Gratelok Carbon Steel Grating

Gratelox

GRATELOK™ GL40™ CARBON STEEL GRATING is constructed by inserting round transverse bars through punched rectangular bearer bars, then swaging (pressure deforming) the transverse bars on each side of bearer bars.  This produces a neat and rigid assembly with structural integrity.  The range is designed in accordance with DIN,  BS and NAAMM standards.

GRATELOK™ GL40™ CARBON STEEL GRATING is available with serrated load bearing bars for improved skid resistance in especially slippery conditions, or with non-serrated bearer bars for normal conditions.Bearer bars are 3mm and 4.5mm thick, with depths of 25mm, 30mm, 40mm, and 50mm. Heavy duty bearer bars of 6.00mm wide by 75mm or 100mm deep are available on request.

The standard bearer bar pitch of 43mm or 50mm provides effective spacing of 38.5mm (British Standard) or 45.5mm.  Extended spacing of bearer bars and transverse bars are available on request, viz. GL40™ 43/100, GL40™  86/50, GL40™  50/100, GL40™ 100/50, and GL40™  100/100.Standard panels are 2400mm by 1200mm.  Special sizes and customizing are available on request.

Finishes include mill (standard), coated (painted or powder coated), bitumenised, and galvanized.

GRATELOK™  GL40™  CARBON STEEL GRATING offers and economic grating solution for most environments.

gratelox carbon steel grating standard panelsgartelox unserrated and serrated

gratelox carbon steel grating fixing clip

GRATELOK®  GL40® CARBON STEEL GRATING

LOAD/SPAN TABLES

 

 



SIZE  CODE

 



APPROX  mASS

 

kg/m2

 

LOAD 


C  = kg/m


U = kg/m
2



BEARER BAR  SPAN (mm)

 


500

 


750

 


1000

 


1250

 


1500

 


1750

 


2000

 

 

TRANSVERSE  BAR

 

 


6.0mm


7.6mm

 


25/4.5/43/50

 


25/4.5/43/100

 


25.2

 


23.0

 


28.4

 


24.8

 


C U

 


1510

 


6050

 


1000

 


2685

 


756

 


1140

 


432

 


580

 


295

 


309

 

 

 


30/4.5/43/50

 


30/4.5/43/100

 


29.5

 


27.3

 


32.7

 


29.1

 


C U

 


2180

 


8700

 


1450

 


3870

 


1096

 


1980

 


870

 


1015

 


518

 


535

 


369

 


338

 

 


40/4.5/43/50

 


40/4.5/43/100

 


38.0

 


35.8

 


41.2

 


37.6

 


C U

 


3875

 


15485

 


2500

 


6880

 


1935

 


3870

 


1548

 


2475

 


1290

 


1270

 


873

 


800

 


672

 


528

 


50/4.5/43/50

 


50/4.5/43/100

 

 


49.6

 


46.0

 


C U

 


6048

 


24190

 


4032

 


10752

 


3027

 


6048

 


2415

 


3870

 


2016

 


2688

 


1728

 


1560

 


1305

 


1025


FOR  LOAD BEARING OF GL40
® 
86/50 AND  GL40® 86/100, HALF OF THE  ABOVE MASS LOADINGS APPLY

 


25/4.5/50/50

 


25/4.5/50/100

 


23.4

 


21.2

 


27.0

 


23.4

 


C U

 


1294

 


5186

 


857

 


2301

 


648

 


977

 


370

 


497

 


253

 


265

 

 

 


30/4.5/50/50

 


30/4.5/50/100

 


27.2

 


25.0

 


30.8

 


27.2

 


C U

 


1869

 


7457

 


1243

 


3317

 


934

 


1697

 


746

 


870

 


444

 


459

 


316

 


290

 

 


40/4.5/50/50

 


40/4.5/50/100

 


35.3

 


33.1

 


38.3

 


34.7

 


C U

 


3321

 


13273

 


2211

 


5897

 


1659

 


3317

 


1327

 


2121

 


1106

 


1089

 


748

 


686

 


576

 


453

 


50/4.5/50/50

 


50/4.5/50/100

 

 


45.9

 


42.3

 


C U

 


5184

 


20734

 


3456

 


9216

 


2595

 


5184

 


2070

 


3317

 


1728

 


2304

 


1481

 


1337

 


1119

 


879


FOR  LOAD BEARING OF GL40
® 
100/50 AND  GL40® 100/100, HALF  OF THE  ABOVE MASS LOADINGS APPLY

suggested rangeSuggested Range

IMPORTANT NOTES

  1. U, kg/m2, maximum allowable unfactored uniformly distributed loading for that stated span
  2. C, kg/m, maximum allowable unfactored centre line load per metre
  3. Loads determined by maximum deflection of span/200 or 10mm
  1. For serrated grating reduce tabulated allowable loads by 10% and maximum span per load category by 3.5%
  2. All table loadings to be taken as nominal and should not be used as guaranteed values
  3. Appropriate safety factors must be applied by the designer
  4. Galvanising will increase stated mass per square metre by approximately 8 – 10%
  5. Banding will increase mass by approximately 6% depending on grating
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