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<br />Copyright 2002 AlA <br /> <br />MASTERSPEC Short Form <br /> <br />02/02 (R 05/06) <br /> <br />2.2 METALS <br /> <br />C. <br />D. <br />E. <br />F. <br />G. <br />H. <br />1. <br />J. <br />K. <br />L. <br />2.3 <br />A. <br /> <br />A. Metal Surfaces, General: Provide materials with smooth, flat surfaces without blemishes. <br /> <br />B. Recycled Content of Steel Products: Provide products with an average recycled content of steel <br />products so postconsumer recycled content plus one-half of preconsumer recycled content is not <br />less than [25] <Insert number> percent. <br /> <br />Steel Plates, Shapes, and Bars: ASTM A 361 A 36M. <br /> <br />Steel Tubing: [ASTM A 500 (cold formed)] [or] [ASTM A 513, Type 5 (mandrel drawn)]. <br /> <br />Rolled-Steel Floor Plate: ASTM A 7861 A 786M, rolled from plate complying with <br />ASTM A 36/A 36M or ASTM A 283/A 283M, Grade Cor D. <br /> <br />Wire Rod for Grating Crossbars: ASTM A 510 (ASTM A 510M). <br /> <br />Iron Castings: Either gray iron, ASTM A 481 A 48M, Class 30, or malleable lfon, <br />ASTM A 47/A 47M, unless otherwise indicated. <br /> <br />Uncoated, Cold-Rolled Steel Sheet: ASTM A 10081 A 1008M, either commercial steel, Type B, <br />or structural steel, Grade 25 (Grade 170). <br /> <br />Uncoated, Hot-Rolled Steel Sheet: ASTM A 1011/A lOl1M, either commercial steel, Type B, <br />or structural steel, Grade 30 (Grade 205). <br /> <br />Expanded Metal, Carbon Steel: ASTM F 1267, Class 1 (uncoated). <br /> <br />Woven-Wire Mesh: Intermediate-crimp, 2-inch (50-mm) woven-wire mesh, made from 0.135- <br />inch (3.5-111111) nominal diameter wire complying with ASTM A 510 (ASTM A 51 OM). <br /> <br />Aluminum Extrusions: ASTM B 221 (ASTM B 221M), Alloy 6063-T6. <br /> <br />MISCELLANEOUS MATERIALS <br /> <br />Cast-Metal Abrasive Nosings: Cast gray iron, Class 20, with an integral abrasive fInish. <br /> <br />1. [Available ]Manufacturers: <br /> <br />a. American Safety Tread Co., Inc. <br />b. Balco Inc. <br />c. Barry Pattern & Foundry Co., Inc. <br />d. Granite State Casting Co. <br />e. Safe-T-Metal Co. <br />f. Wooster Products Inc. <br />g. <Insert manufacturer's name.> <br /> <br />2. Apply bituminous paint to concealed bottoms, sides, and edges of units set into concrete. <br /> <br />B. Extruded Abrasive Nosings: Extruded-aluminum units with abrasive filler. <br /> <br />METAL STAIRS <br /> <br />05511 - 3 <br />