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Recent content by mk1979

  1. mk1979

    How do you add N in steel

    We already have an experience in how to add Nitrogen in stainless.Merely,we use ferromanganese bearing nitrogen during melting in open air induction furnace
  2. mk1979

    crushers for producing steel grit

    Morning all, I,m looking for crushers which used to produce a steel grit,where the input is steel shots with diamter 1.7-2.4mm. anyone advise me where can i get it
  3. mk1979

    Excessively hard A48 Class 30

    that,s right the machining of this grade of cast iron may be less machinable,the P content is 0.15%. but you cann,t make any heat treatment process to get thi smaterial machinable.just you can replace the machining tip with other hard one.
  4. mk1979

    Porosity in CA6NM castings

    i meant that For multicomponent alloys with three or more components, the process of microstructure formation during solidification is less understood, especially for cases where multiphase reactions occur along the solidification path of the alloy. Such cases are common in industrial practice...
  5. mk1979

    Porosity in CA6NM castings

    Sure, the changing solubility on solidification almost is the problem.
  6. mk1979

    Hardening problem

    My friend your problem is common and happened likely in this type of steel A372,according the high Mn content 1.3-1.6,means a hard cementite formed.but you can make annealing in order to relief the structure after welding,then make a machining that you,d like(drilling),then make normalizing to...
  7. mk1979

    Residual phosphorus levels after re-melting

    i guess the recovery of phosphorus during melting regime is about 80%. as my experience
  8. mk1979

    Free Machining Steels For Threaded Connections

    now,this overcome in free cutting steel by modification the mrphology of MnS by modifiers like Ca. may be your product is not developed.
  9. mk1979

    Choice of metal for high temperature application

    the most applicable for this purpose is CUNi20Fe DIN17664,in my opinion.
  10. mk1979

    Effect of Annealing on Yielded Tensile Specimen

    Annealing means that heating of steel above the temperatures of phse transformation followed by slow cooling. as a result of annealing ferrite and pearlite in hypoetecoid steel,pearlite in eutectoid,pearlite and cementite in hyperutectoid. annealing reduce the grain size,then the yield increase...
  11. mk1979

    material

    now,i,m in order to make a search to develop Hadfield steel through ousting of long term heat treatment process,i need any atricles on this subject.
  12. mk1979

    ASTM A108 MAT'L TYPE?

    ASTM A108,4.1.12,For coiled product, the coil weights, inside diameter an outside diameter limitations when required. so,i guess you can used Weight character for wire. Mohamed El-Fawkhry
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