Core Product Overview
Galvanized Steel Plate (ASTM A653 / DX51D‑Z / SGCC / Q235‑GI) is a hot‑dip zinc‑coated carbon steel sheet, widely recognized as the preferred material for projects requiring reliable anti‑rust performance and cost‑effective structural support. Compared with bare carbon steel plate, the continuous zinc‑alloy coating forms a physical and sacrificial protection barrier, greatly improving resistance to atmospheric corrosion, salt‑spray and humid surroundings, making it highly stable for outdoor and damp working conditions.
Our full stock range covers thin plates (0.1mm‑3mm), medium plates (3mm‑6mm), with surface options including regular spangle, minimized spangle, zero spangle and galvannealed finish. Every batch is sourced from top domestic and international steel mills, with 100% material test report (MTR) provided before delivery.
Key Specifications & Standard Compliance
| Parameter | Detailed Data |
|---|---|
| Standard Grade | DX51D‑Z, DX52D‑Z, DX53D‑Z, SGCC, SGCH, Q235GI, Q355GI |
| Thickness Range | 0.12mm‑6.0mm (custom ultra‑thin sheet & special‑thickness sheet available) |
| Common Sheet Size | 1000x2000mm, 1219x2438mm (4ft x 8ft), 1250x2500mm, 1500x3000mm |
| Surface Treatment | Regular spangle, minimized spangle, zero spangle, galvannealed, chromated, oiled & non‑oiled |
| Density | 7.85 g/cm³ |
| Mechanical Properties | Tensile Strength ≥270‑500MPa, Yield Strength ≥140‑380MPa, Elongation ≥22% |
| Compliance Standards | ASTM A653, EN 10346, JIS G3302, GB/T 2518 |
Unmatched Performance Advantages
Superior Anti‑Corrosion Sacrificial Protection
Continuous hot‑dip zinc coating creates both physical barrier and sacrificial anode protection. Galvanized steel sheet resists atmospheric rust, humid environments and moderate salt‑spray erosion. Even minor surface scratches will still obtain cathodic protection, extending service life for outdoor exposed components.
Good Cost‑Efficiency & Processing Compatibility
Compared with stainless steel or anti‑rust painted carbon steel, galvanized steel delivers long‑term rust‑proof performance at favorable cost. It supports most cold‑working processes without extra anti‑corrosion painting steps, significantly cutting total project operation and maintenance expenses.
Reliable Surface Consistency & Weather Resistance
Uniform zinc‑coating layer provides stable anti‑rust capacity under variable outdoor weather. Well‑selected spangle options keep surface appearance consistent, suitable for both hidden structural parts and visible exposed facade components.
Outstanding Fabrication Versatility
It features good cold bending, stamping and machining performance. Laser cutting, shearing, roll forming, punching and welding can be completed smoothly. Proper process control avoids zinc‑layer peeling or cracking during fabrication.
Wide Application Scenarios
Our galvanized steel sheets are widely adopted in global industries, including:Building & Construction Engineering: Roofing sheets, wall panels, purlins, gutter systems, steel‑structure accessories, outdoor guardrails Mechanical Manufacturing: Equipment casings, ventilation ducts, cabinet shells, hardware accessories, agricultural machinery parts HVAC & Ventilation Industry: Air duct components, fan housings, air‑conditioning outer shell parts Transportation Sector: Truck body panels, trailer accessories, vehicle chassis components, container auxiliary parts General Industrial Fields: Solar mounting brackets, cable trays, warehouse shelving, outdoor enclosures
Customization & Processing Services
We are not just a galvanized steel sheet supplier — we provide one‑stop solutions to cut your total procurement cost: Non‑standard thickness, width and length custom production according to your drawings
Precision processing: Laser cutting, shearing, slitting, edge trimming, bending, punching, roll forming Small trial order support for new customers, large spot inventory for urgent delivery within 3 days Custom packaging for sea freight, waterproof paper + anti‑rust separators + wooden pallets to avoid transportation damage and zinc‑layer scratch
Quality Assurance & Order Process
Pre‑production: Strict raw material inspection, all raw materials come from certified large steel mills In‑production: Real‑time thickness, flatness, zinc‑coating weight and surface quality monitoring during galvanizing Pre‑delivery: 100% material composition spectrum test, mechanical property & zinc coating weight recheck, complete MTR documents provided After‑sales: 12‑month quality guarantee, quick response for any product quality disputes within 24 hours
Get Your Free Quote Today
If you are looking for a reliable galvanized steel sheet supplier with stable quality, competitive price and fast delivery, we are your ideal choice. Leave your required thickness, zinc coating weight, size, quantity and application scenario in the inquiry form We will send you the formal quotation with detailed specification sheet and delivery plan within 2 working hours Free sample (thickness ≤6mm, 100x100mm) is available for your performance test, you only need to bear the express fee
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