Quenchied And Tempered Forged Sleeves Rough Machined

  1) Short Introduction: Surface Finish:3.2um Ra Or As Required.Forging Reduction Min:3 Or As RequiredRought machining or Finis Machining 2) 21CrMoNiV4-7/1.6981 Chemical Composition: C Si Mn P S Cr Mo Ni V Al 0.17~0.25 0.15~0.35 0.25~0.85 ≤0.020 ≤0.020 0.9~1.2 0.65~0.80 0.50~0.80 0.25~0.35 ≤0.015 1)The Al content of the cast shall be reported and indicated in the certificate3) Heat Treatment: Hardening: 900-950℃/air,oil or water dipping Tempering: :680-720℃(2h min)  4) Certfiticates List: Certificates list ISO9001:2008 ISO14001:2004 PED Certificate ABS Certficate BV Certficate DNV Certificate RINA  Certficate GL  Certficate LR  Certficate CCS  Certficate NK  Certficate KR  Certficate API-6A  Certficate API-17D  Certficate CNAS  Certficate  5) The main manufacturing equipments: Name&Description Capacity Quantity 3600Thydraulic press Max. single forging in 18T 1 2000T hydraulic press Max. single forging in 9T 2 800 h…