Type "DT" Steel Bar Grating

  "DT" STEEL BAR GRATING

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CERTIFICATIONS OF STEEL BAR GRATING

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  Steel Bar Grating is manufactured from ASTM A-1011 mild carbon steel and is available in three distinct products, type "W" Welded Bar Grating, type "DT" Dovetail Pressure Locked Grating, and type "SL" Swage Locked Grating. All three products are available with bearing bar spacing ranging from 19/16" (1-3/16") to 7/16" on center and with cross bars at either 4" or 2" on center. Each product is available with the standard plain or optional serrated surface, and each product is available with a bare steel, painted or galvanized finish. The following Steel Load Tables provide detailed product specification information related to all three products.

Type "DT" steel gratings have deep rectangular cross bars and are manufactured by inserting pre-punched bearing bars and cross bars into an “eggcrate” configuration and deforming the cross bars under intense hydraulic pressure. The deep cross bars on type "DT" gratings make them popular for architectural applications such as sun shades and infill panels with the deeper cross bar serving as a distinct architectural accent.

Various Shape Type And Applications of the Bar Grating :

Bar Grating Applications:

Steel Bar Grating Sepecifications

1) Material: Mild Steel Q235  or Stainless Steel such as ss304 ss304L ss316 ss316L...

2) Surface Treatment: Hot dip galvanized , Painted , Untreated.

3) Shape of bearing bars: Plain bar style , Serrated bar style , I Bar style

4) Market: USA CA , Middle East ---Kuwait, UAE, Saudi Araia; Australia, Europe and Southeast 

Special design for certain market:

1) Bearing Bar (Loading 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, 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 mm etc, also be according to client's requirement and 30, 40, 60mm are recommended,

America standard is available :1'' x 3/16'', 1 1/4'' x 3/16'', 1-1/2'' x 3/16'', 1'' x 1/4'', 1-1/4'' x 1/4'', 1 1/2'' x 1/4''(19-w-4),(19-w-2) and so on.

3) 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,

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: JIS.

Steel bar grating pictures

Installation of steel bar grating:

1.Welding & using saddle clips are two ways for installation of grating. The welding is suitable for those places where there is no need to move ,for instance,the flooring around the machines. However,using saddle clips are featuring in easy installation & saving zinc layer.

2.Regarding welding installation, angle welding would used at the first bearing bar of every corner,which the welding length is no less than 20mm,&the height is no less than 3mm.

3.Saddle clip composed of a top plate,a hold down & a M8 bolt, is suitable for all kinds of steel gratings installation.

4.Regarding saddle clip installation, at last four sets of saddle clips would be used in one pc grating.It would be better using more in the staddle for those gratings with a bigger span.

Steel Bar Grating Package and shipping