Black Annealed Wire is made from low carbon steel wire after drawing and annealing. It is also called black iron wire, soft annealed wire, or annealed iron wire. The wire is softer than hard drawn wire, so it is easy to bend, twist, and cut during binding work. It is mainly used as tie wire and baling wire in construction, agriculture, packing, and daily fastening. We can supply black annealed wire in coils, spools, large coils, straight cut wire, and U type wire. Black oiled wire is also available when a light oil surface is required for storage and handling.
Specifications
Product Name: Black Annealed Wire, black iron wire, soft annealed wire
Material: Low carbon steel wire
Wire Type: Black annealed wire or black oiled wire
Surface: Black annealed surface, with or without light oil
Common Gauge: BWG8 to BWG22 for regular binding wire orders
Available Gauge: BWG5 to BWG38 can be checked according to order requirement
Diameter Reference: BWG22 approx. 0.71 mm; BWG20 approx. 0.89 mm; BWG18 approx. 1.24 mm; BWG16 approx. 1.65 mm; BWG14 approx. 2.10 mm; BWG12 approx. 2.77 mm; BWG10 approx. 3.40 mm; BWG8 approx. 4.19 mm
Form: Coil wire, spool wire, large coil wire, straight cut wire, or U type wire
Common Coil Weight: 5 kg, 10 kg, 20 kg, 25 kg, 40 kg, or 50 kg per coil
Large Coil Weight: 100 kg to 500 kg can be arranged by order
Packing: Plastic film inside, woven bag outside, carton, pallet, or packing by request
Use Note: Black annealed wire is not galvanized. It should be stored in a dry place. For long outdoor exposure, galvanized wire is usually more suitable.
Application
- Rebar tying and steel bar fixing in building construction.
- Hay baling, straw bundling, branch tying, and farm use.
- Packing, daily binding, park maintenance, and light fastening.
- Straight cut wire or U type wire for repeated tying work in workshops and job sites.



Stock Product Options
BWG18 Black Annealed Tie Wire, 25 kg Coil
BWG18 black annealed tie wire is a regular size for rebar tying and general binding work. It is soft enough for hand twisting and site use. The 25 kg coil is convenient for construction sites, hardware distributors, and daily stock supply.
Specifications:
Material: Low carbon steel wire
Gauge: BWG18
Approx. Diameter: 1.24 mm
Surface: Black annealed
Form: Coil wire
Packing: 25 kg/coil, wrapped with plastic film and woven bag
Use: Rebar tying, steel bar fixing, site binding, and general fastening.
BWG16 Black Oiled Wire, 20 kg Coil
BWG16 black oiled wire is used when a thicker binding wire is required. The light oil surface helps during storage and transport, but it is not a zinc coating. This size is used for construction binding, farm tying, and packing work.
Specifications:
Material: Low carbon steel wire
Gauge: BWG16
Approx. Diameter: 1.65 mm
Surface: Black oiled
Form: Coil wire
Packing: 20 kg/coil or by request
Use: Construction tying, agricultural bundling, branch tying, and packing.
Remark: Keep dry during storage.
BWG14 Soft Annealed Iron Wire, 50 kg Coil
BWG14 soft annealed iron wire is used for heavier binding work. It has a larger diameter than common rebar tie wire and is suitable for bundle tying, fence repair, and workshop use. The 50 kg coil is suitable for customers with regular consumption.
Specifications:
Material: Low carbon steel wire
Gauge: BWG14
Approx. Diameter: 2.10 mm
Surface: Black annealed
Form: Coil wire
Packing: 50 kg/coil
Use: Heavy binding, fencing work, material bundling, and workshop fastening.
BWG20 Black Annealed Spool Wire
BWG20 Black Annealed Wire on spool is used for light binding and small packing work. Spool packing keeps the wire tidy and easy to pull. This size is suitable for garden tying, handwork, light packaging, and daily fastening.
Specifications:
Material: Low carbon steel wire
Gauge: BWG20
Approx. Diameter: 0.89 mm
Surface: Black annealed
Form: Spool wire
Packing: Spool (commonly 0.5 kg to 5 kg per spool), then carton
Use: Light binding, garden tying, small packing, and daily use.
1.2 mm Straight Cut Black Annealed Wire
Straight cut black annealed wire is supplied in fixed lengths to save cutting time. It is used for factory tying, packing lines, rebar work, and repeated binding jobs. Diameter and cut length should be confirmed before production.
Specifications:
Material: Low carbon steel wire
Diameter: 1.2 mm
Surface: Black annealed
Form: Straight cut wire
Cut Length: According to order
Packing: Bundle, carton, or woven bag
Use: Factory tying, packing lines, rebar tying, and fixed-length binding.
BWG18 U Type Black Annealed Binding Wire
U type black annealed binding wire is pre-bent for quick tying. It is often used on construction sites and packing work where fixed-length wire is easier to handle. Length and bundle weight can be made according to order.
Specifications:
Material: Low carbon steel wire
Gauge: BWG18
Approx. Diameter: 1.24 mm
Surface: Black annealed or black oiled
Form: U type wire
Length: According to order
Packing: Bundle, bag, or carton
Use: Rebar tying, construction binding, packing, and fixed-size fastening.