Specifications include, but are not limited to: The State of Vermont Office of Purchasing & Contracting on behalf of Vermont, Maine and New Hampshire is seeking to establish purchasing agreements with one or more companies that can provide Snow Plow Blade Cutting Edges. HARDENED SNOW PLOW BLADE CUTTING EDGES 1. Blade: A. The blade will be 1 thick AISI 1074 quality steel. B. Punched or drilled square bolt holes will be 11/16 diameter. The location and spacing of the holes will be as designated on the diagrams provided. C. The center of the holes shall be in line within 1/32 of the established centerline. 2. Hardness: A. Blades will be selectively hardened front and back a primary and secondary hardness. B. The hardening pattern will start 5/8 +/- 1/8 above the bottom edge of the blade with a 3 1/2 width over the length of the blade. C. Primary hardness, Rockwell C 62 +/- 5, for a depth of 1/8 +/- 1/32 at the high point of the pattern. D. Secondary hardness, Rockwell C 50 +/- 5, for a minimum depth of 1/32 at the high point of the pattern. REGULAR STEEL SNOW PLOW BLADE CUTTIGN EDGES 1. Blade: A. The blade will be 5/8 thick unless otherwise specified AISI C1090 quality steel. B. Punched or drilled square bolt holes will be 11/16 diameter. The location and spacing of the holes will be as designated on the diagrams provided. C. The center of the holes shall be in line within 1/32 of the established center line.
