... .ShapeShaftsBlocks & BarsRingsDiscs & HubsSleevesDia. (inch)≤37.4≤39Od≤196≤110≤59Length (inch)≤433≤433≤20≤19≤78Weight (MT)≤20≤25≤8≤20≤10MaterialAlloy steel: Nitralloy; Maraging ... , D3, D5, H11, H12, H13, M2, M50 etc.High-temperature Alloy: 15-5PH; 15-7MO; 17-4PH; Invar; Kovar; Rodar etc ... .Nickel Alloy: Nickel 200, 201, 204; Monel 400, 402, 403,404 etc ...