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Black wire, also known as black annealed wire, is a widely used carbon steel wire product with a dark, oxide surface. It is widely applied in construction, handicrafts, packaging, agriculture, and hardware due to its good flexibility, toughness, and low cost.

Material & Production

Black wire is mainly made of low-carbon steel wire rod through drawing, annealing, and surface oxidation treatment. The annealing process gives it softness and ductility, making it easy to bend, tie, and process without easy breakage.

Key Features

• Strong flexibility: Soft and easy to operate

• High tensile strength: Suitable for daily binding and fixing

• Cost-effective: Lower price than galvanized wire and stainless steel wire

• Widely compatible: Can be further processed into mesh, nails, and other products

Main Applications

1. Construction: Tying steel bars, fixing templates, and bundling materials

2. Packaging: Binding cartons, pipes, and industrial products

3. Agriculture: Making plant supports, fences, and animal cages

4. Handicrafts & daily use: Wire crafts, gardening, and daily binding

5. Hardware processing: Raw material for welded wire mesh, wire nails, and staples

Specification Range

Common specifications of black wire usually include:

• Diameter: 0.3 mm – 5.0 mm

• Tensile strength: 350 – 550 MPa

• Packing: Rolls, spools, or cartons according to customer requirements

Market Advantage

Black wire remains one of the most demanded metal products in the global market because of its stable performance, easy availability, and wide usability. It is especially popular in construction, hardware, and export industries.