Black annealed wire

Black annealed wire from No.9 Wire Mesh Factory is a cold-drawn steel wire that undergoes a controlled heating and slow-cooling process to improve ductility and reduce brittleness. The wire is supplied in diameters ranging from 0.5 mm to 4.0 mm, with a tensile strength between 350 MPa and 550 MPa, as confirmed by the supplier's material test reports. Its surface is coated with a thin layer of iron oxide, giving it a matte black finish that resists flaking during bending.

The base material is low-carbon steel, typically conforming to ASTM A82 or EN 10270-1 standards for annealed wire. The annealing process results in a microstructure that enhances workability without compromising core strength, making it suitable for repeated bending and twisting. Unlike galvanized or PVC-coated alternatives, this wire has no protective layer beyond the oxide skin, which allows for better adhesion in concrete applications but requires protection in high-moisture environments.

This wire is commonly used for binding rebar in construction, securing fencing panels, and forming wire mesh for agricultural enclosures. Buyers include civil contractors, fencing manufacturers, and rural infrastructure suppliers in Southeast Asia and the Middle East. Packaging is in 25 kg coils wrapped in plastic and stacked on wooden pallets. Trade terms are typically FOB Xingang, with lead times of 15 to 20 days after order confirmation. MOQ is 1 ton per size, and payment is by T/T or L/C.

No.9 Wire Mesh Factory is located in Anping County, Hebei Province, a known hub for wire mesh and wire products in China. The supplier is classified as an imported-tier vendor with harbor-level trust verification, indicating verified export history and documentation compliance. The listing confirms active export operations but provides no details on factory size, workforce, or years in business.

The supplier specializes in producing wire mesh, fencing products, and related wire forms. It does not claim ISO certification, laboratory testing, or in-house R&D. All product claims are based on standard manufacturing practices in the region. No client names, project references, or quality control reports are disclosed in the listing.