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Black annealed wire, which is made of low carbon steel or iron, is often applied for weaving, baling in home use and construction. For example, baling hay in agriculture area. Black annealed wire is mainly processed into coil wire, spool wire or big package wire. Or further straightened and cut into cut wire and U type wire. Compared with black iron wire, black annealed wire is more softer and has higher flexibility.
Black Annealed Iron Wire Production Process:
The Q195 wire rod drawing model into the black iron wire, through 1000° high temperature firing, black iron wire after annealing treatment, soft wire, can increase the wire tensile degrees.
Black Annealed Iron Wire Specification:
Material | Low carbon steel Q195 |
Diameter | 0.4mm-5.0mm |
Tensile Strength | 30kg-70kg/mm2 |
Elongation Rate | 10-25% |
Weight/Coil | 0.1kg-1000kg/coil |
Packing |
Inside plastic outside hessian or woven bag, according customer ask. |
Black Annealed Iron Wire Size:
Wire Gauge | SWG in mm | BWG in mm | in Metric System mm |
8# | 4.06 | 4.19 | 4 |
9# | 3.66 | 3.76 | - |
10# | 3.25 | 3.4 | 3.5 |
11# | 2.95 | 3.05 | 3 |
12# | 2.64 | 2.77 | 2.8 |
13# | 2.34 | 2.41 | 2.5 |
14# | 2.03 | 2.11 | - |
15# | 1.83 | 1.83 | 1.8 |
16# | 1.63 | 1.65 | 1.65 |
17# | 1.42 | 1.47 | 1.4 |
18# | 1.22 | 1.25 | 1.2 |
19# | 1.02 | 1.07 | 1 |
20# | 0.91 | 0.89 | 0.9 |
21# | 0.81 | 0.813 | 0.8 |
22# | 0.71 | 0.711 | 0.7 |
23# | 0.61 | 0.635 | 0.707 |
24# | 0.559 | 0.559 | 0.629 |