Import Black Annealed Wire — Buy in wholesale FOB from Supplier in China

Black annealed wire from Shijiazhuang Yajia Da Metal Products Co., Ltd. is a low-carbon steel wire that has undergone annealing heat treatment to achieve exceptional ductility and a dark oxide surface finish. The supplier lists wire gauges from BWG4 to BWG25, with diameters spanning 6 mm down to 0.5 mm, making this one of the more versatile diameter ranges offered from Hebei Province manufacturers. Tensile strength is cited as a key performance characteristic, though buyers should request the exact N/mm² or MPa values for their gauge specification before finalising an order.

The annealing process involves heating the drawn wire to above its recrystallisation temperature in a controlled atmosphere, then slow cooling to relieve internal stresses and soften the steel for cold working. This produces the characteristic black scale (Fe₃O₄) that provides moderate atmospheric corrosion protection without additional coating. Standard material for this grade is Q195 or Q235 low-carbon steel wire rod (typical carbon content 0.06-0.10% for Q195), though the supplier does not specify the exact grade used. The wire is typically supplied in coils or cut-to-length bundles, with common coil weights of 25 kg, 50 kg, or 100 kg depending on customer requirements.

Primary applications include construction binding wire for rebar tying, agricultural fencing and vineyard trellising, packaging and baling, and general fabrication where ease of bending and knotting is valued over maximum tensile strength. Buyers are typically construction material distributors, agricultural suppliers, wire product manufacturers, and recycling operations. For trade terms, Incoterms and confirmed lead times should be discussed directly with Shijiazhuang Yajia Da Metal Products Co., Ltd., as these are not stated in the listing. The supplier's location in Shenze County, Hebei Province, places it within China's largest concentration of wire-drawing and metal product manufacturing, with Tianjin Port as the most common export gateway.

Shijiazhuang Yajia Da Metal Products Co., Ltd. is based in Shenze County, Shijiazhuang, Hebei Province, a region that accounts for a substantial share of China's wire product manufacturing output. The supplier is classified at the 'harbor' trust tier, and its response rate is recorded as 0.00% with zero hours average response time, which indicates either a new listing, dormant account, or data collection issue that buyers should note when evaluating communication reliability. No verified certifications, production capacity figures, or years in operation are provided in the source profile, so claims of ISO or SGS certification mentioned in the platform-generated description should be treated as unconfirmed and requested directly from the company.

The listing positions this manufacturer as a source of black annealed wire for construction, agriculture, and manufacturing applications, with emphasis on gauge flexibility and tensile strength performance. What the profile does not state is equally material: there is no disclosed employee count, no factory floor or equipment description, no export licence verification, and no named client references. Buyers should conduct standard due diligence on business licence registration, export rights, and request recent mill test certificates before committing to volume orders. The Hebei origin is genuine and relevant, as the province's wire-drawing clusters offer competitive pricing but also variable quality control standards.