Cold Drawn Wire
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Your Leading Cold Drawn Wire Supplier
High Quality
The production process of nails is mature, the quality is stable and reliable, and the service life is long.
Rich Experience
With more than 20 years of experience, we specialize in the production of various specifications of threaded, ring-shaped and polished coil nails, and produce various conventional nails and non-standard nails.
Advanced Equipment
We have a mature production line. The machines include nail coiling machine, nail making machine, polishing machine, thread rolling machine
Quality Control
To ensure that our products and services meet our customers' expectations, we are proficient in production processes and strictly control quality.
What is Cold Drawn Steel Wire?
Cold drawing process can be applied to low and high carbon steels. According to the desired wire diameter in the cold drawing process, rolling series are determined by special calculations according to the customer's strength requirements and cold wire drawing process is carried out at appropriate speeds. Cold drawn steel is processed at room temperature. In the cold drawing process, a significantly improved surface quality is obtained compared to hot rolling. The hardness, yield and tensile strength of the material increases. While hardness increases, ductility decreases. The desired hardness can be obtained on the surface without heat treatment
Precision: This process can work within closer size and roundness tolerances than other methods. Where hot-formed steel products will warp during cooling, cold-finished steel maintains its precise shape. We can create sharp corner radii down to 0.127 millimeters or 0.005 inches, as well as complex symmetrical and asymmetrical profiles.
Performance: Cold-drawn steel has enhanced mechanical properties. This transformation process has a positive effect on tensile and yield strength and reduces ductility, which make better performance possible. After undergoing this process, steel is stronger and harder.
Surface finish: A smoother surface finish can be used for various applications and eliminates additional machining operations and costs.
Machinability: Cold-finishing enhances machinability, especially with low-carbon steel, and lengthens tool life.
Several capabilities: Bekaert has single-die, multi-die and turks head capabilities under one roof.
Cost savings: Cold-finishing is more cost-effective than machining the part yourself.
Less waste: Cold-drawing produces minimal scrap, eliminating the waste of purchased steel stock.
What Are the Three Primary Types of Steel Wire?
Bright Basic
Bright basic wire has a shiny, polished appearance (hence the name). It’s formed from low-carbon steel and has a good combination of tensile strength, formability, and weldability. As with all low-carbon steel, it will corrode quickly. The surface lubricant, used to aid the drawing process, holds corrosion at bay temporarily and is readily removed for processes like painting or powder coating.
Cold Heading
Cold heading is a type of cold forming process that’s used to produce a wide range of smaller metal parts with excellent strength and good ductility and weldability (depending on the amount of carbon in the steel).
Cold heading wire is made with a specialty machine that performs extrusion and/or upsetting operations on steel blanks. The blanks are cut from a wire coil and placed within the machine’s tooling. Then, the machine performs the needed operation (extrusion lengthens and thins the blanks while upsetting makes them shorter and wider).
Galvanized
A limitation of using low-carbon steel (such as with bright basic wire) is its susceptibility to corrosion. One way of addressing this is through galvanizing.
In the galvanizing process, the carbon steel wire is cleaned and immersed in molten zinc. The zinc reacts with the iron to form a zinc-iron compound on the surface that prevents the iron from corroding. The limitation of this process is that, if welding is needed, the zinc coating must be removed from the specific spot that needs to be welded, leaving the area around the weld unprotected from corrosion
Material of Cold Drawn Wire
Low carbon steel
Cold drawn steel wire is often made from low carbon steel that has been rolled and then re-processed.
High carbon steel
Music wire is a type of cold drawn high carbon spring steel that is known for its strength and ability to withstand high stress.
Stainless steel
Cold drawn stainless steel wire can be used for general purposes or for springs.
What are the Applications of Cold Drawn Wire
Automotive: Used in the production of small parts like steering shafts, brake springs, exhaust clamps, and wheel spokes
Agriculture: Used in the production of power springs, cables, wedge wires, structural components, fasteners, hand tools, auger wires, and rake teeth
Construction: Used in the production of nails, wire mesh, gratings, shelving, and tilt rods for window blinds
Industrial: Used in the production of shafts, pins, gears, cams, and rollers
Medical: Used in the production of surgical instruments, needles, and implants
Aerospace: Used in the production of landing gear components, engine parts, and control systems
Process of Cold Drawn Wire
Start with hot-rolled steel: Begin with hot-rolled steel stock in wire form at room temperature.
Remove surface imperfections: Remove the iron oxide layer on the surface to improve dimensional control.
Lubricate: Lubricate the steel wire.
Pass through die: Use a powered capstan to draw the wire through a carbide die or turks head.
Repeat: Repeat the process to reduce the diameter even further.
Wind: Wind the cold-drawn wire to the desired packaging requirements.
Components of Cold Drawn Wire
Hot-rolled steel stock
The starting material for cold-drawn wire is room temperature hot-rolled steel in wire form.
Drawing lubricant
The surface of the steel wire is coated with a lubricant to aid in the cold drawing process.
Carbide die or turks head
The steel wire is drawn through a carbide die or turks head to reduce its diameter and elongate it.
Gripping device
The pointed end of the steel wire is passed through the die and gripped by the drawing machine.
Drawing machine
The drawing machine pulls the remaining unreduced section of the steel wire through the die.
To maintain cold drawn wire, keep it clean, dry, and store it in a controlled environment to prevent rust and damage, including avoiding abrasive materials, regularly inspecting for surface defects, and applying a protective coating when necessary; depending on the application, consider using a lubricant or anti-corrosion treatment to maintain its properties and prevent wear and tear.
Key points to remember:
Cleaning:
Regularly wipe down the wire with a soft cloth to remove dirt and debris.
Use mild cleaning solutions if needed, depending on the material of the wire.
Avoid harsh abrasives like steel wool which can scratch the surface.
Storage:
Store the wire in a dry, cool area with low humidity to prevent rust.
Use protective packaging or wrapping to minimize contact with other materials.
Consider using a desiccant to absorb moisture in storage areas.
Protective Coatings:
Apply a light layer of anti-rust oil or a suitable protective coating depending on the environment and application.
For specific materials like stainless steel, consider specialized cleaning and maintenance procedures.
Inspection:
Regularly inspect the wire for signs of damage, including scratches, corrosion, or fraying.
Replace damaged wire as needed to maintain quality and safety.
Important factors to consider based on the wire type and application:
Lubrication:
In some cases, applying a lubricant during use can reduce friction and wear on the wire, especially when working with high-speed machinery.
Heat Treatment:
Depending on the material and desired properties, heat treatment might be necessary to maintain or adjust the wire's characteristics.
Coating for specific applications:
Some applications might require specialized coatings like zinc plating for increased corrosion resistance.
Factory Equipment
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FAQS
Q: What is the difference between cold drawn and hot drawn wire?
A: Hot drawn wire is pulled through a die at a high temperature, making it more malleable but with lower tensile strength and a rougher surface finish compared to cold drawn wire.
Q: How can you tell if a wire is cold drawn?
A: A smooth, bright surface finish is a good indicator of cold drawn wire.
Q: What are the limitations of cold drawn wire?
A: Cold drawing can make the wire more brittle depending on the material and drawing process, limiting its formability in certain applications.
Q: What is annealing in relation to cold drawn wire?
A: Annealing is a heat treatment process sometimes applied after cold drawing to reduce internal stresses and improve ductility. What Sizes
Q: Does Cold Drawn Steel Come In？
A: Cold drawn steel can come in a variety of shapes and sizes, but it is commonly manufactured as bar or wire. The diameter of steel bars varies, and shapes of the bars are often determined by how you look at them straight on, which may include flat, square, round and hex bar shape. Steel wire is often manufactured to the customer’s specifications, and may come in different types of finishes
Q: .What is ColdDrawn Steel Used For?
A: The automotive industry demands a large amount of cold drawn steel products, including vehicle axles, spokes, and wheel spindles. Cold drawn steel is used to make fasteners, hand tools, cables, bolts and paper clips.
We're well-known as one of the leading cold drawn wire manufacturers and suppliers in China. We warmly welcome you to buy high quality cold drawn wire for sale here from our factory. For more information, contact us now.
Non standard Smooth Coil Nails, Round Head Nails, 3 Inch Galvanized Coil Nails