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Armouring and Conductor Wire

Armouring Wire

Armouring Wire is a soft, heavy-zinc-coated wire used in the power, terrestrial and marine communications industry for binding electrical cables that are used in places where the cable may be subjected to crushing or other injury.

Liberty OneSteel manufactures a range of high and low carbon galvanised Armouring Wire. Low carbon armouring wires are produced to meet the requirements of Australian Standard AS 3863 Galvanised Mild Steel for Armouring Cables and can be made to other international standards on request. High carbon armouring wires can also be produced to customer requirements on request.

Armouring wire is available in diameters ranging from 0.9mm to 4.0mm and is available in either coils or stems.

Armouring Wire Specifications

Diameter Tolerances

Nominal Wire Diameter Tolerance (mm)
over 0.80mm up to and incl. 1.60mm +/-0.05
over 1.60mm up to and incl. 2.50mm +/-0.07
over 2.50mm up to and incl. 4.00mm +/-0.08
over 4.00mm up to and incl. 5.00mm +/-0.10

Galvanised Coating Weight – AS3863

Wire Diameter Minimum Ctg Mass (g/m2)
0.90mm 150
1.25mm 200
1.60mm 230
2.00mm 240
2.50mm 260
3.15mm 275
4.00mm 290

Tensile Strength (MPa)

The tensile strength is defined as the maximum load achieved in the tensile test, divided by the cross-sectional area of the wire test piece. The tensile strength range for Armouring Wire is 340 to 500 MPa.

Element %
Carbon 0.05 max
Phosphorus 0.03 max
Manganese 0.50 max
Silicon 0.12/0.18
Sulphur 0.30 max

Conductor Wire

Conductor Wire is a wire specifically designed to meet the severe conditions encountered in overhead power transmission. Conductor Wire can be used as a single or multi-strand wire and is produced to meet the requirements of Australian Standard AS 1222.1 – Steel Conductors and Stays – Bare Overhead, Pt 1 – Galvanised and other related standards.

Conductor wire is available in sizes ranging from 1.75mm to 3.80mm. 

Conductor Wire Specifications (AS1222 Part 1)

Diameter Tolerances

Nominal Diameter Mean Diameter Maximum Ovality %
less than or equal to 2.85mm + 3, -2 5
over 2.85mm +/-2 4

Galvanised Coating Weight  

Nominal Diameter Minimum Ctg Mass (g/m2)
1.75mm 200
2.36mm 230
2.50mm 230
2.75mm 240
3.00mm 240
3.66mm 260
3.75mm 260
3.81mm 260

Tensile Strength (MPa)

The minimum tensile strength for all sizes of Conductor Wire is 1310 MPa.

Steel Chemistry

Liberty OneSteel uses a variety of steel grades to achieve the tensile specifications for Conductor Wire. Carbon content is varied to achieve the desired result.

Element %
Carbon 0.45/0.77
Phosphorus 0.03 max
Manganese 0.60/0.80
Silicon 0.15/0.35
Sulphur 0.03 max