1.6981 21CrMoNiV4-7 quenched এবং টেম্পারেড forged sleeves রুক্ষ মেশিনযুক্ত
1.6981 21CrMoNiV4-7 QuenchiedAnd Tempered Forgings Sleeve Forged Cylinder Rough Machined 1) Short Introduction:Surface Finish:3.2um Ra Or As Required.Forging Reduction Min:3 Or As RequiredRought machining or Finis Machining2) 21CrMoNiV4-7/1.6981 Chemical Composition:CSiMnPSCrMoNiVAl0.17~0.250.15~0.350.25~0.85≤0.020≤0.0200.9~1.20.65~0.800.50~0.800.25~0.35≤0.0151)The Al content of the cast shall be reported and indicated in the certificate3) Heat Treatment:Hardening:900-950℃