Galvanized flat bar is rectangular steel coated with zinc via hot-dip galvanizing or electro-galvanizing. It boasts outstanding corrosion resistance and structural strength with low cost and easy fabrication, widely applied in construction, machinery manufacturing, load-bearing brackets and industrial parts. Wanzhi Group supplies high-precision, weather-resistant galvanized flat bars for harsh working conditions. We also provide full deep processing including slitting, bending, punching, forming, painting and special shaped customization.
Width: 10mm – 870mm
Thickness: 0.5mm – 5.0mm
Material Grades: Q195/Q235/Q215/Q345/20Cr/40Cr/20CrMo/35CrMo
Specification
| Product Name | Galvanized Flat Bar |
|---|---|
| Material Grades | Q195/Q235/Q215/Q345/20Cr/40Cr/20CrMo/35CrMo |
| Galvanizing Type | Hot Dipped Galvanized / Electro Galvanized |
| Zinc Coating Weight | HDG: Z30 – Z275g/m2 EG: Z10-Z50 g/m2 |
| Width | 10mm – 870mm |
| Thickness | 0.5mm - 5.0mm |
| Length | 6m - 12m, can be customized |
| Color | Silver |
| Processing Service | Cutting, punching, welding, drilling, slitting, forming, polishing, etc. |
| MOQ | 10 tons |
| Standard | AISI, ASTM, DIN, JIS, GB, EN |
| Certificates | SGS, ISO BV, CE etc. |
| Package | Standard export packaging or as per your requirements |
| Application | Construction brackets, culvert fittings, load-bearing frames, industrial components |
What Is Galvanized Flat Bar?
Galvanized flat bar is solid rectangular steel coated with hot-dip or electro zinc layer. We offer multiple grades: low-carbon Q195/Q215/Q235/A36 for general applications, high-strength Q345/S355JR/1018 for heavy-duty projects, and custom alloy steel on demand. Hot-dip galvanized coating delivers superior rust resistance and an extended service life, acting as a budget-friendly alternative to stainless steel. It boasts stable structural strength and allows easy cutting, drilling, welding and forming. Anti-rust touch-up paint can be applied to restore protection on exposed steel at cut edges, drilled holes and welding spots.
Galvanizing Process of Galvanized Flat Bar
Wanzhi Group operates two hot-dip and one electro-galvanizing production lines. We can provide both galvanizing processes to meet different precision, appearance and anti-corrosion requirements of galvanized flat bars.
- Hot-dip Galvanizing (HDG): This process submerges flat steel into molten zinc to create thick zinc coating (30-275 g/m²). It offers great anti-rust capacity, perfect for outdoor projects and large structural steel pieces.
- Electro Galvanizing (EG): It generates thin zinc coating (10-50 g/m²) through electrochemical reaction. The surface is smooth with high precision, fit for delicate parts used indoors or mild outdoor conditions.
How to Calculate the Weight of GI Flat Bar?
Calculate the theoretical weight of GI flat bar via this formula: Weight per meter (kg/m) = Width (mm) × Thickness (mm) × 0.00785. Multiply the weight per meter by the total length (m) to obtain the total weight of the GI flat bar.
Advantages & Usages of Galvanized Flat Bar
Benefits
- Excellent rust and corrosion resistance: Integral zinc coating fully wraps the steel substrate, isolating air and moisture to effectively prevent oxidation and rust, adapting to damp, saline and outdoor exposure environments.
- Firm coating adhesion: The zinc layer closely bonds with the base steel, not easy to fall off under bending, collision and extrusion during processing and installation.
- Outstanding mechanical performance: Solid rectangular steel body delivers stable tensile and bearing strength, capable of supporting structural load for brackets, frames and engineering fittings.
- Great machinability: The product can be freely slitted, cut, bent, punched, drilled, welded and shaped to match customized component requirements.
- Low long-term maintenance: No frequent repainting or anti-rust treatment needed after installation, saving follow-up labor and material maintenance costs.
- Economical cost performance: It provides reliable anti-corrosion protection at a far lower cost than stainless steel, perfect for mass engineering procurement.
- Good surface wear resistance: The zinc coating has certain abrasion resistance, reducing surface scratches during transportation and on-site construction.
Usages
- Building Structural Supports: Used for wall brackets, ceiling supports, handrail frames, stair accessories and building embedded parts in civil construction.
- Municipal & Outdoor Engineering: Fabricate road guardrail fittings, street lamp bases, drainage culvert components and outdoor sign fixing frames.
- Agricultural Facilities: Make greenhouse support frames, livestock farm fences, breeding equipment brackets and farm storage rack parts.
- Machinery & Equipment Accessories: Produce mechanical mounting bases, transmission rack brackets, small equipment frames and machinery fixed connecting pieces.
- Hardware & Decoration: Process indoor decorative frames, furniture support parts, cabinet fixing strips and display stand components.
- Transportation Industry: Manufacture cargo rack accessories for trucks, trailer connecting parts and logistics storage shelf fittings.
- Pipeline & Water Conservancy Works: Act as fixing supports for water pipes, drainage pipe clamps and small water conservancy project fasteners.
- Electrical Engineering: Produce cable tray brackets, electrical cabinet fixing strips and outdoor power distribution auxiliary components.
Types of Galvanized Flat Steel
Galvanized flat steel is categorized in three logical dimensions: production processing method, base material grade and cross-sectional shape. Each type carries distinct surface precision, mechanical strength and cost features to fit construction, machinery, decoration and special engineering demands. Wanzhi Group supplies a full range of all mainstream classifications of galvanized flat steel with customizable sizes, galvanizing layers and material grades, etc.
Classified by Manufacturing Process
Classified by Base Material
Classified by Cross-sectional Shape
Wanzhi Galvanized Flat Bar Prices
The price of Wanzhi galvanized flat bar is mainly determined by factors including substrate cost, material grades, galvanizing technique, zinc coating weight, plus dimensional specifications. The price ranges from USD 600 to 800 per ton for regular carbon steel flat bar, with a minimum order quantity of 10 tons for factory direct pricing. Our delivery lead time is 5 to 45 days. Apart from galvanized flat bar, Wanzhi Group also supplies hot rolled/cold rolled steel, galvanized/aluzinc steel coils, sheets and strips, PPGI, PPGL steel coils and sheets, PPAL, metal corrugated sheets, and stainless steel. Please leave us a message with your required specifications and quantity, and we will offer you the most competitive prices and customized solutions!
Galvanized Flat Steel Manufacturer & Supplier – Wanzhi Group
Wanzhi Group is a Chinese manufacturer and supplier of galvanized steel. Our factory is located in Boxing County, Binzhou City, Shandong Province, China. It houses complete production lines for galvanized steel, aluzinc steel, color coated steel and zinc-aluminum-magnesium alloy steel, alongside dedicated sample rooms and quality inspection laboratories. We have established a rigorous full-process management system covering raw material procurement, production and processing, quality testing and finished product packaging, with an annual production capacity of 600,000 tons. We deliver one-stop services ranging from raw material supply to finished product delivery. Furthermore, we offer deep processing services including slitting, welding, stamping, punching, bending, forming, coating and custom special-shape fabrication. Please feel free to contact us, and our account managers will provide you with an accurate quotation!
Wanzhi Steel – Factory
- Production Advantages: Our factory features sophisticated galvanizing production lines, together with high-precision slitting, leveling, film laminating and coating equipment. Each production line boasts a monthly output of 10,000 tons to guarantee stable and reliable supply. We maintain abundant spot inventory, while the lead time for custom products ranges from 5 to 45 days.
- Global Supply Capacity: Wanzhi Group supplies a full range of metal raw materials and finished products worldwide, covering South America, Africa, the Middle East, Southeast Asia, Europe and other regions. The factory is close to Qingdao Port and Tianjin Port for a stable supply chain. We are familiar with local technical standards and customs clearance procedures to ensure smooth order delivery.
- Certificates: The factory holds ISO9001, ISO14001 and ISO45001 certifications. All steel products comply strictly with international standards including ASTM, GB, JIS and EN, and original Mill Test Certificates (MTC) are available. Third-party inspections such as SGS and BV are acceptable.
- One-stop Service: Wanzhi team provides full-cycle services covering material selection, technical consultation, production and delivery, with 24-hour after-sales response.
Packaging
We adopt standard export packaging including plastic film, moisture-resistant paper, galvanized steel sheets, corner protectors and wooden pallets to protect products against dampness and rust. In addition, customized export packaging services can be provided in accordance with customers’ requirements.
Global Cases
Wanzhi Group’s GI, GL, PPGI and PPGL products have been exported to 120 countries and regions across the globe. Going forward, Wanzhi will keep supplying customers with high-quality and cost-effective products.
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
Our galvanized coils, galvanized steel wires, aluzinc sheets and PPGI/PPGL coils have won authentic favorable reviews worldwide. Our professional team is available 24/7 to resolve all your pre-sales and after-sales inquiries.
If you have questions about the technical specifications, prices and other details of galvanized flat bar, or are interested in other Wanzhi galvanized steel products, please leave us a message. Our product managers will contact you shortly.