Laserfiche WebLink
1 B. Comply with the following standards, as pertinent. , <br /> 2 <br /> 3 1. Steel plates, shapes, and bars: ASTM A36. <br /> a <br /> 5 2. Steel plates to be bent or cold-formed: ASTM A283, grade C. <br /> 6 <br /> 7 3. Steel tubing (hot-formed, welded, or seamless): ASTM A501. ' <br /> 8 <br /> 9 4. Steel bars and bar-size shapes: ASTM A306, grade 65, or ASTM A36. <br /> 10 <br /> 11 5. Cold-finished steel bars: ASTM A108. ' <br /> 12 <br /> 13 6. Cold-rolled carbon steel sheets: ASTM A336. <br /> 14 '15 7. Galvanized carbon steel sheets: ASTM A526, with G90 zinc coating in accordance <br /> 16 with ASTM A525. <br /> 17 <br /> 18 8. Stainless steel bars, plates, structural shapes, ASTM A276, Type 304. ' <br /> 19 <br /> 20 9. Stainless steel sheets: AISI type 302 or 304, 24 gauge, with Number 4 finish. <br /> 2, i22 10. Aluminum plates, shapes, and bars, 6061-T6 or 6063-T6 alloy, mill finish unless <br /> 23 otherwise specified. <br /> 24 <br /> 25 11. Grey iron castings: ASTM A48, Class 40. ' <br /> 26 <br /> 27 12. Malleable iron castings: ASTM A47. <br /> 28 <br /> 29 13. Steel pipe: ASTM A53 or A120, Schedule 40, black finish unless otherwise noted. <br /> 30 <br /> 31 14. Concrete inserts: <br /> 32 <br /> 33 a. Threaded or wedge type galvanized ferrous castings of malleable iron <br /> 34 complying with ASTM A27. ' <br /> 35 <br /> 36 b. Provide required bolts, shims, and washers, hot-dip galvanized in accordance <br /> 37 with ASTM A153. <br /> 38 '39 2.02 FABRICATION <br /> 40 <br /> 41 A. Except as otherwise shown on the Drawings or the approved Shop Drawings, use materials <br /> 42 of size, thickness, and type required to produce reasonable strength and durability in the <br /> 43 work of this Section. <br /> 44 <br /> 45 B. Fabricate with accurate angles and surfaces which are true to the required lines and levels, <br /> 46 grinding exposed welds smooth and flush, forming exposed connections with hairline joints, <br /> 47 and using concealed fasteners wherever possible. <br /> 48 <br /> 49 'as C. Prior to shop painting or priming, properly clean metal surfaces as required for the applied <br /> so finish and for the proposed use of the item. <br /> 51 <br /> 52 <br /> METAL FABRICATIONS <br /> 062794 05500-2 , <br />