Cold drawn mild steel wire, drawn down from our own rod and coil stock across the full commercial range: 7.01 mm at 2 SWG through to 0.56 mm at 24 SWG. Drawing is done in successive passes rather than one, which is what holds the diameter along the length of the coil instead of only at the ends.

Three tempers come off the same line. Hard drawn wire keeps the strength the drawing puts into it and goes to welded mesh, nails, fasteners and light springs. Annealed wire is softened afterwards — this is the black binding wire that ties reinforcement on site, soft enough to twist by hand and hold. Galvanized wire is drawn then zinc coated, for fencing, tying and anything that lives outdoors.

The gauge decides the job. The heavy end, 2 to 8 SWG, is drawn for mesh, fencing and wire rope core; the middle, 10 to 16 SWG, for nails, fasteners and light mesh; the fine end, 18 to 24 SWG, for binding, tying and stitching wire. Every gauge in between is drawn — the table below lists all twenty-three.

Wire is ordered by gauge but made to a diameter, so the millimetre governs and the gauge is the shorthand. Coils are supplied to weight, and the running weight in the table converts between the two: at 18 SWG a kilogram is 109 metres, at 2 SWG it is barely three.

Applications

  • Binding wire for reinforcement
  • Welded mesh and wire fencing
  • Nail and fastener manufacture
  • Chain link and chicken mesh
  • Light springs and clips
  • Wire rope core
  • Baling, tying and stitching wire
  • General fabrication

Sectors supplied

  • Construction
  • Fastener manufacture
  • Mesh and fencing
  • Agriculture
  • Packaging
  • Fabrication

Specifications

Sizes and weights

Figures as published in our catalogue. Tolerances are held to the standard named on each table.

Cold drawn wire — gauge, diameter and running weight

ASTM A510/A510M, ISO 16120, BS 1052

Cold drawn wire — gauge, diameter and running weight — ASTM A510/A510M, ISO 16120, BS 1052
Gauge SWG Diameter mm Running weight
kg per 100 m m per kg
2 7.01 30.30 3.3
3 6.40 25.26 4.0
4 5.89 21.41 4.7
6 4.88 14.66 6.8
8 4.06 10.18 9.8
10 3.25 6.52 15.3
12 2.64 4.30 23.2
14 2.03 2.55 39.3
16 1.63 1.63 61.3
18 1.22 0.92 109.2
20 0.91 0.52 194.2
22 0.71 0.31 320.8
24 0.56 0.19 519.1

Gauge numbers are Standard Wire Gauge and are trade shorthand, not a tolerance — order on the millimetre. Running weights are nominal, calculated at 7.85 g/cm³; the coil is supplied to weight, so length per coil follows from the gauge.

Gallery

Cold Drawn Wire in production

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