Specifications include, but are not limited to: Steel Segment 1. Cast steel 0.75” thick by 5” wide and 11.22” long. 2. The top 3.125” of the segment shall be milled down to 0.625” thick. 3. The lower, inserted section shall remain 0.75” thick. Slots measuring 8.2 mm wide x 24.5 mm deep shall be milled in this portion to receive tungsten carbide inserts and braze matrix. 4. The segment shall be cast to a ‘horseshoe’ design. The upper ears shall measure 2.55” wide (each with a 0.50” x 2.00” clip on the outside edges). The cutout measures shall be 6.13” x 2.8125” with 1” rads in the two lower corners Tungsten Carbide Inserts 1. High shock resistant grade tungsten carbide. 2. Rooftop shape shall measure approximately 8.16mm thick, 24.25 mm tall and 25.9mm long. 3. Each insert shall weigh approximately 69 grams. 4. Each finished segment shall have 11 inserts (approximately 759 total grams of carbide insert material). 5. Tungsten carbide shall be 89% by physical weight – 100% virgin materials 6. Specific gravity shall be 14.35 to 14.6. 7. Hardness shall be 87.5 – 88.8 Rockwell A 8. Transverse rupture strength shall be 351,000 – 428,000 psi.
