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 !
BWG18 Black Annealed Wire
Basic size: BWG18, nominal diameter 1.24 mm
1. Materials
- Raw material: Q195 low‑carbon steel wire rod (SAE 1006‑1008)
- Production process: Wire drawing → pickling & rust removal → oxygen‑free high‑temperature annealing → cooling
- Chemical composition: Low carbon content, low impurity, suitable for softening treatment.
- HS code: 72171000 (China)
2. Features
- Soft & high ductility after annealing, easy to bend and twist, not easy to break during hand‑tying
- Tensile strength: 350‑550 MPa; Elongation: 10%‑25%
- Matte black‑blue oxidized surface, no galvanized layer. Slight surface oil for temporary anti‑rust effect
- Uniform wire‑diameter tolerance, consistent softness coil‑to‑coil.
- Cost‑effective binding material; not for long‑term outdoor exposed use (no anti‑corrosion coating).
3. Export Packing (sea‑worthy)
Two main export packing styles:
1. Small coil (popular for Latin‑America market e.g. Brazil, Chile)
- 1 kg / small coil; 20‑25 coils per carton (20‑25 kg/carton)
- Inner: plastic moisture‑proof bag; Outer: export carton; desiccant inside for container sea shipment
- Carton marking: print specification, weight, quantity, origin, customer label (customizable).
2. Big industrial coil
- 25 kg / 50 kg / 100 kg per coil
- Inner: PE plastic film; Outer: hessian cloth / woven polypropylene bag.
- Load on wooden pallets, strapped firmly for container transport.
- Container loading: approx 26‑28 MT per 20GP
Note: Black annealed wire is sensitive to moisture; moisture‑proof packing is critical for long ocean transit.
4. Applications
1. Construction: Mainly as binding tie wire for reinforcing steel bars, tying bricks, pipes and building materials
2. Wire mesh weaving: making welded mesh, woven wire mesh
3. Handicraft & gardening: wreath making, plant‑stem tying, garden trellis fixing
4. General packing & baling: bundling goods, agricultural bale tying
5. Further re‑processing: raw material for making cut wire, U‑type wire, twisted double tie‑wire
Post time: Sep-04-2026