Premium Black Annealed Wire Wholesale
As a leading Chinese steel wire manufacturer, we supply high-grade Black Annealed Wire (also known as burnt wire or annealed iron wire) to global distributors, hardware wholesalers, and large-scale construction projects. The core secret behind our wire’s market dominance lies in our precise thermal treatment. By controling cooling cycles in state-of-the-art oxygen-free annealing furnaces, we alter the molecular structure of low carbon steel, optimizing it for extreme workability and durability.
Technical Specifications & Standard Parameters
| Wire Gauge (BWG) | Metric Diameter (mm) | Tensile Strength (N/mm²) | Elongation Rate (%) | Standard Packaging Options |
|---|---|---|---|---|
| BWG 6 – 12 | 5.0mm – 2.8mm | 350 – 450 | ≥ 15% | 100kg – 500kg / Big Coil |
| BWG 14 – 16 | 2.1mm – 1.6mm | 380 – 480 | ≥ 18% | 25kg, 50kg / Standard Coil |
| BWG 18 – 20 | 1.25mm – 0.89mm | 400 – 500 | ≥ 22% | 5kg – 25kg / Medium Coil |
| BWG 21 – 22 | 0.8mm – 0.7mm | 420 – 550 | ≥ 25% | 1kg, 2kg / Small Tie Coil |
Why Global B2B Importers Choose Our Black Iron Tie Wire
1. Unmatched Softness & Ductility: With an elongation rate running between 15% and 25%, handlers can smoothly tie knots manually or via automatic rebar tying tools without encountering premature breakage.
2. Even and Consistent Wire Gauge: Advanced cold drawing dies ensure that whether you order BWG16, BWG18, or custom diameters, the tolerance is strictly managed within ±0.02mm.
3. Marine-Grade Anti-Rust Oiling: Every single coil is coated with an eco-friendly anti-corrosion light oil layer, ensuring the binding wire arrives at your port shiny, clean, and completely rust-free even after 45 days at sea.
Versatile B2B Applications
Our soft black iron wire is specifically engineered to serve heavily demanded commercial fields:
- Construction Rebar Binding: Known as rebar tie wire, it quickly secures structural steel mesh setups. It wraps perfectly and cuts down manual labors fatigue drastically.
- Industrial & Agricultural Baling: Widely trusted by automated baling machines to compress scrap metal, recycling cardboards, paper, and haystocks securely.
- Wire Mesh Raw Material: Acts as an excellent baseline wire for weaving industrial wire cloth, gabion boxes, and welded hardware meshes.
Professional B2B Export Packaging & Logistics
We strictly prioritize heavy-duty industrial packing standards to minimize damage or product degradation during ocean transit, rail freight, and forklift handlings:
- Standard Protection Structure: Inner plastic wrapping layer to completely seal out ambient moisture + Outer thick premium PP woven wrap or traditional Hessian cloth layer to withstand harsh abrasive contacts.
- Palletized Solutions: Custom timber/wooden pallets or iron steel crates are available for rapid mechanical unloading at your warehouses.
- Optimized Container Load Capacity: Generally loaded up to 25 to 28 Metric Tons per 20ft General Cargo Container depending entirely on your local port regulations.
Frequently Asked Questions (FAQ)
Q1: What is the main difference between standard black iron wire and your black annealed wire?
Standard hard-drawn black iron wire is brittle and stiff due to intense cold-drawing stresses. Our black annealed wire passes through specialized heating and slow-cooling chambers which removes these stresses. This results in incredibly soft wire that possesses exceptional bending flexibility while retaining superb tensile integrity.
Q2: How long can the wire remain rust-free without opening the package?
Thanks to our precise anti-rust oiling formulation combined with airtight dual-layer plastic and woven packaging, our wire can remain pristine in indoor storage conditions for up to 6 to 12 months, fully secured against tropical humidity or standard damp weather.
Q3: What is your Minimum Order Quantity (MOQ) for direct factory export?
Our standard direct factory MOQ is 5 to 10 Metric Tons per single size parameter. However, to accommodate newly established distribution partners, we also accept mixed-specification container loads where multiple wire gauges (e.g. BWG16 and BWG18) can be shipped inside a single 20GP container.
Q4: Can we request custom coil weights such as 1.42kg or 500kg industrial carriers?
Yes, absolutely. Our high-precision coiling lines can wind wire exactly to your destination market preferences. We handle anything from 1kg retail packs for hardware stores up to 500kg pattern-laid carrier coils tailored for heavy industrial baling machineries.
Get Factory-Direct Wholesale Price & Free Samples
Are you searching for a stable, high-capacity Chinese manufacturer to optimize your black annealed wire procurement costs? Partner with us to enjoy premium quality compliant with ASTM A853/BS 1052 standards and seamless global supply chain service.
- Flexible Tiered Pricing: Massive discounts and competitive FOB/CIF/CFR quotes for full container loads (20GP).
- 100% Free Samples: Quality testing samples available for your local engineering or distribution verification.
- Guaranteed Fast Lead Time: Steady raw material (Q195/Q235) supply chains ensure prompt manufacturing and on-time shipment.
- Customized Packaging: Heavy-duty marine-grade dual packing (plastic inside + woven/hessian outside) to prevent any transit rust.
