Steel Grating Cover

Widly used on construction project,oil project,seaport,power plant,water plant, defense project,chemical factory and so on. Steel grating is made by welding with flat steel and bars with certain distances.it goes through cutting,opening,edging and other process. Features:Durability:before leaving factory,it has undergone corrosion prevention treatment of hot-dip galvanizing;therefore,it has strong capability in bearing impact and stress.Modern style:beautiful figure,canonical design,good ventilation and lighting;people will enjoy its whole,smooth and modern style. Portable structure:material saving,light structure and easy to be hoisted for installation.Prevent dirty objects accumulation:rain water,ice snow and dust. Material:Mild Steel (Low Carbon Steel) or Stainless Steel Surface Treatment:Untreated,Painting or Hot dip Galvanizing Steel grating standards:A)China:YB/T4001-1998 B)USA:ANSI/NAAMM (MBG531-88)C)UK:BS4592-1987 D)Australia:AS1657-1985 E)Japan:JJS. Bearing Bar (Load Bar) Specifications (mm):The specification of plain type and serrated type bearing bar is 20 x 3 to 100 x 10;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. Bearing Bar Pitch (center to center):12.5,15,25,30,30.16,32.5, 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 Cross Bar Pitch (center to center):38,50,76,100, 101.6mm etc,also be according to client's requirement and 50,100mm are recommended, America standard is available.