02540.60 1119 Section 02540 - Forg ings, Shafting, Castings, and Nonferrous Materials Description
02540.00 Scope - This Section includes the requirements for forgings, shafting, castings, and
nonferrous materials except those used in potabl e water systems. For potable water system requirements, see Sections 02470, 02475, 02480, and 02490. Materials
02540.10 Steel Forgings - Steel forgings shall conform to the following:
Carbon steel forgings .................................................... AASHTO M 102 ( ASTM A668), Class C Alloy steel forgings ........................................................ AASHTO M 102 ( ASTM A668), Class G
02540.20 Steel Shafting - Steel shafting shall be cold-finished and shall conform to AASHTO M 169
(ASTM A108), Grades 1016 - 1030, inclusive.
02540.30 Steel Castings - Steel castings shall confor m to the following:
Carbon steel castings ............................................... AASHTO M 103 ( ASTM A27), Grade 70- 36 Alloy steel castings ................................................ AASHTO M 163 ( ASTM A743), Grade CA -15 Castings shall be true to pattern in form and dimensions, free from pouring faults, sponginess, cracks, blow holes and other defects in positions affecting their strength and value for the service intended. Allowance will be made in dimensions for reasonable pattern draft. Castings shall be boldly filleted at angles and the arises shall be sharp and perfect. Sandbl ast castings or otherwise effectively clean of scale and sand to present a smooth, clean and uniform surface.
02540.40 Iron Castings - Iron castings shall conform to the following:
• Gray Iron Castings - AASHTO M 306. • Ductile Iron Castings - AASHTO M 306. In addition to the specified test coupons, test specimens from parts integral with the castings, such as risers, shall be tested for castings weighing over 1,000 pounds. • Malleable Iron Castings - ASTM A47, Grade 32510. Finish iron castings according to 02540.30. Clean iron castings according to 02540.30.
02540.50 Nonferrous Materials - Nonferrous Material s shall conform to the following:
Bronze castings ............................ AASHTO M 107 ( ASTM B22) Copper Alloy UNS No. C91100 Copper alloy plates ..................... AASHTO M 108 ( ASTM B100) Copper Alloy UNS No. C51000
02540.60 Acceptance - Acceptance of forgings, shafting, castings, and nonferrous Material s will be
according to 00165.35 and this Section.
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