812STRUCTURAL STEELS

812.01STRUCTURAL STEEL SHAPES, PLATES, BARS, AND FASTENERS

Conform to Charpy V-notch toughness requirements for structural steel for load carrying members in bridges when specified in the Plans.

.01 Structural Steel, All Types . Conform to AASHTO M 270 (ASTM A 709),

Grades 36, 50 50W, 70W, HPS70Wand 100W. When the supplementary requirement of this specification are specified, they exceed the requirements of ASTM A 36, A 514, A 572, A 588, and ASTM A 852. A) Structural Steel. Conform to AASHTO M 270 Grade 36, ASTM A 709 Grade 36, or ASTM A 36. B) High-Strength Low-Alloy Columbium-Vanadium Steels of Structural Quality. Conform to AASHTO M 270 Grade 50, or ASTM A 709 Grade 50, or ASTM A 572. C) High-Strength Low-Alloy Structural Steel with Minimum Yield Point to 4 Inches Thick. Conform to AASHTO M 270 Grade 50W, ASTM A709 Grade 50W, or ASTM A 588. D) Quenched and Tempered Low-Alloy Structural Steel Plate with 485 MPa Minimum Yield Strength to 4 Inches Thick. Conform to AASHTO M 270 Grade 70W, ASTM A 709 Grade 70W, or ASTM A 852. E) High-Yield-Strength, Quenched and Tempered Alloy Steel Plate, Suitable for Welding. Conform to AASHTO M 270 Grade 100/100W, ASTM A 709 Grade 100/100W, or ASTM A 514. F) High-Strength Low-Alloy, Quenched and Tempered Structural Steel Plate. Conform to ASTM A 709 Grade HPS70W.

.02 Hot-Rolled Carbon Steel Sheets a nd Strip of Structural Quality, Grade

33 (Corrugated Steel Plank for Bridge Floors). Conform to ASTM A 1011.

.03 Cold Rolled Carbon Steel Sheet of Structural Quality, Grade “D” (40

ksi) (Corrugated Steel Plank for Bridge Floors). Conform to ASTM A 1008.

.04 Steel Sheet Piling. Conform to AASHTO M 202 (ASTM A 328)

.05 Frames and Grates (for Catch Ba sins, Inlets, Outlets, and Manholes)

Use steel in these items that conforms to A36 or A572 to the following properties: Yield Strength 36 ksi. minimum Tensile Strength 58 ksi minimum Elongation in 2-inch specimen 21 percent minimum

.06 Hollow Structural Sections (HSS). Conform to ASTM A500

SECTION 813 MISCELLANEOUS METALS

813.01PINS AND ROLLERS. Use steel specified in the AASHTO LRFD Bridge

Design Specifications conforming to ASTM A108, ASTM A668 or ASTM A709, Grades 36, 50, or 50W.

813.02STEEL CASTING. Conform to AASHTO M 103, Grade 70-36 (ASTM A 27)

813.03EXPANDING STEEL MANHOLE RISERS. Use an approved type that expands

to fit tightly and rigidly within the existing frame.

813.04GRAY IRON CASTINGS. Conform to ASTM A48, Class 30-B

813.05MALLEABLE CASTINGS. Conform to ASTM A 47. Use the grade specified

813.06RIGHT-OF-WAY MONUMENTS. See section 726

813.07LEAD PLATES. Manufacture plates from lead conforming to ASTM B 29

813.08ALUMINUM

.01 Cast Aluminum Sand Castings. Conform to ASTM B 26, Alloy 356.0-T6

.02 Aluminum Alloy Permanent Mold Castings. Conform to ASTM B 108

.03 Aluminum Alloy Sheet and Plate. Conform to ASTM B 209

.04 Aluminum Alloy Extruded Bars, Rods, Shapes and Tubes. Conform to

ASTM B 221, Alloy 6061-T 6511 or Alloy 6063-T 6.

.05 Aluminum Alloy Rolled or Extruded Shapes. Conform to ASTM B 308,

Alloy 6061-T6.

.06 Aluminum Alloy Seamless Pipe. Conform to ASTM B 241, Alloy 6061-T

6 and 6063-T 6.

.07 Aluminum and Aluminum Alloy Bars, Rods, and Wire Bolts. Conform

to ASTM F 468, Alloy 2024-T 4. Give finished bolts a minimum anodic coating of 0.0002 inch.

.08 Aluminum Nuts. Conform to ASTM F 467, Alloy 6061-T6 or 6062-T 9

Give finished nuts a minimum anodic coating of 0.0002 inch.

.09 Welding Rods. Conform to AWS A5.10

813.09STEEL BOLTS, NUTS, AND WASHERS

.01 Carbon Steel Bolts and Nuts. Conform to ASTM A 307. Nuts conform

to AASHTO M 291.

.02 High-Strength Steel Bolts, Nuts, and Washers. Mark all bolts, nuts, and

washers according to the appropriate ASTM Specifications. Assure all bolts, nuts, washers and miscellaneous metals are kept dry, free from debris, and lubricated. If using galvanized bolts, nuts, or washers, measure th e thickness of the zinc coating. Take m easurements on the wrench flats or top of bolt head. Submit mill test reports for all steel used in the manufacture of the bolts, nuts, or