Galvanized stainless serrated bar steel grating stair treads
Bar grating types are specified by bearing bar spacing followed by cross rod spacing. In imperial measurements, bearing bar spacing is described in sixteenths of an inch. Therefore, Type 19 has bearing bar centers at 19/16 of an inch (or 1 3/16”). Type 15 has bearing bar centers at 15/16”. Type 11 is at 11/16” etc. The second number after the dash in the Type designation refers to the cross rod spacing. Cross rods are available in either 4” (standard) or 2” (special) spacings.
All bar grating Types may also be described in metric units. Again, the first number represents the bearing bar spacing on centers and the second number represents the cross rod spacing, both units measured in millimeters. Therefore, Type 30-102 Metric equals bearing bars at 30mm centers and cross rods at 102mm centers. This is the metric equivalent of Type 19-4.
Note: Although the special 2” (50mm) cross rod spacing does allow for less open space on the grating surface, it does not affect the load rating of the grating. The most economical and readily available choice for bar grating selection is Type 19-4 (Type 30-102 Metric).
U= Safe Uniform Load, in lbs per sq ft or kPa
C= Safe Concentrated Load in lbs per foot of grating width or kN per metre of grating width
D= Deflection in inches or mm
SS 316 Industrial Grating:
bearing bar:25x3mm, 25x4mm, 30x3mm
bearing bar pitch:40mm,
ISO 9001:2008
twisted bar pitch:50mm
SS 316 Industrial Grating:
bearing bar:25x3mm, 25x4mm, 30x3mm
bearing bar pitch:40mm,
twisted bar pitch:50mm
ISO 9001:2008
stainless steel grating platform introduction-- steel platform grating
Bearing bar type | Flat bar | I bar | Serrated bar | |
Cross bar type | Twisted bar | Round bar | flat bar | |
Production process | welded | Pressure locked | ||
Surface treatment | Self-colour | Galvanized | painted | |
application | Platform | walkway&floor | Trench cover | Steel stair treads |
Suspended ceiling | Barrier fence |
Stainless steel grating size | Bearing size(mm) | Cross bar pitch(mm) | Weight(kg/square meter) |
G253/30/50 | 25x3 | 50 | 25.7 |
G253/30/100 | 100 | 22.8 | |
G255/30/50 | 25x5 | 50 | 39 |
G255/30/100 | 100 | 36.2 | |
G323/30/50 | 32x3 | 50 | 31.3 |
G323/30/100 | 100 | 28.4 | |
G325/30/50 | 32x5 | 50 | 48.4 |
G325/30/100 | 100 | 45.5 |
Stainless steel grating size | Bearing size (mm) | Cross bar pitch (mm) | Weight(kg/square meter |
G353/30/50 |
35x3 | 50 | 33.6 |
G353/30/100 | 100 | 30.8 | |
G355/30/50 |
35x5 | 50 | 52.3 |
G355/30/100 | 100 | 49.5 | |
G403/30/50 | 40x3 | 50 | 37.7 |
G403/30/100 | 100 | 34.9 | |
G405/30/50 |
40x5 | 50 | 59 |
G405/30/100 | 100 | 56.2 |
Application: