Barbed wire, consisting of a strand of two wires, is made by a fully automated machine; it is commonly known as
barb wire, barbed wire tape, barbed wire obstacle;
Twist types: common twist, reverse twist
Classified by materials: galvanized barbed wire(normal zinc coated
and heavily zinc coated), PVC coated barbed wire(blue, green,
yellow and other colors are available), stainless steel barbed
wire, aluminum barbed wire;
Barbed wire applications: for grass boundary, railway, highway,
industrial and agriculture enclosure, animal husbandry, forestry
protection, border posts, prison protection.
ASTM A 121 Standard Sizes and Constructions for Barbed Wire,
Metallic Coating Type Z and Type ZA
|Design Number||Size, Steel|
|Nominal Diameter of Coated Wire, in.(mm)||Number of Barb|
|Spacing of Barbs,|
|Diameter of Barbs,|
Steel Wire Gauge
|12-2-4-12F||121⁄2||0.099 (2.51)||2||4 (102)||121⁄2||Flat|
|12-2-4-13F||121⁄2||0.099 (2.51)||2||4 (102)||13||Flat|
|12-2-4-14R||121⁄2||0.099 (2.51)||2||4 (102)||14||Round|
|12-2-5-12F||121⁄2||0.099 (2.51)||2||5 (127)||121⁄2||Flat|
|12-2-5-14R||121⁄2||0.099 (2.51)||2||5 (127)||14||Round|
|12-4-5-14H||121⁄2||0.099 (2.51)||4||5 (127)||14||Half-round|
|12-4-5-14R||121⁄2||0.099 (2.51)||4||5 (127)||14||Round|
|13-2-4-14R||131⁄2||0.086 (2.18)||2||4 (102)||14||Round|
|13-4-5-14R||131⁄2||0.086 (2.18)||4||5 (127)||14||Round|
|15-2-5-13F||151⁄2||0.067 (1.70)||2||5 (127)||131⁄2||Flat|
|15-2-5-14R||151⁄2||0.067 (1.70)||2||5 (127)||14||Round|
|15-4-5-16R||151⁄2||0.067 (1.70)||4||5 (127)||161⁄2||Round|
A. The nominal diameter of the wire used in making the barbs shall
be as follows:
121⁄2 gage 0.099 in. (2.51 mm)
13 gage 0.092 in. (2.32 mm)
133⁄4 gage 0.083 in. (2.11 mm)
14 gage 0.080 in. (2.03 mm)
161⁄2 gage 0.058 in. (1.47 mm)
B. Design Number 12–4–3–12R, Metallic Coated Type A, is
High-Security Grade. All other design numbers are for standard
C. The gage of the half-round and flat barbs is designated by the
gage of the round wire from which the barbs are rolled.
Minimum Weight of Coating on Type Z Barbed Wire
of Type Z
|Minimum Weight of Coating of Uncoated Wire|
|in.||(mm)||Class 1||Class 3|
|121⁄2||0.099||(2.51)||0.28 (85)||0.80 (245)|
|13||0.092||(2.32)||0.28 (85)||0.75 (230)|
|131⁄2||0.086||(2.18)||0.25 (75)||0.70 (215)|
|14||0.08||(2.03)||0.25 (75)||0.70 (215)|
A. These sizes with "x"only furnished with Class 3 Coating.
Strand and Barb in B.W.G.
|Approximate Length per Kilo in Meter|
|Barbs Spacing 3"||Barbs Spacing 4"||Barbs Spacing 5"|
|12 × 12||6.0617||6.7590||7.2700||7.6376|
|12 × 14||7.3335||7.9051||8.3015||8.5741|
|12-1/2 × 12-1/2||6.9223||7.7190||8.3022||8.7221|
|12-1/2 × 14||8.1096||8.814||9.2242||9.5620|
|13 × 13||7.9808||8.899||9.5721||10.0553|
|13 × 14||8.8448||9.6899||10.2923||10.7146|
|13-1/2 × 14||9.6079||10.6134||11.4705||11.8553|
|14 × 14||10.4569||11.6590||12.5423||13.1752|
|14-1/2 × 14-1/2||11.9875||13.3671||14.3781||15.1034|
|15 × 15||13.8927||15.4942||16.6666||17.5070|
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