STEEL GRATING

Material

                   Carbon Steel Or Stainless Steel

Application

             Untreated, Painting or Hot dip Galvanizing,Etc.

Advantage

High Security/Corrsion Resistance/High Tensile Strength

Surface Treatment

Electro Galvanized, Hot-dipped Galvanized

Standard 

A) China: YB/T4001-1998

B) USA: ANSI/NAAMM (MBG531-88)

C) UK: BS4592-1987

D) Australia: AS1657-1985

Shape Of Bearing Bar

Plain Type (may be omitted in the symbol of steel grating), 

Serrated  Type and I-Shape Type 

Thickness

3mm,5mm are the common

Height

25mm,30mm,32mm,40mm,45mm,50mm,60mm

Bearing Bar Size

20*3mm, 20*5mm 25*3mm,25*5mm,32*3mm,32*5mm,35*3mm,

35*5mm,40*3mm,40*5mm,45*3mm,45*5mm,50*3mm,50*5mm,

55*5mm,60*5mm,65*5mm 

Bearing Bar Pitches 

12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 34.3, 35, 40,41,60mm. 

US standard: 1"x3/16", 1 1/4"x3/16", 1 1/2"x3/16",  1"x 1/4", 

1 1/4"x 1/4",1 1/2"x 1/4" etc

Cross Bar Pitches 

38, 50, 60,100mm, of which 50mm & 100mm are recommended