China black annealed soft wire manufacturer for more than 20 years, Monthly output 2000tons. Wire diameter from 0.8mm to 5.0mm . Packing 25kg per coil or customized. OEM accepted. If you need a reliable China partiner ,Hebei Five-Star Metal will be your first choice !
BWG19 Black Annealed Wire
Basic size: BWG19, nominal diameter 1.07 mm
HS Code: 72171000
1. Materials
- Raw material: Q195 low‑carbon steel wire rod (SAE 1006‑1008)
- Production flow: Wire drawing → pickling & descaling → oxygen‑free high‑temperature annealing → cooling → light anti‑rust oiling → coiling
- Low carbon content, limited impurities, optimized for soft annealing treatment.
2. Features
- Very soft, excellent ductility, easy to bend and twist, ideal for manual tying work.
- Tensile strength: 350‑520 MPa; Elongation: 12%‑25%
- Matte dark‑blue oxidized surface, no galvanized protective layer. Thin surface oil for temporary rust resistance.
- Stable diameter tolerance, consistent softness coil‑by‑coil.
- Cost‑effective binding material. Not suitable for long‑term outdoor exposed service, prone to rust in humid environment.
3. Export Packing (sea‑worthy for ocean shipment)
Option A: Small coil (popular for Latin‑America market: Brazil, Chile, Peru etc.)
- 1 kg / 2 kg / 5 kg per small coil; 20‑25 kg per export carton
- Inner: moisture‑proof PE plastic bag + desiccant; Outer: strong corrugated export carton
- Carton marking: print gauge, diameter, net weight, gross weight, quantity, country of origin, customer label available.
Option B: Big industrial coil
- 25 kg / 50 kg / 100 kg per coil
- Inner: PE plastic film; Outer: hessian cloth or woven PP bag
- Load on wooden pallets, firmly strapped for container transport.
- Container loading capacity: 26‑28 MT per 20GP container
- Important reminder: Black annealed wire is moisture‑sensitive; moisture‑proof packing is essential for long sea transit.
4. Applications
1. Construction: Rebar binding tie wire, tying bricks, pipes and building components. BWG19 is a thinner‑gauge tying wire for light‑duty binding work.
2. Wire product processing: raw material for welded mesh, woven wire mesh, U‑type wire, cut straight wire, double twisted tie wire.
3. Handicraft & gardening: wreath making, plant stem tying, garden trellis fixing.
4. General bundling: packing & baling for agricultural goods and general cargo.
5. Further re‑processing: raw material for secondary wire‑product manufacturing.
Post time: Sep-04-2026