Patent ID: 9140389
Filing Date: 2015-09-22
Classification: B22D,B22F,B82Y,C01B,C22C,F16L,Y10T

Abstract:
1. A graphene-based steel tube, pipe, or riser, comprising: (a) the graphene-based steel having a chemical composition including graphene, the graphene providing a carbon content between 0.01 and 21.0%, wherein all percentages are by weight relative to a total weight of the graphene-based steel, the graphene in a form of nanosheets with a surface area from 60 to 2630 m (b) a microstructure formed by the graphene nanosheets and one of ferrite, austenite, iron carbide (Fe (c) a tubular geometry with a wall thickness between 800 nm and 80 mm, and an outer diameter ranging between 10 and 5000 mm; and (d) a shot peened surface derived from graphene shot.