Galvanized steel grating is steel bar according to a certain distance and cross bar arranged and welded into the middle of a square latice with an iron and steel products. It is mainly used on the industrial platform, walking flooring, drainge cover, well cover, oil platform, stair tread step etc.

• Easy To Install: Steel Stair Treads Can Be Welded Or Bolted To The Stair Frame, Making The Installation Process Relatively Simple. In Addition, Sizes And Shapes Can Be Customized To Suit Specific Application Requirements To Accommodate Different Stair Constructions.
• Corrosion Resistance: Steel Stair Treads Are Usually Hot-Dip Galvanized Or Other Anti-Corrosion Treatments, Giving Them Good Corrosion Resistance. This Makes It Suitable For A Variety Of Environments, Both Indoors And Outdoors And Maintains Its Appearance And Performance Over Time.

1. Bearing Bar (Load Bar) Specifications (mm): The specification of plain type and serrated type bearing bar is 25 x 3 to 100 x 8; The specification of I-section type is 25 x 5 x 3, 32 x 5 x 3, 38 x 5 x 3, 40 x 5 x 3, 50 x 5 x 3, 50 x 7 x 4, 55 x 7 x 4, 60 x 7 x 4, 65 x 7 x 4, 70 x 7 x 4, 75 x 7 x 4, etc.
2. Bearing Bar Pitch (center to center): 12.5, 25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mm etc, also be according to client's requirement and 30, 40, 60mm are recommended, America standard is available <1'' x 3/16'', 1 1/4'' x 3/16'', 1-1/2'' x 3/16'', 1'' x 1/4'', 1-1/4'' x 1/4'', 1 1/2'' x 1/4''(19-w-4) and so on. >
3. Material: Mild Steel (Low Carbon Steel) or Stainless Steel
4. Surface Treatment: Untreated, Painting or Hot DIP Galvanizing
5. Steel grating standards:
   • China: YB/T4001-1998
   • USA: ANSI/NAAMM (MBG531-88)
   • UK: BS4592-1987
   • Australia: AS1657-1985
   • Japan: JJS