505 ALASKA 2020 SECTION 718
718-2.01 SCOPE. Steel forgings from which pins, rollers, trunnions or other forged parts are to be
fabricated.
718-2.02 GENERAL REQ UIREMENTS. Meet the dimensions shown on the Plans and the
following specifications.
1.Alloy Steel Forgings (general industrial use): AASHTO M 102, Class G.
2.Carbon Steel Forgings (general industrial use): AASHTO M 102, Class C.
3.Pins and Rollers
a.More than 7 inches in Diameter : Annealed carbon- steel forgings meeting AASHTO M 102, Class C.
b.7 inches or Less in Diameter : Either annealed carbon- steel forgings meeting AASHTO M 102, Class C or cold finished carbon- steel shafting meeting AASHTO M 169, Grade 1016 to 1030, inclusive, with a minimum Rockwell Scale B hardness of 80. Material not meeting the specifications for hardness may be accepted provided it develops a minimum tensile strength of 66,000 psi and a minimum yield point of 33,000 psi.
4.Threads for Pins : ANSI B 1.1, Class 2A coarse thread series. Thread pin ends, having a diameter of 1- 3/8 inch or more, 6 threads to the inch.
718-2.03 CERTIFICATI ON. Submit 5 copies of a certified mill test report covering chemical and
physical tests for the material in each shipment. 506 ALASKA 2020 SECTION 719 STEEL, GRAY -IRON AND MALLEABLE -IRON CAST INGS
719-2.01 SCOPE. Steel, gray -iron and malleable- iron castings intended for various uses as
shown on the Plans.
719-2.02 GENERAL REQ UIREMENTS. Meet the size and dimensions shown on the Plans, be
true to pattern in form, and conform to the following specifications. Carbon Steel Castings AASHTO M 103, Grade 65- 35 Chromium Alloy Steel Castings AASHTO M 163, Grade CA -15 Gray -Iron Castings AASHTO M 306 and AASHTO M 105, Class 35B Malleable- Iron Castings ASTM A47, Grade 32510
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Source: Alaska Standard Specifications for Highway Construction, 2020 Edition. Pages 533–533 of 584. View official source ↗