Huanghua Jinhe Hardware Products Co., Ltd. is one of the most professional manufacturers and suppliers of black annealed binding wire in China, also supports customized service. Welcome to buy cheap black annealed binding wire made in China here and get free sample from our factory. Quality products and low price are available.
Product Overview
Black Annealed Binding Wire is a soft, flexible low-carbon steel wire produced via controlled thermal annealing. Designed for structural tie applications, it provides high ductility and knotting reliability without snapping under tension.
Our in-house drawing and annealing lines process 5,000 metric tons monthly, maintaining strict carbon content control (0.08% - 0.13%) to ensure consistent tensile performance across every coil. Manufactured under an ISO 9001-certified quality management system, every production batch is backed by verifiable factory inspection standards.
Specifications
|
Technical Parameter |
Standard Value / Range |
Testing Method |
|
Wire Gauge (BWG) |
BWG 8 to BWG 25 (0.5mm - 4.0mm) |
Laser micrometer measurement |
|
Tensile Strength |
350 - 550 MPa (Soft annealed condition) |
ASTM E8 tension testing |
|
Elongation Rate |
>= 15% |
Tensile elongation meter |
|
Raw Material |
Q195 / Q235 / SAE 1008 wire rod |
Mill test certificate (MTC) verification |
|
Surface Treatment |
Light oil-coated (Anti-rust protection) |
Visual & weight check |
Available Options
Coil Types
U-type wire, loop tie wire, cut straight wire, small coil (spool), and large industrial coils (50kg - 800kg).
Inner Diameters
Standard IDs customizable for automatic tying machines or manual handling.
Packaging Customization
Plastic film inner with Hessian cloth or woven bag outer protection for ocean freight.
Applications
Reinforcement Tying
Securing steel rebar intersections in foundations, bridges, and high-rise concrete structures.
Precast Industry
Fastening reinforcing mesh in precast concrete panels.
Baling & Recycling
Compressing and tying corrugated cardboard, waste paper, and light scrap metals.
Packaging & Logistics
Coil Weight: Standard export coils of 25kg, 50kg, or heavy-duty bundle coils up to 500kg.
Protection Layers: Wrapped with moisture-resistant PE plastic film, followed by heavy-duty hessian cloth or woven PP fabric to withstand sea transport humidity.
Loading Capacity: 20ft container loads approximately 25 - 27 metric tons, secured with dunnage bags to prevent shifting.
Quality Control & Manufacturing
Annealed Uniformity: Continuous-temperature gas-fired annealing furnaces eliminate hard spots, ensuring uniform softness from the outer to the inner layers of the coil.
Tolerance Control: Laser micrometer monitoring during wire drawing ensures diameter variations remain within +/-0.02mm.
Third-Party Inspection: We regularly support on-site inspections by SGS, BV, or TÜV prior to final container stuffing to ensure strict contract compliance.
MOQ & Lead Time
5 Metric Tons per size (Trial orders of 1x20'GP container accepted for mixed sizes).
12 - 18 days for standard production runs.
FOB, CFR, CIF. Port of Loading: Tianjin / Qingdao Port.
FAQ
Q: What is the purpose of the oil coating on the wire?
A: A thin layer of light industrial oil is applied post-annealing to prevent surface oxidation during ocean transit and storage. Dry or extra-oiled options are available upon request.
Q: Can you provide Mill Test Certificates (MTC)?
A: Yes. Every shipment includes an MTC detailing chemical composition, tensile strength, and actual gauge measurements.
Q: How do you prevent coil tangling during uncoiling?
A: Our heavy coils use mechanical winding patterns that allow smooth, knot-free pulling for both manual operators and automatic tying rigs
Request a Quote
To receive a formal quotation within 12 hours, please specify the following parameters in your inquiry:
Wire gauge (BWG or mm)
Coil weight or packaging type
Total order volume (Metric Tons)
Destination port
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