Black Annealed Wire

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Process
Metal stock such as ingots, slabs, blooms, and billets are hot rolled into 6.5mm diameter coiled steel. Then the steel is drawn through the die to obtain wires of different diameters. This process is called drawing whereby the wire diameter is reduced. After that, hot wire will be cooled slowly to anneal. Finally, paint and coating are applied to the wire surface to yield desired specifications of the output product, which is known as the black annealed wire. Main components of the wire product include iron, cobalt, nickel, copper, carbon, zinc, and various other elements.

Features
Black annealed wire is soft, ductile, and uniform in softness and chromaticity relative to ordinary black wires.

Applications
Typical applications include the construction, mining, chemical, wire mesh welding, hanger welding, and reprocessing industries. Iron wire is softened after annealing, with increased ductility. It can be used to bale the reinforcing steel.

Specifications

Wire Gauge	Standard Wire Gauge (mm)	Birmingham Wire Gauge (mm)	Metric System (mm)
8#	4.06	4.19	4.00
9#	3.66	3.76	-
10#	3.25	3.40	3.50
11#	2.95	3.05	3.00
12#	2.64	2.77	2.80
13#	2.34	2.41	2.50
14#	2.03	2.11	-
15#	1.83	1.83	1.80
16#	1.63	1.65	1.65
17#	1.42	1.47	1.40
18#	1.22	1.25	1.20
19#	1.02	1.07	1.00
20#	0.91	0.89	0.90
21#	0.81	0.813	0.80
22#	0.71	0.711	0.70
23# to 34# wire is also available for galvanized iron wire.

Related Names
High Flexibility Wire | Metal Woven Wire | Binding Wire

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