Steel Wire Manufacturer & Supplier – Sino East Steel Group

Sino East Steel Group has manufactured and exported steel wire from our production base in Tianjin, China, since 2008. As a factory-direct supplier, we produce galvanized steel wire, stainless steel wire, low carbon black wire, binding wire, and spring steel wire on our own drawing and galvanizing lines, selling straight from the factory with no middlemen and no trading margins. Our export team has delivered steel wire to buyers in more than 80 countries across Asia, Africa, Europe, the Middle East, and the Americas. Stock sizes are available from a minimum order of just 5 tons, custom drawing and special processing starts at 20 tons, and standard delivery takes 15–30 days from Tianjin Xingang Port.

Steel wire is the invisible backbone of countless industries, appearing in fencing, construction binding, fasteners, springs, wire mesh, cables, and agricultural applications. Our wire is produced by cold drawing high-quality rod through precision dies, with diameters from 0.5 mm to 12.0 mm, tensile strengths from 300 MPa to 2000 MPa, and coil weights from 25 kg to 1000 kg. Our annual production capacity for wire exceeds 50,000 tons, and every coil is traceable from raw rod to finished product. Whether you need ASTM A641 galvanized wire, ASTM A580 stainless wire, or GB/T 343 low carbon wire, we supply consistent, certified material at wholesale factory prices.

Why Choose Sino East Steel Group as Your Steel Wire Supplier?

Wire buyers choose Sino East Steel Group because wire quality is judged by drawing consistency, coating uniformity, and tensile performance, and those are exactly the parameters we control in-house. With nearly three decades of export experience, our factory produces wire that feeds smoothly into nail machines, looms, spring coilers, and binding tools. Here is what you can expect on every order.

1. Factory-Direct Manufacturing, No Middlemen

We own the rod stock, wire drawing machines, galvanizing lines, and annealing furnaces that produce your wire. There is no trading company in the chain, so you pay the factory price and communicate directly with the production engineers who set drawing speed, die size, and coating parameters. Every inquiry is answered by our in-house export team, and every order is scheduled on our own drawing plan with confirmed delivery dates.

2. Full International Standards Compliance

Our steel wire is manufactured and tested to ASTM A641 for galvanized wire, ASTM A580 for stainless wire, GB/T 343 for low carbon wire, and JIS G3532 for general-purpose wire. Diameter, tensile strength, elongation, zinc coating weight, and surface quality are verified against the applicable standard before release. Each shipment includes mill test certificates in EN 10204 3.1 format, and third-party inspection by SGS, BV, or TÜV can be arranged on request.

3. Stable Quality with Multi-Step Inspection

Quality control begins with rod analysis and runs through each drawing pass, where diameter is monitored with laser micrometers, and through galvanizing, where coating weight is checked by weighing before and after dipping. Our laboratory verifies tensile strength, elongation, and wrapping performance for every production lot. This disciplined inspection keeps our customer-arrival rejection rate below 0.5 percent, and every order is covered by our written quality guarantee.

4. Flexible Supply for All Project Scales

From a 5-ton coil order for a local distributor to a 1,000-ton program for a fence manufacturer or concrete product plant, we scale with you. Popular diameters and coil weights are held in stock for fast dispatch, while custom diameters, tensile ranges, and coating weights are drawn to order. Mixed-coil containers, palletized coils, and customer-specific coil labeling are all available to fit your handling system.

Steel Wire Product Range

Our steel wire program covers five product families across the full drawing range. Tell us your application and required tensile strength, and we will recommend the most economical grade and coating for your process.

Galvanized Steel Wire

Galvanized steel wire is cold-drawn low carbon wire coated with zinc for corrosion protection in outdoor and binding applications. It is supplied with electro-galvanized coating of 15–60 g/m² for light-duty use or hot-dip galvanized coating of 40–400 g/m² for long outdoor service, in diameters from 0.5 mm to 12.0 mm. Typical uses include fencing, wire mesh, baling, tie wire, cable armoring, and agriculture. Coating uniformity, adhesion, and diameter tolerance are verified on every production lot.

Stainless Steel Wire (302/304/316)

Stainless steel wire in grades 302, 304, and 316 combines corrosion resistance with strength and formability for demanding applications. Grade 302 offers high strength for springs and fasteners, grade 304 covers general industrial use, and grade 316 provides maximum resistance to chlorides and chemicals for marine and food processing environments. We supply bright annealed, soft, or hard drawn conditions to suit weaving, coiling, and forming processes, in diameters from 0.5 mm to 8.0 mm.

Low Carbon Black Wire, Binding Wire and Spring Steel Wire

Low carbon black wire is soft, ductile wire used for binding, tying, and general wirework, supplied in diameters from 0.5 mm to 6.0 mm with tensile strengths around 300–500 MPa. Binding wire is the construction industry standard for tying rebar, supplied in coils of 25–50 kg for easy handling on site. Spring steel wire is medium and high carbon wire with tensile strengths up to 2000 MPa for springs, clips, and mechanical components. All three are available with optional annealing, bright, or oiled surface finishes.

Steel Wire Specifications

The table below summarizes the standard range and specifications for our steel wire. Custom diameters, tensile ranges, and coating weights can be drawn to order, so please send your exact requirement for a firm quotation.

Parameter	Available Range
Wire Types	Galvanized / Stainless (302, 304, 316) / Low carbon black / Binding / Spring steel
Diameter	0.5 – 12.0 mm
Coil Weight	25 – 1000 kg per coil
Zinc Coating	15 – 60 g/m² (electro) / 40 – 400 g/m² (hot-dip)
Tensile Strength	300 – 2000 MPa depending on grade and diameter
Standards	ASTM A641 / GB/T 343 / ASTM A580 / JIS G3532
Surface Finish	Bright / Black / Galvanized / Annealed / Oiled
Packing	Coils with waterproof wrapping, palletized or loose
Certification	Mill test certificate, EN 10204 3.1, third-party inspection

Steel Wire Weight Reference Table

Theoretical weight is calculated as diameter × diameter × 0.00617 kg per meter, based on a steel density of 7.85 g/cm³. The table below shows kilograms per kilometer for common diameters; multiply by the coil length to check theoretical coil weight.

Diameter	Theoretical Weight (kg/km)
0.5 mm	1.54
0.8 mm	3.95
1.0 mm	6.17
1.5 mm	13.88
2.0 mm	24.66
2.5 mm	38.56
3.0 mm	55.53
4.0 mm	98.65
5.0 mm	154.25
6.0 mm	222.12
8.0 mm	394.88
10.0 mm	617.00

Typical Applications of Steel Wire

Steel wire serves an extraordinary range of industries. Typical applications include:

• Chain link fencing, field fencing, and security mesh
• Binding and tying rebar in concrete construction
• Nail, staple, and fastener manufacturing
• Wire rope, cable, and overhead conductor armoring
• Springs for automotive, furniture, and industrial equipment
• Welded wire mesh for roads, floors, and precast products
• Agricultural trellising, vineyard wire, and poultry cages
• Cold heading stock for screws, bolts, and specialized fasteners

Wire Quality That Performs at Every Drawing Step

Wire quality is decided long before the coil reaches your machine. Our drawing process starts with rod that is cleaned and coated for a consistent die interface, then drawn at controlled speeds with calibrated dies to hold diameter within tolerance along the entire length. Galvanizing lines control zinc bath temperature and withdrawal speed so the coating is uniform and well adhered, and we verify coating weight by the standard stripping method on every lot. For stainless wire, annealing cycles are matched to the required hardness condition, whether soft, quarter hard, or spring temper. The result is wire with predictable tensile strength, smooth surface, and even coating, which means fewer breakages, less downtime, and more consistent finished products for our customers, from nail plants to wire mesh weavers.

How We Ensure Reliable Export Service

Wire is a high-volume, time-sensitive commodity, and our export service is built for that reality. Here is how we keep your supply chain moving.

Export Experience Across 80+ Countries

We ship steel wire to more than 80 countries every year, serving fencing manufacturers, construction companies, fastener plants, and agricultural suppliers around the world. Our export team knows the documentation, packing, and port practices of each destination, and we apply that knowledge to container loads, loose coils, and palletized shipments alike.

Professional Export Documentation

Every shipment includes a commercial invoice, packing list, bill of lading, certificate of origin, and mill test certificates with diameter, tensile, and coating data. For contract work we can arrange SGS, BV, or TÜV inspection before loading and provide loading reports with photographs and weighbridge tickets. Coil-by-coil labels carry the diameter, grade, heat number, and coil weight for full traceability.

Flexible Payment and Incoterms

We quote FOB Tianjin as standard and can provide CIF, CFR, and DDP pricing to most destinations. Payment terms are T/T with a 30 percent deposit and 70 percent balance against shipping documents, or L/C at sight for larger and repeat orders. For regular buyers we are happy to discuss contract pricing that protects both sides against raw material price movements.

Pricing, MOQ & Delivery

This summary explains how we price and schedule steel wire orders. Firm quotations depend on type, diameter, tensile range, coating, and current rod prices, so please send your specification for an exact price.

• Price range: USD 480–1800 per ton FOB Tianjin; low carbon black wire at the lower end, stainless wire at the higher end
• MOQ: 5 tons for stock sizes; 20 tons for custom drawing, coating, and heat treatment
• Payment: T/T 30% deposit plus 70% against shipping documents, or L/C at sight
• Delivery: 15–30 days after deposit confirmation, depending on diameter and quantity
• Packing: coils with waterproof wrapping, palletized or loose, with coil labels and steel strap reinforcement

Buyer’s Guide: How to Choose a Reliable Steel Wire Supplier

Start your wire sourcing by defining the end use, because that determines diameter, tensile strength, coating, and temper. For binding and fencing, low carbon galvanized wire is usually the economical choice; for springs and fasteners, you need controlled tensile ranges and consistent hard drawn or tempered material; for corrosive environments, stainless is the only option that lasts. Verify that the supplier can issue mill certificates matching the delivered heat numbers, and agree on diameter tolerance and zinc coating weight in writing. Ask how coils are packed and labeled, because tangled or unmarked coils waste hours in your plant. Compare total landed cost, and test the supplier with one container before committing to long-term volume. A factory supplier like Sino East Steel Group that controls drawing, coating, and inspection under one roof gives you the consistency that wire processes depend on.

How to Get a Quotation

Getting a firm wire quotation from Sino East Steel Group is fast and simple. Send us the wire type, diameter, tensile strength range, coating requirement, coil weight, quantity, and destination port, and our export team will reply within 24 hours with a complete offer. If you are not sure which grade or coating suits your process, describe your application and our engineers will recommend the right specification. Contact us through the form on this page, by email, or by phone and WhatsApp, and we will respond in English or Chinese.

Frequently Asked Questions (FAQ)

Q1: How do I choose between galvanized and stainless steel wire?

Galvanized steel wire is zinc coated for corrosion protection and is the economical choice for fencing, binding, mesh, and general outdoor use where some coating wear is acceptable. Stainless steel wire resists corrosion through its alloy composition and is required where the surface cannot be compromised, such as food processing, medical, marine, and high-temperature applications. If you expect long service life in harsh conditions, stainless wire usually has the lower total cost of ownership.

Q2: What is the difference between electro-galvanized and hot-dip galvanized wire?

Electro-galvanized wire has a thinner zinc coating, typically 15–60 g/m², applied by electrolysis, which gives a smooth bright surface suited to indoor or light-duty outdoor use such as binding and small wire products. Hot-dip galvanized wire is passed through molten zinc, producing a heavier coating of 40–400 g/m² with excellent durability for fencing, mesh, and long-term outdoor installations. Choose hot-dip when the wire will face years of weather exposure.

Q3: What tensile strengths can you supply for steel wire?

We supply tensile strengths from about 300 MPa for soft low carbon binding wire up to 2000 MPa for high carbon spring wire, with intermediate ranges for mesh, nails, fencing, and cold heading applications. Tensile strength is matched to diameter and application, and we confirm the guaranteed range in the mill certificate for every lot. Tell us your required range and our engineers will select the appropriate grade and drawing schedule.

Q4: What coil weights and packing do you offer?

Standard coil weights range from 25 kg for construction binding wire to 1000 kg for large-diameter galvanized and black wire. Coils are wrapped in waterproof material, strapped with steel bands, and either palletized or loaded loose with proper blocking for containers. Each coil carries a label with diameter, grade, heat number, and net weight, and we can supply coils on wooden reels or pay-off carriers on request.

Q5: Can you supply wire drawn to a custom diameter or special coating weight?

Yes. Custom diameters within the 0.5–12.0 mm range, custom zinc coating weights, annealed or hard drawn tempers, and special surface finishes are produced to order with a minimum of 20 tons. Custom drawing takes slightly longer because it must be scheduled into the drawing program, but it gives you a wire specification matched exactly to your machine and product requirements.

Q6: What certificates do you provide for steel wire shipments?

Each shipment includes a commercial invoice, packing list, bill of lading, certificate of origin, and mill test certificates showing diameter, tensile strength, elongation, and zinc coating weight. For projects requiring independent verification we arrange SGS, BV, or TÜV inspection before loading, and we can provide a loading report with photographs and weighbridge tickets for full transparency.

Contact Sino East Steel Group today – send us your wire specification and receive factory-direct pricing, certified quality, and dependable export service from a manufacturer trusted in 80+ countries. Our team is ready to help you source the right steel wire for your production line.