12 gauge galvanized steel wire has a diameter of approximately 2.77 mm (BWG). It is a medium-diameter wire made from high-quality carbon steel. The wire is processed through wire drawing, annealing, and hot-dip galvanizing or electro-galvanizing processes. It offers excellent corrosion resistance, reliable strength, and long service life. Wanzhi Group provides customized zinc coating, coil weight, and packaging options. We also supply black annealed wire, PVC coated wire, barbed wire, and welded wire mesh.

Specification
| Product Name | 12 Gauge Galvanized (GI) Steel Wire |
|---|---|
| Standard | AISI, ASTM, DIN, JIS, GB, EN |
| Diameter | 2.77 mm |
| Weight | 0.0473kg/m |
| Base Material | Q195 / Q235 / SAE1006 / SAE1008 |
| Galvanizing Type | Electro-galvanized (EG) / Hot-dip galvanized (HDG) |
| Surface Treatment | Passivation, oiling, PVC/PE coating, etc |
| Yield strength | Soft Wire: 240–380 MPa Hard Drawn Wire: 400–600 MPa |
| Tensile Strength | Soft Wire: 350–500 MPa Hard Drawn Wire: 550–700 MPa |
| Elongation | Soft wire: ≥15%, Hard wire: ≥8% |
| Zinc Coating Weight | EG: 10-60g/m², HDG: 30-275 g/m² (customizable) |
| Processing Service | Bending, cutting, welding, weaving, etc. |
| Bundle Weight | 10kg-1000kg, customizable |
| Package | Standard export packaging or as per your requirements |
| MOQ | 5 tons |
| Certification | ISO 9001, SGS, BV, etc. |
Manufacturing Process of 12 Gauge Galvanized Wire
12 gauge galvanized steel wire is produced through wire drawing, annealing, surface treatment, and galvanizing processes. These steps ensure accurate diameter, good flexibility, and reliable corrosion resistance.
- Wire Drawing: High-quality low carbon steel wire rods pass through drawing dies to achieve the required diameter of approximately 2.77 mm. This process improves dimensional accuracy and surface quality.
- Annealing: The drawn wire undergoes heat treatment to release internal stress and improve ductility. This process enhances flexibility for bending, weaving, and fabrication.
- Surface Treatment: The wire surface undergoes degreasing, pickling, and washing to remove impurities. These processes improve surface cleanliness and zinc coating adhesion.
- Galvanizing: The cleaned wire enters hot-dip galvanizing or electro-galvanizing processes to form a protective zinc layer. The coating provides excellent corrosion resistance and extends service life.
- Coiling & Packaging: Finished galvanized wire undergoes quality inspection before coiling into different weights. Various packaging options are available based on transportation and storage requirements.
Core Advantages of 12 Gauge Galvanized Wire
- Corrosion Resistance: Zinc coating isolates corrosive elements and extends service life.
- Balanced Strength: 2.77 mm diameter provides reliable strength for various applications.
- Excellent Flexibility: Low carbon steel offers good ductility for bending and weaving.
- Easy Fabrication: Supports cutting, welding, and shaping into different products.
- Universal Size: Standard 12 gauge specification ensures easy sourcing and compatibility.
- Cost Efficiency: Durable performance with competitive cost for large-scale projects.


12 Gauge GI Wire Applications
- Fencing: Zoo fencing, farm fences, garden protection, isolation barriers, and wire mesh fences.
- Construction & Bundling: Rebar tying, scaffolding fixing, formwork support, and reinforcement mesh production.
- Agriculture & Horticulture: Greenhouse supports, vine trellises, orchard fencing, plant tying, and animal cages.
- Industrial Manufacturing: Heavy-duty mesh, equipment protection, cable armoring, and wire products.
- Handicrafts & DIY: Metal crafts, decorative fencing, weaving, and handmade projects.
- Other Applications: Temporary fences, aquaculture nets, and general-purpose fixing.


Common Wire Gauge Standards Comparison
Wire gauge is a measurement system used to define wire diameter. Common standards include SWG (Standard Wire Gauge) and BWG (Birmingham Wire Gauge). Different standards may have different diameters for the same gauge number. In general, a higher gauge number means a thinner wire diameter. This chart compares common gauge sizes for easier wire selection.
| Wire Gauge | SWG (mm) | BWG (mm) | Metric (mm) |
| 8 | 4.06 | 4.19 | 4.0 |
| 10 | 3.25 | 3.40 | 3.5 |
| 11 | 2.95 | 3.05 | 3.0 |
| 12 | 2.64 | 2.77 | 2.8 |
| 13 | 2.34 | 2.41 | 2.5 |
| 14 | 2.03 | 2.11 | — |
| 15 | 1.83 | 1.83 | 1.8 |
| 16 | 1.63 | 1.65 | 1.65 |
| 18 | 1.22 | 1.25 | 1.2 |
| 20 | 0.91 | 0.89 | 0.9 |
| 22 | 0.71 | 0.711 | 0.7 |
Galvanized Wire Coil Packaging
Wanzhi Group provides flexible packaging solutions for galvanized wire coils based on wire size and shipping requirements. Packaging options include plastic film wrapping, inner plastic with outer woven bags, spool packaging, and coil packaging. These methods protect wires from moisture, dust, and damage during transportation. We also customize coil weight, labels, and packing methods according to customer needs.

Quality Control of Galvanized Wire
Wanzhi Group applies strict quality control throughout galvanized wire production. Each stage follows standardized procedures to ensure stable quality and reliable performance.
- Raw Material Inspection: Qualified low carbon steel wire rods and zinc materials are selected. Chemical composition and surface quality tests verify material consistency before production.
- Production Process Control: Production parameters, including wire diameter, annealing temperature, and galvanizing conditions, receive precise control. These measures maintain uniform zinc coating and stable mechanical properties.
- Performance Testing: Quality tests cover tensile strength, elongation, zinc coating weight, coating adhesion, and surface quality. Test results verify product performance and durability.
- Final Product Inspection: Final inspections check wire dimensions, surface condition, and packaging before shipment. Any quality issues are identified and handled according to inspection procedures.
- Standards & Third-Party Inspection: Production follows ASTM, GB, JIS, and EN standards. ISO-certified management systems support consistent quality control. SGS and BV third-party inspections are available.
- Quality Certificates & Reports: We provide MTC (Mill Test Certificate) and inspection reports for quality verification and customer requirements.

Your Reliable Galvanized Wire Supplier – Wanzhi Group
Wanzhi Group is an ISO-certified professional galvanized wire supplier. Wanzhi factory owns hot-dip and electro-galvanizing lines. It is also equipped with advanced processing equipment, laboratories, and sample display rooms. Each production line has a monthly capacity of up to 10,000 tons. We control every step from raw materials to finished products. Strict management ensures stable quality for each batch. Wanzhi Group provides professional wire mesh solutions to customers in over 120 countries and regions. Our products serve construction, industrial, agricultural, and other applications.




Comprehensive Supply Solutions
Wanzhi Group operates 2 galvanized steel lines, 3 color coating lines, 1 aluminum-magnesium alloy line, and 2 pipe production lines. Our annual production capacity reaches 600,000 tons. Our products range covers hot rolled steel, cold rolled steel, galvanized steel sheets, coils, strips, and wires. We also supply galvalume steel sheets, coils and strips, prepainted steel, prepainted aluminum (PPAL), zinc-aluminum-magnesium coated steel (ZAM), corrugated metal sheets, stainless steel, and pipes.
- Production & Delivery: Standard products are available from stock for fast delivery. Customized orders can be delivered within 5–45 days.
- Processing Services: We provide slitting, cutting, punching, stamping, bending, forming, welding, and customized fabrication services.
- One-Stop Service: Wanzhi Group provides full-service solutions covering material selection, technical support, production, and delivery. We offer 24/7 support for efficient project communication.
- Customized Specifications: We customize zinc coating, thickness, surface treatment, packaging, and coil weight according to customer requirements.




Export Experience
Wanzhi Group exports to South America, Africa, the Middle East, Southeast Asia, and Europe. Located near Qingdao and Tianjin ports, we ensure stable supply and efficient shipping. We support FOB, CIF, and EXW terms, with professional assistance in customs clearance, inspection, and booking.
Client Visits
To date, we have hosted customers from more than 40 countries and regions, including Chile, Libya, Azerbaijan, Singapore, Indonesia, Turkey, and Turkmenistan. We invite you to visit our factory or request free samples!

Global Cases
Wanzhi Group serves global customers, including steel distributors, construction companies, manufacturers, and steel buyers. We supply GI, GL, PPGI, PPGL, corrugated metal sheets, and other products. Our export cases in global markets demonstrate stable supply, consistent quality, and professional project support.
Wanzhi Steel – Agricultural Greenhouse Project in Turkmenistan
550 tons PPGI Steel Coil to Azerbaijan
100 tons of Galvanized Coils to Saudi Arabia
144 ton Steel Wire to Spanish
Project of PPGI Roofing en Libya
100 tons of GL and PPGL in Solomon Islands
Customer Feedback
Customer feedback highlights Wanzhi Group’s reliable quality, professional service, and timely delivery. See real reviews from our global customers below.
Looking for reliable 12 gauge galvanized solid wire? Wanzhi Group provides high-quality galvanized wire coils with durable performance, strong corrosion resistance, and competitive factory prices. Contact us for a accurate quotation and professional support for your project.






