Products Description
Our industrial-grade black annealed iron wire is specifically manufactured to meet the rigorous demands of commercial and industrial applications. Through controlled annealing processes and strict quality control, we deliver wire with exceptional consistency, reliability, and performance characteristics that outperform standard annealed wire.
Products Specifications
Material: Low Carbon Steel (Q195, SPCC, or equivalent)
Process: Drawn, then annealed in controlled atmosphere
Surface: Uniform black iron oxide (Fe₃O₄) layer
Standard Diameters: 0.8mm, 1.0mm, 1.2mm, 1.6mm, 2.0mm, 2.5mm, 3.0mm
Tensile Strength: 350-550 N/mm² (customizable)
Elongation: ≥12% (typically 15-22%)
Standard Coil Weights: 5kg, 10kg, 25kg, 50kg, 100kg
Products Applications
Automated Manufacturing & Packaging
High-Speed Binding Machines: Consistent surface prevents feeding issues and tension variations.
Robotic Assembly: Predictable handling characteristics for automated systems.
Precision Coiling: Uniform wire stacks evenly without surface-induced variations.
Construction & Concrete Work
Rebar Tying: Uniform oxide provides optimal concrete adhesion-critical for structural integrity.
Prestressed Concrete: Consistent surface properties prevent localized corrosion initiation.
Quality-Conscious Projects: Where specifications require documented surface consistency.
Specialty Applications
Artistic & Decorative Work: Visual consistency for exposed applications.
Electrical Components: Where surface uniformity affects subsequent processing.
Research & Testing: Repeatable material properties for experimental work.
Quality Assurance
Our Quality Process
Raw Material Inspection: Certified steel rod sourcing
In-process Control: Real-time diameter and temperature monitoring
Annealing Verification: Hardness and microstructure testing
Final Inspection: Visual, dimensional, and sample mechanical testing
Certifications & Documentation
Mill Test Certificates (MTC) available
ISO 9001 compliant manufacturing
Chemical and mechanical test reports
Third-party inspection welcome
FAQ
Q: What's the difference between black annealed and galvanized wire?
A: Black annealed has an oxide coating suitable for indoor/short-term outdoor use; galvanized has zinc coating for long-term corrosion resistance. Black annealed is more economical and bonds better with concrete.
Q: Can I use this wire outdoors?
A: For temporary outdoor use (30-60 days), yes. For permanent outdoor exposure or in corrosive environments, galvanized wire is recommended.
Q: What diameter should I choose?
A: Depends on your application:
Light duty (under 50kg): 0.8mm-1.2mm
Medium duty (50-200kg): 1.6mm-2.0mm
Heavy duty (200kg+): 2.0mm-3.0mm
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