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Surface Coating: Galvanizing
Features: Galfan wire offers high tensile strength, small tolerance, Shiny surface, good corrosion prevention
Application: Galfan wire is used for stranded conductors in overhead power circuitry
Application
zinc–5 % aluminummischmetal (Zn–5Al–MM) alloy-coated, steel core wire for use in Overhead Electrical Conductors. ACSS ACSS/TW The high temperature low sag solution. Zinc-5% Aluminum mischmetal alloy galvanized steel wire is used for Power Transmission and Distribution Line Hardware，Slope protection、Undersea optical cable armoured with low carbon galvanized steel wire，Overhead Electrical Conductors.
Construction
Galfan coated wire is covered with Zn-Al (Al 5%+Zn 95% or Al 10%+Zn 90%) alloy. Its corrosion resistance performance is about three times stronger than traditional galvanized wire. This is why it can be used to achieve a longer service life than the wires which are made of other materials. Through the replacement of traditional zinc coating with a thinner galfan wire coating, it offers improved weldability and formability properties.
Standards
ASTM B802 803 958
Class
Round, high strength, extra-high-strength, and ultra-high-strength, Class A B C coated
Features
operates continuously at high temperatures up to 250°C, with proper steel coating, ensuring maximum utilization and performance; standard coating for high temperature operation is a Zn-5% Al Mischmetal coating so that customers can take full advantage of the 250°C continuous operating temperature rating. Galvanized coatings are rated only 180°C for continuous operation.
ASTM B802-02-American Society for Testing and Materials
| Specified Diameter of Coated Wire,mm | Area Density of Coating, min, oz/ft2 of Uncoated Wire Surface | ||
| Class A | Class B | Class C | |
| 0.0500 to 0.0599, incl | 0.60 | 1.20 | 1.80 |
| 0.0600 to 0.0749, incl | 0.65 | 1.30 | 1.95 |
| 0.0750 to 0.0899, incl | 0.70 | 1.40 | 2.10 |
| 0.0900 to 0.1039, incl | 0.75 | 1.50 | 2.25 |
| 0.1040 to 0.1199, incl | 0.80 | 1.60 | 2.40 |
| 0.1200 to 0.1399, incl | 0.85 | 1.70 | 2.55 |
| 0.1400 to 0.1799, incl | 0.90 | 1.80 | 2.70 |
| 0.1800 to 0.1900, incl | 1.00 | 2.00 | 3.00 |
TABLE 5 Tensile Requirements
| Specified Diameter, in. | Stress at 1 % Extension, min, Ksi | Ultimate Tensile Strength, min, MPa | Elongation in 250 mm, min, % | ||||||
| Class A | Class B | Class C | Class A | Class B | Class C | Class A | Class B | Class C | |
| 1.60 to 2.30, incl | 190 | 180 | 170 | 210 | 200 | 190 | 3.0 | 3.0 | 3.0 |
| Over 2.30 to 3.05, incl | 185 | 175 | 165 | 205 | 195 | 185 | 3.5 | 3.0 | 3.0 |
| Over 3.05 to 3.60, incl | 180 | 170 | 160 | 205 | 195 | 185 | 4.0 | 3.0 | 3.0 |
| Over 3.60 to 4.80, incl | 170 | 160 | 155 | 200 | 185 | 180 | 4.0 | 4.0 | 4.0 |
ASTM B802-10 Zn-5Al-MM Alloy Coating (Metric)
| Specified Diameter of Coated Wire, mm | Area Density of Coating, min.g/m2 of Uncoated Wire Surface | |
| Class A | Class C | |
| 1.27 to 1.52, incl | 183 | 549 |
| 1.53 to 1.90, incl | 198 | 594 |
| 1.91 to 2.28, incl | 214 | 642 |
| 2.29 to 2.64, incl | 229 | 687 |
| 2.65 to 3.04, incl | 244 | 732 |
| 3.05 to 3.55, incl | 259 | 777 |
| 3.56 to 4.57, incl | 274 | 822 |
Normal Grade Tensile Requirements (Metric)
| Specified Diameter, mm | Stress at 1 % Extension, min, MPa | Ultimate Tensile Strength, min, MPa | Elongation in 250 mm, min, % | |||
| Class A | Class C | Class A | Class C | Class A | Class C | |
| 1.27 to 2.28, incl | 1310 | 1170 | 1450 | 1310 | 3.0 | 3.0 |
| 2.29 to 3.04, incl | 1280 | 1140 | 1410 | 1280 | 3.5 | 3.0 |
| 3.05 to 3.55, incl | 1240 | 1100 | 1410 | 1280 | 4.0 | 3.0 |
| 3.56 to 4.82, incl | 1170 | 1070 | 1380 | 1240 | 4.0 | 4.0 |
ASTM B803 Tensile Requirements
| Specified Diameter | Stress at 1 % Extension, min | Ultimate Tensile Strength, min | Elongation in 10 in. or 250 mm, | |||
| in. | mm | ksi | MPa | ksi | MPa | min % |
| 0.0500 to 0.0899, incl | 1.270 to 2.283, incl | 210 | 1450 | 235 | 1620 | 3.0 |
| 0.0900 to 0.1199, incl | 2.286 to 3.045, incl | 205 | 1410 | 230 | 1590 | 3.0 |
| 0.1200 to 0.1399, incl | 3.048 to 3.553, incl | 200 | 1380 | 225 | 1550 | 3.5 |
| 0.1400 to 0.1900, incl | 3.556 to 4.823, incl | 195 | 1340 | 220 | 1520 | 3.5 |
ASTM B958-Grade 4 Extra-High-Strength Tensile Requirements (Metric)
| Specified Diameter, mm | Stress at 1% Extension, | Ultimate Tensile Strength, | Elongation in 250 mm, min % |
| min, MPa | min, MPa | ||
| 1.27 to 2.28, incl | 1550 | 1825 | 3.0 |
| 2.29 to 3.04, incl | 1515 | 1790 | 3.0 |
| 3.05 to 3.55, incl | 1480 | 1760 | 3.5 |
| 3.56 to 4.82, incl | 1450 | 1725 | 3.5 |
Grade 5 Ultra-High-Strength Tensile Requirements (Metric)
| Specified Diameter, mm | Stress at 1% Extension, | Ultimate Tensile Strength, | Elongation in 250 mm, min % |
| min, MPa | min, MPa | ||
| 1.27 to 2.28, incl | 1580 | 1965 | 3.0 |
| 2.29 to 3.04, incl | 1550 | 1900 | 3.0 |
| 3.05 to 3.55, incl | 1515 | 1860 | 3.5 |
| 3.56 to 4.82, incl | 1480 | 1825 | 3.5 |
