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
Specification
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
|
MORE
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
|
MORE
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
|
