Steel Grating Standards

Definition of Steel Grating:

Steel grating is a kind of open steel member with its bearing bars & cross bars jointing at their intersections either by welding or by locking.

Our steel grating products are produced to meet the listed standards:
Steel Grating Standard	Steel Material Standard	Hot Dip Zinc Coating Standard
China Standard: YB／T4001—1998	China Standard: GB700—88	China Standard: GB/T13912-92
USA Standard: ANSI／NAAMM(MBG531—88)	USA Standard: ASTM(A36)	USA Standard: ASTM(A1 23)
UK Standard: BS4592—1987	UK Standard: BS4360(43A)	UK Standard: BS729
Australia Standard: ASl 657—1 992	Australia Standard: AS3679	Australia Standard: ASl650

Steel Grating Mark

Note:

1 .Bearing bar pitch: 30, 40, 60 mm, of which 30, 40 mm are recommended
2. Cross bar pitch:38, 50, 100 mm, of which 50, 100 mm are recommended
3. Sign of the shape of bearing bar:
F—Plain flat bar (may be omitted in the symbol of steel grating)
S—Serrated flat bar
I—I Shape flat bar
4. Sign of surface treatment
G—Galvanizing (may be omitted in the symbol of steel grating)
P—Painted
U—Untreated