Galvanized Steel Core Wire is used for Bare ACSR Conductor ,also named High Tensile Galvanized steel wire,can be supplied in single wire or stranded wires. The common structure is 1x7, 1x19 and 1x37.
Product Description
Product Description
Galvanized Steel Core Wire is used for Bare ACSR Conductor, also named High Tensile Galvanized steel wire, can be supplied in single wire or stranded wires. The common structure is 1x7, 1x19 and 1x37.
Physical Properties of Galvanized Steel Core Wire as per ASTM B 498
| Wire Diamater (mm) | Diamater Tolerance (mm) | Weight of Zinc-coating (g/m2) | Stress at 1% Extension, Min (Mpa) | Tensile StrengthMin.(Mpa) | Elongation in 250mm, Min (%) |
| 1.57-1.90 | +0.04, -0.03 | 210 | 1310 | 1450 | 3.0 |
| Over 1.9-2.3 | +0.04, -0.03 | 220 | 1310 | 1450 | 3.0 |
| Over 2.3-2.7 | +0.05, -0.05 | 230 | 1280 | 1410 | 3.5 |
| Over 2.7-3.1 | +0.05, -0.05 | 240 | 1280 | 1410 | 3.5 |
| Over3.1-3.5 | +0.08, -0.05 | 260 | 1240 | 1410 | 4.0 |
| Over 3.5-3.9 | +0.08, -0.05 | 270 | 1240 | 1410 | 4.0 |
| Over 3.9-4.5 | +0.1, -0.08 | 275 | 1170 | 1380 | 4.0 |
| Over 4.5-4.8 | +0.1, -0.08 | 300 | 1170 | 1380 | 4.0 |
| Table 1. Initial Settings for Determining Stress 1% Extension | ||||||||||||||||
| Nominal Wire Diameter | Initial Stress | Initial setting of extensometer for a gauge length of 250mm2 | ||||||||||||||
| mm | N/mm2 | |||||||||||||||
| 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 | Class A | Class B | Class C | Class D | Class E | |||||||||||
| mm | 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 | ||||||
| Over | Up to and incl. | |||||||||||||||
| 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 | |||||
| Table 3. Mechanical Properties of ST1A Wires | |||||||
| Nominal wire diameter | Diameter tolerance | Stress at 1% extension | Tensile strength | Elongation on 250mm | Mandrel diameter for wrapping test | No. of torsion twists | |
| mm | mm | Mpa (N / mm2) | Mpa (N/mm2) | - | - | - | |
| over | Up to and incl. | ||||||
| 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 |
Tags
