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Steel Grating: Flat Type, Serrated Type, I Shape Type

Steel Grating is manufactured from ASTM A-1011 low carbon steel and is available in three categories, Welded Steel Grating, Dovetail Pressure Locked Grating, and Swage Locked Grating. All three products are available for bearing bar spacing ranging from 30 mm to 11 mm on center and with cross bars at either 100 mm or 50 mm on center. Each product is available for the standard plain or serrated surface. The surface treatment of steel grating can be hot dipped galvanized, mill finish or painted.

Raw Material: Bearing bar and twisted square bar: Q235A low carbon steel or stainless steel grating.


  • Welded steel grating.
  • Dovetail pressure locked grating.
  • Swage locked grating.


  • Strong steel structure make it have a high carrying capacity.
  • Hot-dip galvanized surface has good corrosion and rust resistance.
  • Light weight structure is easy to lifting.
  • Serrated surface has the character of safety and anti-slip.
  • Ventilation, lighting, heat, explosion-proof.

Finish treatment:

  • Hot dipped galvanized.
  • Mill finish.
  • Painted.

Surface type:

  • Flat type.
  • Serrated type.
  • I shape type (According to requirement made different protective treatment).

Four different types of steel grating on the black background.
Flat type - the most common steel grating.
Serrated type - better anti slip effect.
I type - lightweight, economic and practical.

Fixation of steel grating
Two methods of fixing the steel grating: welded and installation folder.
Welded fixation. For without removal of permanent, could directly welded it on the supporting material. On the specific location, namely on the first root of board each corner, the welding length more than 20 mm, the height no less than 3 mm.
Installation folder. It doesn't destroy zinc coating and is easy to assemble and disassemble. Each board should be used at least four installation folder. It is better to installing several installation folder for large plates. The specific choice of table:

Type A: Consists of plate with hook on the above, a plate with teeth at below and a M8 hexagon bolt.
Type B: Consists of plate with hook on the above ( one of the two hook can be enclosed with steel grating), a plate with teeth at below and a M8 hexagon bolt.
Type C: Consists of plate with hook on the above and a M8 hexagon bolt which can welded support component.

Three sets of steel grating installation folder and a installation picture of steel grating.

Application of steel grating

  • All kind of plant, such as power plants, chemical plants, steel plants, oil plants, paper-making plants, and so on. Used as platforms.
  • All kind of shipping, used as platform of ramp, channels, pumping stations and engine room.
  • All kinds bridge, such as side road of railway bridge, suspension bridge, trestle bridge. Used as panel shop.
  • Used as drain covers and road fence at municipal engineering and road.
  • Other uses, such as oil platform, wharf road, washing platform, tower platform and building fence, and so on.

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