Gnee Steel (tianjin) Co., Ltd.
                                                                                                           
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Since 2008
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High Strength Hot Dipped Galvanized Steel Grating Serrated Drain Cover for Outdoor Building

Price Negotiable
Price: Negotiable
MOQ: 2PCS
Delivery Time: Shipped in 20 days after payment
Brand: Gnee
Product Description
High Quality Steel Grating Hot Dipped Galvanized Serrated Outdoor Drain Cover
This high-strength steel grating features hot-dip galvanized coating for superior corrosion resistance, making it ideal for building applications and outdoor drainage systems.
Production Process
Material Preparation
High-quality carbon steel bars are selected and cut to precise lengths according to design specifications, ensuring optimal structural integrity.
Welding Process
Two primary welding methods ensure durable construction:
  • Pressure resistance welding: Efficient automated process creating uniform, high-strength welds
  • Manual arc welding: Used for specialized applications requiring skilled craftsmanship
Pretreatment before Galvanizing
Critical surface preparation steps include:
  • Degreasing to remove contaminants
  • Pickling to eliminate rust and oxidation
  • Thorough rinsing to prepare for galvanization
Hot-Dip Galvanizing Process
The grating is immersed in molten zinc at 450°C, forming a durable zinc-iron alloy protective layer with adjustable thickness for specific requirements.
Quality Inspection
Rigorous testing ensures:
  • Visual inspection for surface defects
  • Measurement of galvanized layer thickness
  • Verification of mechanical properties including load capacity
Product Specifications
Bearing Bar 25mmx3mm 30mmx3mm 35mmx5mm 40mmx5mm 50mmx6mm Custom-made
Bearing Bar Pitch 30mm 35mm 38mm 40mm 50mm Custom-made
Cross Bar Pitch 33mm 54mm 64mm 100mm 150mm Custom-made
Width 914mm 1000mm 2000mm Custom-made
Length 1000mm 2000mm 3000mm 5800mm 6000mm Custom-made
Hot-dip galvanized steel grating product image

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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 FLAT/RM 1512 15/F LUCKY CENTRE NO.165-171 WAN CHAI ROAD WAN CHAI HK
Contact Person Kelly Zhang

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