We specialize in manufacturing and exporting many kinds of steel gratings with the best quality, competitive price and faster delivery time. Such as steel mill black and hot dip Galvanizind steel grating,flooring walkway,platform,stair tread,well cover,trench cover,checkered gratings, grating ladder,fencesand handrail,etc for construction project, oil project, seaport, power plant, water plant, defense project, chemical factory and so on.
The steel grating can be classified into Plain Style Steel Grating, Serrated Style Steel Grating andI Bar Type Steel Grating, etc,They are widely used in steel structure platforms, stair treads, sidewalks, drainages and well covers etc. We can design and manufacture standard steel grating as per client's requirements.
1) 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 Isection 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, 15,25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mmetc, and 30, 40, 60mm are recommended,
3) Cross Bar Pitch (center to center):
38, 50, 76, 100, 101.6mm etc, and 50, 100mmare recommended, America standard is available.
4) Material:
Mild Steel (Low Carbon Steel) or Stainless Steel
5) Surface Treatment:
Untreated, Painting or Hot dip Galvanizing
6) 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.
Item No. | Bearing Bar Pitch | Cross Bar Pitch | Specification of bearing bar loadwidth×thickness | ||||||
20×3 | 25×3 | 32×3 | 40×3 | 20×5 | 25×5 | ||||
1 | 30 | 100 | G203/30/100 | G253/30/100 | G323/30/100 | G403/30/100 | G205/30/100 | G255/30/100 | |
50 | G203/30/50 | G253/30/50 | G323/30/50 | G403/30/50 | G205/30/50 | G255/30/50 | |||
2 | 40 | 100 | G203/40/100 | G253/40/100 | G323/40/100 | G403/40/100 | G205/40/100 | G255/40/100 | |
50 | G203/40/50 | G253/40/50 | G323/40/50 | G403/40/50 | G205/40/50 | G255/40/50 | |||
3 | 60 | 50 | G253/60/50 | G253/60/50 | G403/60/50 | G205/60/50 | G255/60/50 | ||
Item No. | Bearing Bar Pitch | Cross Bar Pitch | Specification of bearing bar loadwidth×thickness | ||||||
32×5 | 40×5 | 45×5 | 50×5 | 55×5 | 60×5 | ||||
1 | 30 | 100 | G325/30/100 | G405/30/100 | G455/30/100 | G505/30/100 | G555/30/100 | G605/30/100 | |
50 | G325/30/50 | G405/30/50 | G455/30/50 | G505/30/50 | G555/30/50 | G605/30/50 | |||
2 | 40 | 100 | G325/40/100 | G405/40/100 | G455/40/100 | G505/40/100 | G555/40/100 | G605/40/100 | |
50 | G325/40/50 | G405/40/50 | G455/40/50 | G505/40/50 | G555/40/50 | G605/40/50 | |||
3 | 60 | 50 | G325/60/50 | G405/60/50 | G455/60/50 | G505/60/50 | G555/60/50 | G605/60/50 |
steel grating