black wire soft black annealing iron wire building binding wire annealing wire fire wire/black wire 黑铁丝 柔软黑退火铁丝 建筑绑扎丝退火丝 火烧丝 / black wire

Product Name<t_XXXXXXXXX> <t_XXXXXXXXX>8th–22nd, soft black annealing iron wire, construction binding wire

Brand<t_XXXXXXXXX> <t_XXXXXXXXX>Redron

Color<t_XXXXXXXXX> <t_XXXXXXXXX>Black

Material:High-quality low-carbon steel wire

Delivery Status:Two types: cold drawing and annealing.

Surface treatment technology:Annealing is a metal heat treatment process in which metal is heated to a certain temperature, held for sufficient time, and then cooled slowly in a furnace, buried in a furnace, or in a medium with poor thermal conductivity to achieve a stable structure close to equilibrium.

Purpose of annealing<t_XXXXXXXXX> <t_XXXXXXXXX>

(1) Reduce the hardness of steel and increase its plasticity to facilitate cutting and cold deformation processing.

(2) Eliminate residual internal stress in the steel to prevent deformation and cracking.

(3) Refine the crystal structure, achieve uniform steel composition and properties, and improve the steel’s performance or prepare it for future heat treatment processes.

Tensile Strength:(tensile strength)

The tensile strength of the smooth steel wire is390 MPa;

The tensile strength of galvanized steel wire is365 MPa;

Cold drawn steel wires are generally635-1000 MPa;

Formulation purpose540-1320 MPa; the larger the wire diameter, the lower the tensile strength.

The tensile strength of annealed steel wire is295–500 MPa

Wire diameter (size):4mm, 3.6mm, 3.0mm, 2.5mm, 2.0mm, 1.6mm, 1.2mm, 0.9mm, 0.8mm, 0.7mm

Model Number:8th, 9th, 10th, 12th, 14th, 16th, 18th, 20th, 21st, 22nd.

Weight per roll<t_XXXXXXXXX> <t_XXXXXXXXX>25kg and 50kg are standard roll weights; production can also be carried out according to requirements.

Packaging<t_XXXXXXXXX> <t_XXXXXXXXX>Internal molding, external weaving; cardboard boxes, pallets.

Packaging Specifications:2.5 kg per roll, five rolls per bundle; other packaging can be customized.

Purpose:Used in construction, mining, chemical industry, welding mesh, welding brackets, rework, etc. After annealing, iron wire becomes softer and more flexible, making it more effective for building binding wires and securing steel bars.

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