Nominal Diameter of Galvanized Steel Wire | Tensile Strength minimum N/mm2 | Stress at 1% elongation minimum N/mm2 | |
| > | < | ||
| mm | mm | ||
| 1.18 | 2.24 | 1400 | 1180 |
| 2.24 | 3.15 | 1320 | 1140 |
| 3.15 | 5.00 | 1320 | 1100 |
| Table 3. Properties for High Strength Galvanized Steel Wire for ACSR | ||||||||||
| Tensile strength grade N/mm2, min. | 1550 | 1700 | 1800 | |||||||
| Nominal diameter of galvanized wire | Min. stress at 1% elongation | Min. elongation L0+=200mm% | Steel wrap test dia. | Min. stress at 1% elongation | Min. elongation L0+=200mm% | Steel Wrap test dia. | Min. stress at 1% elongation | Min. elongation L0+=200mm% | Steel wrap test dia. | |
| > | ≤ | |||||||||
| mm | mm | |||||||||
| 1.18 | 1.32 | 1260 | 3.0 | 1d | 1320 | 3.0 | 2d | 1370 | 3.0 | 3d |
| 1.32 | 1.80 | 1260 | 3.5 | 1d | 1320 | 3.0 | 2d | 1370 | 3.0 | 3d |
| 1.80 | 2.24 | 1260 | 3.5 | 2d | 1320 | 3.0 | 2d | 1370 | 3.0 | 3d |
| 2.24 | 2.72 | 1260 | 3.5 | 2d | 1320 | 3.5 | 3d | 1370 | 3.0 | 3d |
| 2.72 | 2.90 | 1260 | 3.5 | 2d | 1320 | 3.5 | 3d | 1370 | 3.0 | 3d |
| 2.90 | 4.00 | 1220 | 4.0 | 3d | 1280 | 3.5 | 3d | - | - | - |
| 4.00 | 5.00 | 1220 | 4.0 | 3d | - | - | - | - | - | - |
| d=Nominal diameter of galvanized wire | ||||||||||
| L0= Original Gauge Length | ||||||||||
| Table 4. Conversions of Tensile Strength and Stress at 1% Elongation | |
| N/MM2 | tonf/in2 |
| 1100 | 71.2 |
| 1140 | 73.8 |
| 1180 | 76.4 |
| 1220 | 79.0 |
| 1260 | 81.6 |
| 1280 | 82.9 |
| 1320 | 85.5 |
| 1370 | 88.7 |
| 1400 | 9.07 |
| 1550 | 100.4 |
| 1700 | 110.1 |
| 1800 | 116.6 |
ASTMB498B/498M-2002 Standard
| Table 1. Zinc Coating | |||
| Specified Diameter of Coated Wre | Class A | Class C | |
| 1.6-1.9 | 210 | 630 | |
| >1.9-2.3 | 220 | 440 | 660 |
| >2.3-2.7 | 230 | 460 | 690 |
| >2.7-3.1 | 240 | 480 | 720 |
| >3.1-3.5 | 260 | 520 | 780 |
| >3.5-3.9 | 270 | 540 | 810 |
| >3.9-4.5 | 275 | 550 | 825 |
| >4.5-4.8 | 300 | 600 | 900 |
| Table 2. Tensile Requirements | |||||||||
| Specified Diameter | Stress at 1 % Extension min Mpa | Ultimate Tensile Strength min MPA | Elongation in 250mm, min, 1% | ||||||
| Class A | Class B | Class C | Class A | Class B | Class C | Class A | Class B | Class C | |
| 1.6-2.3 | 1310 | 1240 | 1170 | 1450 | 1380 | 1310 | 3 | 3 | 3 |
| >2.3-3.05 | 1280 | 1210 | 1140 | 1410 | 1340 | 1280 | 3.5 | 3 | 3 |
| >3.05-3.6 | 1240 | 1170 | 1100 | 1410 | 1340 | 1280 | 4 | 3 | 3 |
| >3.6-4.8 | 1170 | 1100 | 1070 | 1380 | 1280 | 1240 | 4 | 4 | 4 |
| Table 3. Initial Settings for Determining Stress 1% Extension | ||
| Specified Diameter, mm | Initial Stress, MPA | Initial Setting of Extensometer, mm/mm |
| 1.6-2.3 | 100 | 0.0005(0.05% extension) |
| >2.3-3.05 | 190 | 0.0010(0.10% extension) |
| >3.05-4.8 | 290 | 0.0015(0.15% extension) |
| Table 4. Mandrel Size for Adherence Test | |
| Specified Wire Diameter,mm | Ratio of Mandrel Diameter to Wire Diameter |
| 1.6-2.3 | 3 |
| >2.3-3.05 | 4 |
| >3.05-4.8 | 5 |
| Table 5. Permissible Variations in Diameter of Zinc-Coated Steel Wire | ||
| Specified Diameter, mm | Permissible Variation, mm | |
| Plus | Minus | |
| 1.6-2.3 | 0.04 | 0.03 |
| >2.3-3.05 | 0.05 | 0.05 |
| >3.05-3.6 | 0.08 | 0.05 |
| >3.6-4.8 | 0.1 | 0.08 |
Other Products
ASTM A475 Standard
| Dia. of strand, in(mm) | Minimum Breaking Strength of Strand,1bf(kN) | Weight of Zine Coating, g/m2 | |
| High Strength Grade | Extra High Strength Grade | CLASS A | |
| 3/16(4.76) | 2850(12.677) | 3990(17.748) | 153 |
| 1/4(6.35) | 2850(21.129) | 6650(29.581) | 183 |
| 5/16(7.94) | 8000(35.586) | 11200(49.820) | 244 |
| 3/8(9.52) | 10800(48.040) | 15400(68.503) | 259 |
| 7/16(11.11) | 14500(64.499) | 20800(92.523) | 275 |
| 1/2(12.70) | 18800(83.627) | 26900(119.657) | 275 |
ASTM B498 Standard
| Dia of Wire, mm | Tensile Strength, Mpa | Stress at 1% Extension, Mpa | Coating, g/m2 | |
| CLASS A | CLASS B | |||
| 0.80-1.57 | 1000-1550 | / | 50-153 | / |
| 1.57-1.90 | 1000-1550 | / | 153-210 | / |
| 1.90-2.30 | 1000-1550 | 1310 | 220 | 440 |
| 2.30-2.70 | 1000-1550 | 1280 | 230 | 460 |
| 2.70-3.10 | 1000-1550 | 1280 | 240 | 480 |
| 3.10-3.50 | 1000-1550 | 1240 | 260 | 520 |
| 3.50-3.90 | 1000-1550 | 1170 | 270 | 540 |
| 3.90-4.50 | 1000-1550 | 1170 | 275 | 550 |
| 4.50-4.80 | 1000-1550 | 1170 | 300 | |
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