Specifications

galvanized steel flat bar graating anti corrosion for building
material:low carbon or stainless steel bar
make to order,factor

(1)material

low carbon steel bar,stainless steel bar

 

(2)surface treatment

hot dip galvanized,untreated,PVC coated

 

(3) 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, 

 

(4) 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,

  

(5) 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

 

specification of galvanized steel flat bar grating

No	Item	Description
1	Bearing bar	20x5, 25x3, 25x4, 25x5, 30x3, 30x4, 30x5, 32x3, 32x5, 40x5, 50…75x8mm, etc.
2	Bearing bar pitch	25, 30, 30.16, 32.5, 34.3, 40, 50, 60, 62, 65mm, etc.
3	Cross bar	5x5, 6x6, 8x8mm (twisted bar or round bar)
4	Cross bar pitch	40, 50, 60, 65, 76, 100, 101.6, 120, 130mm or as customers’ requirement.
8	Galvanizing standard	CN: GB/T13912, US: ASTM (A123), UK: BS729

 

 (6) Steel grating standards:

A) China: YB/T4001-1998

B) USA: ANSI/NAAMM (MBG531-88)

C) UK: BS4592-1987

D) Australia: AS1657-1985

 

(7)application

flooring steel gratings,stair treads,drain covers,security screen,manhole covers,mezzanine flooring,shelving

 

trench covers

 

(8)galvanzied steel flat bar grating feature

 

(1)Attractive appearance:Simple outline.silver colour,and modern.

(2)Optimum water draining:Water leakage area reaches 83.3%,which is more than two times larger  than that of cast iron.

(3)Hot-dip galvanizing:Good antirust performance,maintenance free and replacement free.

(4)Design of preventing theft:The cover is connected with the frame by gemel,which ensures protection against theft,safety,and convenient opening.

(5)Saving investment:With large span,the cost is lower than that of cast iron when under heavy load.And the replacement expenses in case of theft and crushing will be saved.

(6)High strength:With strength:With strength and toughness far higher than those of cast iron,it can be used in the environment with large span  and heavy load,such as the wharf and the airport.

(7)Many specifications available: The requirement of different environments,loads,spans,sizes and shapes can be satisfied.