ARE YOU P SPECIFYING M - AISC

By Charles J. Carter, PETHE MATERIALS AND PRODUCTS USEDIN BUILDING DESIGN AND CONSTRUC-TIONare almost universally desig-nated by reference to an appropriateASTM specification. This simplifies thedesign and construction process becauseall characteristics of the product speci-fied are defined by simple reference toan approved standard. However, withdozens of ASTM specifications applica-ble in steel building construction aloneand several new ones now available, itcan be challenging to keep the standarddesignations in contract documents article (Part Two) is a summaryof the common ASTM specificationsused for structural plates, bars andother plate products in building designand construction. Part One (see January 1999 ModernSteel Construction) covered structuralmembers.

greater than 8” wide. Flat bars are rolled between horizontal and vertical rolls and trimmed to length by shearing or flame cutting on the ends only. Plates are generally produced using one of three methods: (1) sheared plates are rolled between horizontal rolls and trimmed to width and length by shear-ing or flame cutting on the edges and

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  Bars, Specifying, Cisa, Rolled

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