Catwalk Safety Grating(Carbon Steel)

Specifications
Catwalk Safety Grating
Variety multitudinous: satisfies the different environment, the load , the span and the shape needs
railroad safety gratingHigh strength : the intensity and toughness far are higher than the cast iron, may use in the wharf , the air port and so on. the great span and the heavy load environment.Variety multitudinous: satisfies the different environment, the load , the span and the shape needs, may provide the size and the shape manufacture according to the customer.We produce three kinds of steel gratings , they are plain style steel grating , serrated style steel grating and bar type steel grating , they are widely used in steel structure
platforms , stair tread , sidewalk drainage and well cover etc. we can design and manufacture ,Standard steel grating and in customized shapes per clients requirements.

(1)    bearing bar (load bar ) specifications(mm) :the specification of plain type and serrated bearing bar is 20 *3 to 100*10 , the specification of section type is 25*5*3 , 32*5*3 , 40 *5*3. , 50*7*3, 55*7*4 ,
60*7*4 ,65*7*4,70*7*4 ,75*7*4 ,etc.

(2)    bearing bar pitch (centre to centre ) :12.5,15,25,30,30.16,32.5,34,40,41,41.25,45,50, 60, 60.32, 80 , 100mm, etc ,also be according to clients requirements , and 30 , 40 , 60 mm are recommended ,
America standard is available ,

(3)    cross bar pitch (center to centre ):38,50 , 76 ,100, 101.6mm,etc . , also according to clents requirements and 50 , 100mm, are recommended ,America standards is available .

(4)   material :mild steel (low carbon steel )or stainless steel

(5)   Surface treatment untreated ,panting or hot dipped galvanized ,

(6)   Steel grating standards :

A)   China :YB/T4001-1998

B)   USA :ANSI/NAAMM(MBG531-88)

C)   UK :BS4592-1987

D)   Australia :AS1657-1985

E)   Janpan :JJS .