Introduction

I-shaped steel grating is made of I-shaped flat steel (flat steel is thick on both sides and thin in the middle) and twist steel (also called twisted square steel, generally 5*5, 6*6, 8*8 square steel, twisted steel bars) Arranged crosswise and welded into a metal product with a square grid in the middle, the I-shaped steel grating is mainly used to make ditch covers, steel structure platform plates, steel ladder treads, etc. It has ventilation, lighting, and heat dissipation. Anti-skid, explosion-proof and other properties.

Manufacturing process

1.Material

2.Pressure welding

3.Cutting

4.Welding of ends bar

5.Hot dipped galvanizing

6.Final shipment

Sign of steel bar grating

Materials

Carbon steel(ASTM A36)

Stainless steel 304  

Stainless steel 316

Aluminum alloy

Size

1.Bearing bar pitches may be 20, 22, 30, 32.5, 34.3, 40, 60mm, of which 30mm and 40mm are recommended. 

2.Cross bar pitch may be 38, 50, 60 to 100mm, of which 50mm and  100mm are recommended.

Sign of surface treatment

1.G-Hot Dip Galvanized 

(ASTM A123/A123M-09: Standard specification for zinc (hot-dip galvanized) coatings on iron and steel products

BS EN ISO 1461:1999: Hot dip galvanized coatings on fabricated iron and steel articles—Specifications and test methods)

2.P-Painted

3.U-untreated

Type of grating

1.W:Press-welded

2.L:press-locked

Installation of steel grating

1.Welding is advisable for those of permanent use without being removed/dismantled. Just weld it onto the support with specific location at the first piece of flat steel of each corner of the plate. Fillet weld is required with weld length not less than 20mm and height not less than 3mm. Daxing Brand Installation Clips, which will not destroy the zinc coat and be easy to remove, are available, Each ganel shall use at least four installation clips. 

2.For the larger panels preferably some more clips are required to fix to the available support members. Refer to the following table when selecting installation clips:

Type A-comprising a top clip with double saddle a lower clip with teeth and a M10(or M8).

Type B-comprising a top clip with duble saddle(of which one saddle can secure the two bear bars of abjacent panels),a lower clip with teeth and a M10(or M8).

Type C-comprising a top clip with double saddle and a M10(or M8).

Applications

Industrial platform

Bridge Flooring

Trench covers

Walkways

Ramps

Catwalks

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