Introduction to Compound Steel Grating
Aug 20,2025
Compound steel grating is composed of checkered plate on sealed surface & steel grating with certain spanning capability.
Compound steel grating is formed of any type of steel grating and checkered plate in different thicknesses. The type JG323/40/100, JG253/30/100 and JG323/60/100 are generally used as base & the checkered plate with 3 mm thickness is used as sealing plate. Sometimes checkered plate with thickness of 4 mm, 5 mm or 6 mm is also used as sealing plate according to customers' requirements.
As thermal stress may cause shape distortion after hot-dip galvanizing treatment, especially when choosing large spacing grating, it's not easy to flatten. So special attention should be paid when choosing grating types.
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