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Steel Grating Specifications Your Position : Steel Grating > News > Steel Grating Specifications
Steel Grating Specifications
Released time:9/6/2011 Click:

Steel Grating Specifications

Steel grating
consists of lattice, or mesh, of welded steel bars and is typically used to cover drains or pipe outlets or to support floors and elevated walkways. There are various standards that apply to the specification of steel grating in North America.

Load
Typically, the load bearing bars of a steel grating should be rectangular and of sufficient depth and thickness to support the expected load. According to one Canadian specification, steel gratings should be capable of supporting a load of nearly 16 tons over a surface area of 85 square inches.

Pitch
The distance between centers of the bearing bars, or pitch, of steel grating varies according to the application. A pitch of 1 3/16 inch is common in industrial applications, but pitches ranging from 15/16 inch to 1/2 inch may also be used at the discretion of the architect or engineer.

Materials
The steel in the bearings bars should conform to ASTM International (formerly American Society for Testing and Materials) standard A1011 Hot Rolled Carbon Steel Sheet and Strip. It should be cut, fitted and welded in accordance with National Association of Architectural Metal Manufacturers (NAAMM) tolerances and welding standards.











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