Gold Member Since 2011
Audited Supplier
Nanjing OTER Steel Gratings Manufacturing Co., Ltd.

Steel Grating, Grating, Steel Grid manufacturer / supplier in China, offering Compound Steel Grating, Customized Steel Grating Platform for Industrial Project, Hot Dipped Galvanized Steel Pipe Tube Handrail and so on.

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Compound Steel Grating

Purchase Qty.:
1-9 10-19 20-39 40+
FOB Unit Price: US $880 US $870 US $860 US $850
Purchase Qty. (Tons) FOB Unit Price
1-9 US $880
10-19 US $870
20-39 US $860
40+ US $850
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Production Capacity: 20, 000 Tns/Year
Transport Package: Normal Export Packing or Customerized
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: As customer′s request
  • Application: Steel Structure Walkway, Foot Pedal, Drain Cover, Platform, Floor
  • Manufacturing Method: Machine Welding & Hand Made
  • Material Standard: Low Carbon Steel (Cn: Q235, Us: A36, UK: 43A)
  • Thickness of Checkered Plate: 3mm, 4mm, 5mm or 6mm
  • Ventilation: Excellent
  • Maintenance: Maintenance-Free
  • Color: Silver/Black
  • Specification: As request from customers
  • HS Code: 7389000000
  • Certification: CE, GOST-R, Hse, ISO
  • Shape: I / Flat / Serrated Shape
  • Material: Carbon Steel/Stainless Steel
  • Galvanization Standard: GB/T13912, ASTM (A123), BS729
  • Safety: Anti-Skid
  • Property: Good Rust-Proof
  • Life Expection: Durable
  • Trademark: OTER
  • Origin: China
Product Description
1. Compound steel grating is a combination of the steel grating bearing a certain span and the surface-sealed checkered grating. It is combined by any type of steel grating and the checkered grating with different thicknesses of 3mm, 4mm, 5mm or 6mm. 

2. Four types of bearing bars: I type, plain type, serrated I type, serrated type. 
Compound Steel Grating
3. Process of production: 
Nanjing OTER steel grating is made by carbon or mild steel of certain sizes through the processing of slit cutting, serration-making, press welding, inspecting before galvanization, galvanizing, checking before packing, etc. 

4.Compound steel grating after galvanization is easily deformed because of heating. It is difficult to make flat steel gratings of large specifications, so pay attention to choosing proper specifications.

5. Materials: 
Mild carbon steel with a variety of grades; Also customized steel.  
6. Advantages: 
Steel grating is of light weight, good strength, large carrying capacity and can save materials and cost. It offers good ventilation of light and wind, a modern sense, aesthetic appearance and anti-skid safety. It is also easy to clean, easy to installation and durable for uses. 

7. Specifications of steel gratings: 
1Bearing bar20X5, 25X3, 25X4, 25X5, 30X3, 30X4, 30X5, 32X3, 32X5, 40X5, 50X4...75X8mm, etc. 
2Bearing bar pitch20, 25, 30, 32.5, 34.3, 40, 50, 60, 62, 65mm, etc. 
3Cross bar5X5, 6X6, 8X8mm (twisted bar or round bar)
4Cross bar pitch40, 50, 60, 65, 76, 100, 101.6, 120, 130mm or as customers’ requirement. 
5Thickness of checkered plate3mm, 4mm, 5mm or 6mm
6Surface treatmentUntreated, hot DIP galvanized, cold DIP galvanized, painted, powder coated, or as customers’ requirement. 
7Flat bar typePlain, Serrated (tooth-like), I bar (I section)
8Material standardMild carbon steel (CN: Q235, US: A36, UK: 43A)
9Galvanization standardCN: GB/T13912, US: ASTM (A123), UK: BS729
10Steel grating standardsA. China: YB/T4001-1998
C. UK: BS4592-1987
D. Australia: AS1657-1988
E: Japan: JJS

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