2.5mm Black Annealed Iron Wire

2.5mm Black Annealed Iron Wire is a versatile, general-purpose metal wire whose core advantages are its softness, ease of use, and economic value. It plays an irreplaceable role in construction tying, general fastening, and craft-making. Choose based on your environment and strength requirements.

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Product Introduction

Core Characteristics

Excellent Softness and High Ductility
Moderate Strength
Good Weldability
Low Cost
Fair Rust Resistance

Primary Uses

The 2.5mm diameter (approximately equivalent to American Wire Gauge 12#) offers a good balance of strength and flexibility, leading to extremely wide applications:

Construction and Building Materials (Most Common Use)

Rebar Tying: Used extensively to tie and secure steel rebar in reinforced concrete structures. It is a major consumable on construction sites. Its softness allows for quick and secure tying.

Scaffolding Fixing: For temporarily securing scaffold pipes or safety nets.

2. General Packaging, Bundling, and Securing

Heavy-Duty Packaging: Bundling cardboard boxes, wooden crates, metal parts, etc.

Warehouse Securing: Securing palletized goods in storage.

Agriculture and Gardening: Tying up vines (e.g., grapevines), tomato plants, building fences, and greenhouse frames.

3. Crafts and DIY Projects

Due to its excellent formability, it is commonly used for making wrought iron models, sculpture armatures, weaving baskets, home decor items, etc.

4. Industrial Applications

Used as raw material for parts like rivets, bolts, and pins.

Raw material for manufacturing wire mesh, fences, and grating.

Auxiliary binding and securing in machining (e.g., on lathes).

Comparison with Other Wires

Feature	Black Annealed Wire (2.5mm)	Galvanized Wire (2.5mm)	Spring Steel Wire (2.5mm)
Surface	Black oxide, matte	Silver zinc coating, bright or matte	Usually coated or black
Key Property	Soft, pliable	Good rust resistance, harder	High elasticity and hardness
Primary Use	Tying, securing, crafts	Outdoor tying, fencing, farming	Making springs, clips, elastic parts
Cost	Lowest	Moderate	Moderately High

Common Specifications and Packaging

Diameter: 2.5mm (often denoted as Φ2.5mm). Similar specifications like 2.6mm are also available.
Wire Gauge: Often corresponds to 12# (SWG) or 10# (BWG). Standards vary slightly, so specifying the millimeter diameter is most accurate when purchasing.
Tensile Strength: Typically in the range of 300-500 MPa (soft/annealed state).
Packaging: Usually sold in coils. Common coil weights include 5kg, 10kg, 25kg, and 50kg. It is also available in straight lengths.

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1.6mm Black Annealed Iron Wire

0.6mm Black Annealed Iron Wire