S300GD+Z Galvanized Iron Sheet Plate Metal Fabrication Laser Cutting Service
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Tianjin Emerson Metal Steel Products Co., Ltd. is proud to present the S300GD+Z Galvanized Iron Sheet Plate Metal Fabrication Laser Cutting Service under the EMERSONMETAL brand. As a professional metal fabrication provider, we specialize in transforming S300GD+Z galvanized iron sheets into precision parts through advanced laser cutting, bending, and welding processes. Designed to balance strength, corrosion resistance, and workability, this service caters to industries ranging from construction to home appliances, delivering customized solutions that meet strict performance and durability requirements.
S300GD+Z is a high-strength galvanized iron grade engineered for structural and industrial applications. The “GD” in its name stands for “General Drawing,” indicating its suitability for cold forming, while “+Z” denotes its hot-dip galvanized coating—a key feature that sets it apart. This coating, formed by dipping the steel sheet in molten zinc, creates a tight bond with the base metal, forming a protective layer that resists rust and corrosion. Unlike painted or electroplated coatings, the hot-dip zinc layer offers uniform coverage, even on edges and corners, ensuring long-term protection in humid, outdoor, or industrial environments.
The mechanical properties of S300GD+Z are carefully optimized for versatility. With a yield strength of ≥300 MPa and tensile strength of ≥370 MPa, it provides sufficient rigidity to support structural loads, making it ideal for parts that need to maintain shape under pressure. At the same time, its elongation rate of ≥18% ensures excellent ductility—meaning it can be bent, stamped, or formed into complex shapes without cracking, a critical advantage for fabrication projects with intricate designs.
Its chemical composition further enhances its performance: carbon content is limited to ≤0.2% to improve weldability, while manganese (≤1.5%) boosts strength without sacrificing formability. This balance makes S300GD+Z suitable for both structural applications (where strength is key) and mechanical parts (where formability matters).
Our laser cutting service is designed to maximize the potential of this material. Equipped with state-of-the-art CNC laser cutting machines, we achieve tolerances as tight as ±0.1mm, ensuring parts match your drawings with exceptional accuracy. Laser cutting offers several advantages for S300GD+Z: it produces clean, burr-free edges that reduce the need for secondary finishing, minimizes material waste by optimizing nesting layouts, and avoids mechanical stress that could damage the galvanized coating. This precision is particularly valuable for complex shapes, such as brackets, panels, or frames, where dimensional accuracy directly impacts performance.
Beyond laser cutting, we offer complementary fabrication services to meet end-to-end needs. Bending is performed using CNC-controlled machines that apply uniform force, preserving the material’s structural integrity and avoiding cracks in the galvanized layer. Welding is executed by certified technicians using low-heat techniques to prevent zinc oxidation at joints, ensuring welded areas retain the same corrosion resistance as the base material.
Customization is central to our service. We accept orders based on customer drawings, with flexibility in sheet thickness (ranging from 0.3mm to 12mm), part size, and design complexity. Whether you need a single prototype for testing or large-volume production for industrial use, we accommodate orders starting from 1 piece, providing flexibility for projects of all scales. Our quality control process is rigorous: we source S300GD+Z sheets from certified suppliers, verify chemical compositions and mechanical properties upon receipt, and inspect every finished part for dimensional accuracy and coating integrity. This attention to detail ensures that each product meets the highest industry standards.
Product Main Parameters
Parameter
Specification
Material
S300GD+Z galvanized iron sheet (hot-dip galvanized coating)
OEM/ODM based on customer drawings; available in thicknesses 0.3mm-12mm, with customizable shapes and sizes
Brand
EMERSONMETAL
Minimum Order Quantity
1 piece
Key Advantages
High corrosion resistance, good formability, excellent weldability, cost-effective
Application Scenarios
S300GD+Z galvanized iron sheets, with their balanced properties, are widely used across industries, each leveraging their unique strengths:
Construction and Building: The material is a staple in roofing panels, wall cladding, and ceiling grids. Its galvanized coating resists rain and humidity, ensuring long-term performance in outdoor and indoor environments. For example, roofing panels made from S300GD+Z maintain their structural integrity in heavy rain or snow, while their formability allows for easy installation with interlocking designs.
Home Appliances and Furniture: S300GD+Z is used in manufacturing refrigerator back panels, washing machine frames, and furniture supports. Its corrosion resistance protects against moisture from appliances, while its smooth surface (enhanced by the galvanized coating) simplifies painting or decoration. The material’s formability also allows for the sleek, modern designs demanded by consumer products.
Automotive and Transportation: In the automotive industry, it is used for car floor pans, wheel arches, and cargo compartment panels. Its strength supports vehicle structure, while the galvanized coating resists corrosion from road salt and water. Its formability enables the complex shapes needed to fit around other vehicle components.
Industrial Equipment and Storage: S300GD+Z is ideal for manufacturing storage racks, tool cabinets, and machine guards. Storage racks benefit from its strength to hold heavy loads, while machine guards rely on its corrosion resistance to withstand industrial coolants and oils. The material’s weldability also allows for easy assembly of these structures.
Agricultural and Outdoor Products: It is used in agricultural machinery parts (e.g., tractor fenders) and outdoor furniture (e.g., garden benches). In these applications, its ability to resist weathering and rust ensures long service life, even with constant exposure to sunlight and rain.
Frequently Asked Questions (FAQ)
What makes S300GD+Z different from other galvanized steels, such as S350GD+Z? The key difference lies in yield strength: S300GD+Z has a yield strength of ≥300 MPa, while S350GD+Z offers ≥350 MPa. This makes S300GD+Z more ductile (elongation ≥18% vs. S350GD+Z’s ≥14%), making it easier to bend into complex shapes. S350GD+Z is better for heavy structural loads, but S300GD+Z is more versatile for applications requiring both formability and moderate strength. If your design involves tight bends or intricate curves, S300GD+Z is the better choice; for high-load structural parts, consider S350GD+Z. Our team can help select the right grade based on your drawings.
How thick is the galvanized coating on S300GD+Z, and can it be customized? The standard galvanized coating thickness for S300GD+Z ranges from 60 g/m² to 275 g/m² (equivalent to 8-39 μm per side). Thicker coatings offer enhanced corrosion resistance but may slightly reduce formability. We offer customized coating thicknesses based on your needs: for indoor applications (e.g., furniture), 60-120 g/m² is sufficient; for coastal or industrial environments, 180-275 g/m² is recommended. We can specify the coating thickness in your order and provide certification to confirm it meets your requirements.
Will laser cutting damage the galvanized coating of S300GD+Z? Laser cutting minimally affects the galvanized coating. Our machines use precise heat control to cut through the material quickly, limiting heat transfer to the surrounding area. While a small heat-affected zone (HAZ) near the cut edge may lose some zinc, this area is negligible (typically ≤0.5mm wide) and does not significantly impact overall corrosion resistance. For critical applications, we offer post-cut treatments, such as zinc-rich paint touch-ups, to restore protection to the HAZ.
What is the maximum size of parts that can be fabricated from S300GD+Z sheets? We work with standard S300GD+Z sheet sizes up to 1220mm x 2440mm (4 feet x 8 feet), but our laser cutting service can produce parts as small as 5mm x 5mm or as large as the sheet itself (1220mm x 2440mm) for single-piece components. For larger parts, we can weld multiple pieces together with precision. When designing, consider the 4x8 sheet size to minimize waste—our nesting software optimizes part placement to reduce material costs.
What is the lead time for laser cutting and fabrication of S300GD+Z parts? Lead time depends on part complexity and order quantity. For simple laser-cut parts (e.g., flat panels with basic holes) in quantities of 1-50 pieces, we deliver within 3-5 working days. For parts requiring bending, welding, or larger quantities (100+ pieces), lead times are 7-10 working days. Urgent orders can be expedited: small batches (1-10 pieces) with simple designs can be completed in 2-3 working days for an additional fee. We provide a detailed timeline after reviewing your drawings to ensure on-time delivery.
Why Choose Our S300GD+Z Fabrication Service
Our S300GD+Z Galvanized Iron Sheet Fabrication Service stands out for its focus on quality, precision, and customer satisfaction:
Material Expertise: We source S300GD+Z from certified suppliers, ensuring consistent chemical composition and coating quality. This guarantees reliable performance in your applications.
Advanced Laser Cutting: Our CNC laser machines achieve ±0.1mm tolerances, ensuring parts fit perfectly. The process minimizes waste and preserves the galvanized coating, reducing post-processing needs.
Comprehensive Fabrication: Beyond cutting, we offer bending, welding, and finishing, providing one-stop solutions from raw material to finished part.
Customization Flexibility: We accommodate orders from 1 piece to large volumes, with customizable thicknesses, coating levels, and shapes to match your exact needs.
Quality Assurance: Rigorous inspections at every stage—from material incoming to final packaging—ensure parts meet your specifications. We also provide material certification for traceability.