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Low Friction(LF) Wire
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Specification
| Item | Unit | 1.20mm | 0.90mm | 0.50mm | 0.40mm |
| Nominal Diameter | mm | 1.2 | 0.9 | 0.5 | 0.4 |
| Tolerance in Diameter | mm | ±0.03 | ±0.03 | ±0.02 | ±0.02 |
| Tensile Strength | N/㎟ | 1420~1670 | min. 1520 | min. 1960 | min. 1960 |
| Twist | Turms/100D | min. 20 | min. 20 | min. 20 | min. 20 |
| Zinc Coating | g/㎡ | min. 80 | min. 80 | min. 20 | min. 20 |
| Young's modulus | Gpa | min 186kN/㎟ | min 186kN/㎟ | min 186kN/㎟ | min 186kN/㎟ |
| Elongation | % | min. 4.0% | min. 4.0% | min. 2.0% | min. 2.0% |
| Elastic range | % | min. 0.6% | min. 0.6% | min. 0.6% | min. 0.6% |
| Yield Strength Rate | % | min. 90.0% (Yield point/Breaking Load) |
min. 90.0% (Yield point/Breaking Load) |
min. 90.0% (Yield point/Breaking Load) |
min. 90.0% (Yield point/Breaking Load) |
| Allowed twist | Turms/5M | min. 1 | min. 1 | min. 1 | min. 1 |
| Straightness (H) |
mm/1M | min. 50 | min. 50 | min. 50 | min. 50 |
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LF Wire Process and Characteristic(Compare with Galv. Steel wire)
| Items | Low Friction Wire(LF Wire) | Galv. Steel Wire | ||||||
| Process |  |
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| Material | Drawing | Heating | Cooling | Winding | Material | Drawing | Winding | |
| Available size | 0.40~2.60mm | 0.40~2.60mm | ||||||
| Tensile Strength | min. 150kg/mm² | min. 150kg/mm² | ||||||
| Young's modulus | min. 14,000kgf/mm² | max. 12,500kgf/mm² | ||||||
| Yield strength Rate | 92~96% | 80~88% | ||||||
| Elongation(%) | min. 4% | 1.5 ~2.5% | ||||||
| Allowed twist | 1Turms/10M | 2Turms/5M | ||||||
| Straightness (H) |
Average. 20mm/M | Average. 200mm/M | ||||||
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| Characteristic (H) |
- Production cost is higher than Galva. steel wire. - It has high straightness and non-Rotating characteristics from special heat treatment and cooling process. - Very thin coating(EEA coating) on wire is available because of its excellent surface. - Very easy to cut and process because of its good straightness. |
- Production cost is low. - Sensitive from exterior impact because of low young's mudulus and yield strength rate. - It makes final products(for example : optical fiber cable) difficult for maintaining straightness and non-Rotating. - Easy to be mutated by high load because of low young's mudulus and elongation. |
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Test Result
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| [ Galv. Steel Wire Graph ] | [ LF Wire Graph ] |
| Data (Unit) |
Size (mm) |
Area (mm²) |
Yield Load (kgf) |
Yield Strength (kgf/mm²) |
Max Load (kgf) |
Max.Strength (kgf/mm²) |
Br Exp Ratio (%) |
P.1 (kgf) |
| LF Wire | 1.18 | 1.094 | 168.3 | 153.839 | 178.5 | 163.163 | 6.27 | 154.4 |
| Glav. Wire | 1.18 | 1.094 | 151.9 | 138.848 | 169.9 | 155.302 | 4.22 | 147.2 |
※ Gauge Length : 200.00mm, Test Speed : 20.00mm/min
Product Pictures
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| [ Straightness ] | [ Winding ] |
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| [ Final products ] | [ Packing ] |
Application Field
- Optical drop cable- Brush wire
- Brassiere wire
- Various different purposes required for good straightness, non-rotating and high yield point.