Black Iron Wire – The Most Economical Wire Material of Mesh or Fence

Black Iron Wire, also known as oil painted black iron wire or black mild steel wire, is a kind of iron wire without any processing. Compared with annealed wire, it is more economical to form coil wire, tie wire, or cut into straight wire. Black iron wire gauge is mainly from 8 G to 38 G (wire diameter from 0.15 mm to 4.5 mm). Another size can accepted as customers' requirements. Black iron wire is the commonly used material in production of woven wire mesh, welded wire mesh and binding wire.

Specification:

• Wire material: carbon steel wire.
• Processing: oxygen free annealed process.
• Color: plain black.
• Treatment: plain oil painted.
• Forms available: coil wire, spooled wire, big package wire, U type wire, cut wire.
• Sizes: 8 gauge – 38 gauge (0.15 mm – 4.5 mm).

Table 1: Black Iron Wire Gauge Chart

Wire Gauge	SWG mm	BWG mm	In Metric System mm
8 G	4.06	4.19	4.00
9 G	3.66	3.76	-
10 G	3.25	3.40	3.50
11 G	2.95	3.05	3.00
12 G	2.64	2.77	2.80
13 G	2.34	2.41	2.50
14 G	2.03	2.11	-
15 G	1.83	1.83	1.80
16 G	1.63	1.65	1.65
17 G	1.42	1.47	1.40
18 G	1.22	1.25	1.20
19 G	1.02	1.07	1.00
20 G	0.91	0.89	0.90
21 G	0.81	0.813	0.80
22 G	0.71	0.711	0.70

• Types: hard drawn wire and soft annealed wire.
  • Hard drawn wire:
    • The suitable material of iron nail, wire mesh, craftwork, etc.
    • Wire gauge: 8 G – 23 G.
    • Wire diameter: 4 mm – 0.8 mm.
    • Tensile strength: 500–980 N/mm².
    • Normal coil weight: 25 kg, 50 kg, 100 kg and 200 kg.
    • Packing: inside films and outside PVC woven cloth or hessian cloth wrapped; put on wooden pallet.
  • Soft annealed wire:
    • Types: black soft annealed wire, bright soft annealed wire.
    • Diameter: 16 G, 18 G, 19 G, 20 G and 22 G are the most popular sizes.
    • Packing: in coil, by spool, or can be cut into sizes for binding/bundle.

Character:

• Anti-corrosion and anti-oxidization.
• Cost-saving.
• Excellent flexibility and softness.
• Durable and long service life.

Application:

• As tie wire in daily life binding.
• Baling wire in building fixing and reinforcement.
• Material of fences and meshes.
• Binding wire for tying flowers.
• Binding wire for tying landscapes in garden.
• Made into handicrafts.