Specifications

steel grating
Bearing bar pitch: 30, 40, 60mm
Cross bar pitch; 50, 100mm
Plain, Serrated, I-shape
ISO9001 certificate

We also provide stair ladder, compound steel grating, drainage pit/trench cover, and railing & stanchion. Special specifications can be produced by customer’s requirements.

Specifications of Grating steel 
1)The shape of bearing bar: Plain type (may be omitted in the symbol of steel grating), Serrated type and I-Shape type

2)Bearing bar pitches can be 12.5, 15, 20, 30, 30.16, 32.5, 34.3, 40, 60mm, of which 30mm & 40mmare recommended. 
3)Cross bar pitches can be 38, 50, 60,100mm, of which 50mm & 100mm are recommended. 

4)Surface treatment: Hot-dip galvanizing, paint or other anti-corrosive coatings are available, of which hot-dip galvanizing is generally recommended. 
5)Material: Q235 in line with GB/T700 steel 
6)Application: flooring, catwalk, mezzanines/decking, stair tread, fencing, ramp, dock, trench cover, drainage pit cover, maintenance platform, pedestrian/crowded pedestrian, factory, workshop, motor rooms, trolley channel, heavy loading area, boiler equipment and heavy equipment area, etc 
7)Tolerance 
The allowed deviation of length is +0/-5mm, while the allowed deviation of width is +/-5 mm. 
The non-perpendicularity of bearing bar is allowed no more than 10% of width of bearing bar. 
Cross bar surface should not surpass bearing bar surface 1mm, beginning & end of cross bar should not surpass the end surfaces of two sides of grating 2mm. 

1.the machine and producing department

2.specification

 

3.packing

4.our products

 

5.certification

 

my card(if you want more informations ,pls contact with me)