Our 5mm galvanized steel plate combines robust structural thickness with a bright, highly durable galvanized luster. Engineered for superior corrosion resistance, we ensure every plate features a uniform zinc coating and stable mechanical performance to meet the highest industry standards.
At BOMIS STEEL, we go beyond just supplying premium raw materials. We offer one-stop customization services, including precision slitting, cutting, punching, and bending, tailored perfectly to your project requirements.
Product Specifications:
Thickness: 5mm
Width: 50mm – 2000mm (Customizable)
Length: Customized according to your specific needs and shipping weight limits
Zinc Coating: Z30 – 300g/㎡ (Ensuring excellent rust protection)
Processing Services: Cutting, Slitting, Punching, Profiling, etc.
Manufactured for demanding applications, our 5mm thick galvanized steel plates deliver both a premium bright finish and uncompromised structural integrity. For projects needing a lighter gauge, our 3mm galvanised sheet provides the same zinc protection in a thinner profile. With a perfectly distributed zinc layer ranging from Z30 to 300g/㎡, these plates provide ultimate protection against harsh environments.
| Specification Item | Premium 5mm Galvanized Steel Parameters |
| Product Name | 5mm Galvanized Steel Coil / Sheet / Plate / Strip |
| Thickness | 5.0mm (Strict thickness tolerance control) |
| Width | 50mm – 2000mm (Customizable slitting available) |
| Length | Custom cut-to-length based on application & transport payload limits |
| Zinc Coating | Z30 – 275g/㎡ (Heavy zinc coating available upon request) |
| Spangle Type | Zero spangle, Minimized spangle, Regular spangle, Large spangle |
| Steel Grades | DX51D – DX53D, SGCC, SGCH, G350/G450/G550, Q195/Q235/Q345, ASTM A653 |
| International Standards | ASTM, JIS G3302, EN 10346, GB/T |
| Surface Treatment | Passivated (Chromated / Cr-free), Oiled / Unoiled, Anti-fingerprint (AFP) |
| Processing Services | Slitting, Cut-to-length, Laser Cutting, Bending, Punching, Roll Forming, Welding |
| MOQ | 18 Tons (Trial orders can be negotiated) |
| Packaging Details | Seaworthy Export Standard (Waterproof paper + plastic film + steel strip packing) |
Thanks to its exceptional structural strength and thick, corrosion-resistant zinc layer, our 5mm galvanized steel plate is the ultimate choice for demanding industrial, outdoor, and heavy-duty applications:
Construction & Infrastructure
Ideal for heavy-duty load-bearing structures. Widely used in fabricating primary structural beams, supporting columns, and foundational frameworks for industrial factories, large-scale logistics warehouses, and sports stadiums.
Automotive & Transportation
Engineered to withstand high impact and harsh environments. Essential for manufacturing commercial truck chassis reinforcement plates, heavy-duty bumper brackets, and protective bottom guard plates for buses, trains, and subway carriages.
Energy & Solar Sector
Providing decades of rust protection for critical power systems. Frequently specified for Solar Photovoltaic (PV) mounting brackets, high-voltage transmission towers, electrical substation structures, heavy cable trays, and robust outdoor distribution cabinets.
Modern Agriculture
Built to endure high-humidity and corrosive agricultural environments. Perfectly suited for heavy-duty greenhouse structural frames, grain silos, livestock feeding troughs, durable animal fencing systems, and reinforcing agricultural machinery.
Public Works & Custom Fabrication
A versatile base material for municipal and security infrastructure, including highway crash barriers, street lighting poles, pedestrian safety brackets, industrial security gates, and heavy-duty outdoor infrastructure.
Premium Manufacturing Standards We source only top-tier raw materials and utilize state-of-the-art production lines. This strict adherence to advanced manufacturing processes ensures outstanding mechanical properties, flawless surface finishes, and exceptional longevity for every batch.
Comprehensive Product Portfolio As a fully integrated supplier, we offer a robust range of solutions beyond standard plates. Our inventory includes premium galvanized steel coils, precision-cut strips, structural tubes, custom profiles, and roofing sheets to meet diverse project demands.
Rigorous Quality Control (QA/QC) Quality is verified at every stage. Our in-house testing laboratory meticulously inspects zinc coating thickness, dimensional tolerances, and corrosion resistance. We fully support and welcome certified third-party inspections (such as SGS, BV, or Intertek) prior to shipment.
Global Industry Expertise Backed by decades of specialized experience in the international steel trade, our technical sales team does more than just take orders. We provide insightful consultations, helping you select the exact steel grades, coating weights, and processing methods to optimize your project’s performance and budget.
Q1: Can BOMIS Steel provide custom cutting, slitting, or punching for 5mm galvanized steel plates?
A: Yes, absolutely. Beyond supplying standard coils and sheets, BOMIS Steel operates advanced in-house processing facilities. We provide customized service including precision slitting, cut-to-length, laser cutting, bending, and pre-punching based on your engineering drawings, delivering ready-to-use structural components directly to your site.
Q2: What is the maximum zinc coating available for your 5mm thick galvanized plates?
A: For heavy-duty outdoor and high-corrosion environments (such as solar PV brackets or marine applications), we can supply heavy zinc coatings up to Z300 (300g/㎡). For standard structural applications, our typical zinc layer ranges from Z30 to Z275g/㎡, ensuring excellent, long-lasting rust protection.
Q3: How do you pack 5mm steel plates to prevent rust and damage during long sea freight?
A: We utilize strict Seaworthy Export Standard Packaging. Every bundle is wrapped with premium waterproof kraft paper and damp-proof plastic film, then securely fastened with high-strength steel strips on sturdy wooden pallets. This guarantees your steel arrives at your destination port in bright, pristine condition without white rust.
Q4: What steel grades do you supply for 5mm galvanized steel?
A: We supply a comprehensive range of international steel grades suitable for cold forming and deep drawing. Popular grades include DX51D to DX53D, SGCC, structural grades G350/G450/G550, Q195/Q235/Q345, conforming strictly to ASTM A653, EN 10346, and JIS G3302 standards.
