Black annealed iron wire is a type of baling wire that has undergone an annealing process, which involves heating the wire to a specific temperature and then cooling it slowly. This process improves the wire's ductility and flexibility, making the black annealed iron wire easier to bend without breaking. The black annealed iron wire has a dark, almost black appearance due to the heat treatment, and it is often used in applications where high tensile strength and durability are required, such as in binding, tying, and general construction.
Specification
| Product name | black annealed iron wire |
| Material | high quality iron wire(Q195/Q235) |
| Wire Types | black annealed wire,black annealed twisted wire(1*6/1*7) |
| Surface Treatment | plain oil painted (against rust and corrosion) |
| Forms Available | coil wire,U type wire,straight cut wire,etc |
Features:
Increased ductility: the annealing process enhances the ductility of the black annealed iron wire, making it more flexible and easier to work with. This is particularly useful in applications where the wire needs to be bent or shaped without breaking.
High tensile strength: Despite its increased flexibility, black annealed iron wire maintains high tensile strength, making it suitable for tasks that require robust binding or tying.
Corrosion resistance: The surface of the wire may develop a thin oxide layer during the annealing process, which can offer some protection against corrosion, although not as significantly as a galvanized coating.
Cost-effective: Compared to other types of wire with similar mechanical properties, such as stainless steel, black annealed iron wire is generally less expensive, making the black annealed iron wire a more budget-friendly option for many applications.
Packing:
1.Bind with wire.
2.plastic film inside and hessian cloth /woven bag outside.
3.Carton.
4.Other packing according customer`s requirement.
Size chart:
Wire Gauge | SWG(mm) | BWG in mm | 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 |
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