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Steel Wire for Manufacturing: High-Tensile & Coated Wire from 0.5mm to 6mm | Sinsun
Sinsun supplies cold-drawn steel wire with tensile strength from 350-750 MPa, hot-dip galvanized (60-120 g/m²). Used for wire mesh weaving, fencing, springs, and construction binding. Request specs for your manufacturing process.
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Getting materials and controlling metallurgy
Our steel billets come from ISO 9001-certified mills. If you want to choose a steel that has the right strength and corrosion resistance for your application, you can choose medium or high carbon steels (SAE 1045-1075) or alloy steels (such as 304/316 stainless steel. Mill Test Certificates (MTCs) show what chemicals are in each batch before it is worked on.
The Person You Can Trust: This gets rid of the variability in raw materials, which is a major reason why wires fail during forming or while in use. We fix the problem of wires not working right from unknown sources.
Cold Drawing with Precision
As the wire goes through the tungsten carbide dies, they get smaller and smaller. This cold working process can make the surface smoother and the tensile strength stronger by up to 40%. For example, high-carbon steel grades have a wide range of MPas. Our method of preventing microcracks involves carefully controlling the speed and level of lubrication during the drawing process.
The Gain in Your Performance: This makes sure that the mechanical properties are predictable and the diameter is the same (±0.02mm tolerance). It fixes problems with high-speed spring coiling or mesh weaving machines that cause them to break, which lowers your machine's downtime and scrap rate.
Advanced coatings and protection against corrosion
We use a hot dip method in our hot-dip galvanizing process. This means that wire that has been drawn is put into a bath of molten zinc that is about 450°C. This creates a layer of zinc-iron alloy that is held together by metal, with a layer of pure zinc on top. We promise that the zinc coating will be at least 60 to 120 g/m² (depending on the wire gauge). This is a lot more than what basic electroplated coatings offer.
304 and 316 grades are bright annealed after drawing in a furnace with a controlled atmosphere. This important step breaks up the carbides that formed during drawing and puts the passive chromium oxide layer back on without adding any scaling to the surface.
Your Problem Solved: Ordinary zinc coatings chip and rust quickly. The service life of our method can be extended by 5-7 times with normal temperatures. In this way, your long-term replacement and maintenance costs will be substantially reduced.
Rigorous In-Process & Final Testing
Quality is verified at multiple stages. We perform:
Tensile & Torsion Testing: On every production batch to verify strength and ductility.
Coating Adherence Tests:For galvanized wire (e.g., wrapping test per ASTM A853).
Salt Spray Testing: Testing samples regularly to predict and validate corrosion performance.
Dimensional Checks: Diameter consistency is ensured by laser micrometers.
Reduced Risk: A product that performs exactly as specified comes from this comprehensive quality control protocol. This overcomes the costly burdens of project delays, rework, or liability incurred by substandard materials.
Do you feel confident about specifying?
For a wire specification that doesn't require any compromises, ask for our detailed technical data sheets or send us your application needs.
Our process is always reliable, whether you want to know how cold-drawn wire will behave, save money in the long run with hot-dip galvanizing, or make sure that stainless steel won't rust.
Our technical advantage is not limited to one part of the chain; we control the entire process from the chemistry to the finished spool.
Conclusion
Designed to meet your most important needs
Versatile Steel Wire for FastenersDescription
Precision-drawn steel wire with smooth surface and strong load-bearing capacity. Suitable for tying screws, nails, and metal parts—reliable for both professional construction and household repairs.insun’s galvanized steel wire boasts superior corrosion resistance and tensile strength.
| Steel Wire Product Specification Table | ||||
| Product Name | Size Range (Diameter) | Material / Coating | Key Parameters / Strength | Primary Applications |
| GI (Galvanized Iron) Wire | 0.8 mm – 4.0 mm | Low-Carbon Steel, Hot-Dip Galvanized | Tensile: 350-550 MPa | General binding, fencing, vineyard trellising, construction bracing, packaging. |
| Zinc Coating: 60-80 g/m² | ||||
| Black Annealed Wire | 0.5 mm – 4.0 mm | Low-Carbon Steel, Annealed (Soft) | Tensile: 350-500 MPa | Rebar tying, general crafting, wire meshing, where flexibility and rust are not primary concerns. |
| High Carbon Spring Wire | 0.15 mm – 6.0 mm | High-Carbon Steel (e.g., SAE 1075) | Tensile: 1750-2200 MPa | Automotive valve springs, suspension springs, high-stress mechanical components. |
| Stainless Steel Wire | 0.10 mm – 8.0 mm | AISI 304, 316, 430 | Tensile: 500-1000 MPa (varies by grade & temp) | Springs in corrosive environments, chemical filters, marine cables, food processing screens. |
| Flux-Cored Welding Wire | 0.8 mm – 2.4 mm | Mild Steel, Flux & Metal Powder Core | Yield Strength: ≥ 460 MPa (E71T-1) | Structural steel fabrication, shipbuilding, heavy equipment repair (for MIG/MAG welding). |
| PC (Pre-Stressed Concrete) Wire | 3.0 mm – 7.0 mm | High-Carbon Steel, Induction Tempered | Tensile: 1570-1860 MPa | Pre-stressed concrete elements (hollow-core slabs, railway sleepers, piles). |
| Electro-Galvanized Wire | 0.5 mm – 2.0 mm | Low-Carbon Steel, Electroplated Zinc | Tensile: 350-550 MPa | Indoor applications, general tying, mesh for light protection, where minimal corrosion is needed. |
| Zinc Coating: 10-20 g/m² | ||||
| Copper-Coated Steel Wire | 0.5 mm – 2.2 mm | Low-Carbon Steel, Electroplated Copper | Tensile: 350-550 MPa | Substrate for bead wire (tire cord), electrical grounding conductors, welding wire base. |
| Conductivity: Enhances electrical contact | ||||
| Cold Heading Quality (CHQ) Wire | 2.0 mm – 12.0 mm | Low/Medium Carbon Steel, Spheroidize Annealed | Excellent ductility, controlled scaling | Manufacturing of bolts, nails, rivets, and other fasteners via cold forging. |
| Barbed Wire Strand | 1.5 mm – 2.5 mm (Line Wire) | Galvanized or PVC-Coated Steel | High ductility for twist | Agricultural and security fencing (as the central strand for barbs). |
Notes:
Tolerances: For fine wire, the standard diameter tolerance is usually ±0.02mm, and for heavier gauges, it is usually ±0.05mm.
Packaging: You can get it in spools, coils, or straight lengths, and you can even have it made to order.
Customization: The alloy's composition, tensile strength, coating type and weight, and packaging can all be changed to fit the needs of a specific project.
How to Use This Chart:
Find out what your application is (for example, fencing, making springs, or strengthening concrete).
Look over the suggested Product Name and its Key Parameters.
Choose the right size and material/coating for your needs.
Please let us know the name and size of the product so we can send you a technical datasheet and a quote.
0102030405
Q: What sets Sinsun's basic steel wire apart from other "materials wire" on the market?
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A: Sinsun's steel and wire products begin with very strict control over the chemistry of the raw materials. Our goal is to make sure that the tensile strength is the same for all grades (350-1850 MPa) and that the diameter tolerances are exact (usually within ±0.05mm). There is no risk of it changing when it comes to weaving, forming, or drawing with it. The difference between it and regular wire lies in this feature.
Q: What are the normal ways to package your thin and thick metal wire?
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A: When you buy a lot of steel and wire, it usually comes in coils (25 kg to 500 kg), spools, or payoff packs. It is wound tightly on spools to keep thin metal wire (less than 1 mm) from getting tangled. We can make packaging that is strapped, palletized, and wrapped in a way that keeps moisture out for shipping. This keeps damage to a minimum when shipping over long distances.
Q: When is it better to use galvanized iron wire (GI wire) instead of plain steel wire?
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A: If your application is going to be in a wet, rainy, or mildly corrosive environment, use galvanized iron wire. The zinc coating protects by sacrificing itself. Electro-galvanized wire (8-20 g/m² zinc) may be enough for light-duty indoor use. Long-term outdoor uses such as fences and vineyard trellises require hot-dip galvanized steel (60-280 g/m²).
Q: What are some other kinds of coated wire besides galvanization?
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A: Sinsun sells more than just wires that are coated with zinc. The wire lasts longer, comes in more colors (like black welded wire for looks), and is less likely to rust when it is coated with PVC or PE. Insulated electrical wire is made with special dielectric materials that are safe to use with electricity. To keep chemicals, electricity, or damage from moving parts from getting through, you'll need a different coating.
Q: Is "zinc wire" the same as wire that has been galvanized?
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A: Yes. Zinc wire is wire that is mostly made of zinc. It is often used in thermal spraying (metalizing) to keep things from rusting. Zinc coats steel wire, which is called galvanized iron wire. It's important to differentiate between two products, one of which is a coating that can be used up, and the other of which is a finished steel part that can be reused.
Q: How can I receive a recommendation for the best welding wire?
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A: In order to recommend the optimal welding wire, we require the following information: 1) the type of base metal (e.g. mild steel or 304 stainless steel), 2) the welding process (MIG, TIG or submerged arc), 3) Wire diameter (e.g. 0.8 mm or 1.2 mm), 4) yield strength, or corrosion resistance. In this way, you can ensure that the composition of the wire matches that of your application.
Q: Can stainless steel wire be used for welding 304 stainless steel, or is a special grade required?
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A: For welding 304 to 304, a standard ER308/308L stainless welding wire is usually the best choice. However, you may require a different grade, such as ER309 or ER316, if you need to weld 304 to a different grade, or if the welding will be carried out in a corrosive environment at a high temperature. We'll give you the technical data sheets to help you choose the right wire alloy for your service and joint conditions.
Q: How are wire steel ropes (cables) constructed, and where are they used?
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A: Sinsun's wire steel rope comes in a few different standard designs. 6x19 (6 strands of 19 wires) is a general-purpose rope that is good for pulling and lifting because it is flexible and resists wear. 7x7 is a cable that doesn't twist and is more flexible. It's often used in control systems. 6x36 construction is more flexible than other types of construction for heavy lifting and mining. It strikes a balance between strength, flexibility, and fatigue resistance.
Q: What size and coating should I use for metal chicken wire in my garden?
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A: We suggest a 19 or 20-gauge (about 1.0mm thick) wire with a PVC-coated or heavily galvanized finish for a strong garden fence. This is a good mix of strength and resistance to rust and soil and moisture. Birds can fly through the hexagonal mesh opening, which is usually 1 inch (25mm) wide.
Q: What do people use black welded wire mesh for the most?
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A: Black welded wire mesh (steel wire that is welded at each intersection and has a black oxide or PVC finish) is popular because it looks clean and doesn't rust easily. Frequently, these fences are used to keep gardens and pets safe, as well as to protect industrial areas. It can also be used to make concrete projects stronger where rust isn't a problem right away.
Q: Why can't I find a set price for GI wire or aluminum wire on the internet? What makes the price go up?
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A: The prices of steel billets, zinc, and aluminum ingots on the world market change every day. The final price depends on 1) the current cost of raw materials, 2) the specifications you give us (diameter, tensile, coating weight), 3) how many items you want to order, and 4) the port where the items will be sent. Based on these things, we give you clear, up-to-date quotes.
Q: Can you produce wire rods that meet international standards, such as ASTM, BS or JIS?
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A: Certainly. Sinsun routinely manufactures wire rods that comply with the following standards: ASTM (US), BS (UK), JIS (Japan), ISO and GB (China). When asking for a price, please clearly say exactly what you need. This enables us to provide a tailored quote. Additionally, we can supply a Mill Test Certificate (MTC) to verify chemical composition and mechanical properties.
Q: How do I choose the right insulated electrical wire for a factory machine?
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A: The most important factors are the voltage rating, the temperature class and how the device will be used. Most factory wiring has a 600 V rating. Choose a higher temperature class, such as 105°C, if the machine is near a heat source. Use an insulating material that does not break down in oil, such as PVC/O, if you want to prevent oil or chemicals from getting in.
Q: How long does it take to fulfil custom orders, such as for insulated electrical wire?
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A: The usual lead time for standard items is 15–25 days from order confirmation. The lead time for custom products, such as insulated electrical wires with custom colours, thicknesses and printing, can be as long as 25 to 35 days. This allows time for production scheduling, sourcing materials and thorough quality testing. We always check the timeline before finalising an order.
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