Gnee Steel (tianjin) Co., Ltd
                                                                                                           
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Hot Dipped Galvanized Stainless Steel Grating Serrated Drain Cover High Strength for Outdoor Use

Price Negotiable
Price: Negotiable
MOQ: 2PCS
Delivery Time: Shipped in 20 days after payment
Brand: Gnee
Product Description
High Quality Modern Style Stainless Steel Grating
Hot-dip galvanized steel grating is widely used across various industries due to its exceptional strength, durability, and superior anti-corrosion properties. This product offers reliable performance in demanding environments.
Production Process Overview
Material Preparation
The manufacturing process begins with selecting high-quality carbon steel bars that meet specific chemical composition and mechanical property standards. These bars are precisely cut to required lengths according to design specifications.
Welding Process
Steel bars are assembled and welded using either pressure resistance welding for efficiency and uniform strength, or manual arc welding for specialized applications. Pressure resistance welding ensures strong, consistent welds at intersection points under high pressure and electric current.
Pretreatment Before Galvanizing
Prior to galvanizing, welded gratings undergo thorough degreasing to remove oils and contaminants, followed by pickling to eliminate rust and oxide layers. Complete rinsing ensures surface preparation for optimal zinc adhesion.
Hot-Dip Galvanizing Process
Pretreated steel grating is immersed in molten zinc at approximately 450°C, creating a metallurgical bond that forms zinc-iron alloy layers. Galvanized layer thickness is controlled through immersion time and zinc bath composition, resulting in a smooth, dense protective coating.
Quality Inspection
Every hot-dip galvanized steel grating undergoes rigorous quality control including visual inspection for surface defects, precise measurement of galvanized layer thickness, and mechanical testing of load-bearing capacity and tensile strength.
Product Specifications
Available Materials
  • Carbon Steel
  • Stainless Steel
  • Aluminum
Surface Treatment Options
  • Hot Dipped Galvanized
  • Spray Painting
  • Polished and Powder Coated
Bearing Bar Types
  • Plain (Flat) Bar
  • Serrated Bar
  • I-Bar
Common Specifications
Bearing Bar Pitch (mm) Cross Bar Pitch (mm) Bearing Bar Size
30 100 WSG_203/253/323/403/205/325/405/455/505/555_30_100
30 50 WSG_203/253/323/403/205/325/405/455/505/555_30_50
40 100 WSG_203/253/323/403/205/325/405/455/505/555_40_100
40 50 WSG_203/253/323/403/205/325/405/455/505/555_40_50
60 50 WSG_203/253/323/403/205/325/405/455/505/555_60_50
For questions regarding dimensions or specific specifications, please contact us immediately.
Hot-dip galvanized steel grating product illustration showing detailed structure and surface finish

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Gnee Steel (tianjin) Co., Ltd
Location No.4-1114, Beichen Building, Beicang Town, Beichen District, Tianjin, China
Contact Person Zhang

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