▎ 摘　　要

NOVELTY - Producing nanoscale graphene, comprises (a) mixing an interlayer relaxation graphite and an impact beads at weight ratio of 1:0.5-1.5, (b) adding the mixed mixture into a striking plate together with compressed air having compression pressure of 100-1000 kg/cm2, and continuously bombarding the mixture, and (c) selecting nanoscale particles. The impact bead: includes zirconium, artificial diamond, aluminum nitride, nickel, and/or nickel-iron alloy; and has size of 0.5-3 phi mm. USE - The graphene is useful in graphene composite powder resin for coating surface of steel pipe, steel pipe pile and coated water steel pipe (all claimed). ADVANTAGE - The graphene composite powder resin has excellent rust resistance and abrasion resistance and produces at low cost, and improves long-term usability of steel pipe and steel pipe pile. The method production of nanoscale graphene is economical. DETAILED DESCRIPTION - Producing nanoscale graphene, comprises (a) mixing an interlayer relaxation graphite and an impact beads at weight ratio of 1:0.5-1.5, (b) adding the mixed mixture into a striking plate together with compressed air having compression pressure of 100-1000 kg/cm2, and continuously bombarding the mixture, and (c) selecting nanoscale particles. The impact bead: includes zirconium, artificial diamond, aluminum nitride, nickel, and/or nickel-iron alloy; and has size of 0.5-3 phi mm. The striking plate is made of zirconium, artificial diamond, aluminum nitride, nickel, and/or nickel-iron alloy. The nanoscale particles have thickness of 0.1-50 nm and area of 0.1-30 mu m. An INDEPENDENT CLAIM is also included for graphene composite powder resin comprising the nanoscale graphene and powdered resin; #coated water steel pipe comprising an inner surface coated with the graphene composite powder resin, and a coated outer surface equentially deposited with powder epoxy, modified polyethylene powder and polyethylene powder; and #producing steel pipe pile, comprising (i) heating a tube at 50-250 degrees C, (ii) coating the heated tube with the graphene composite powder resin, and (iii) drying the coated circular tube.