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  • Heat or cast numbers | Eng-Tips
    MTCs always provide the vital information of heat number or cast numberfor identification This is a reference number stamped on the parts as well as on test bars from which samples are drawn for testing The results of these tests are furnished in the MTCs Also heat numbers assist in the case of traceability to the melt or heat from which it is poured This identification is retained through
  • heat analysis versus product analysis | Eng-Tips
    Can anyone explain why for a given material grade of steel the heat analysis and the product analysis ranges differ within a specification?
  • Cast aluminum plate heat transfer | Eng-Tips
    I'm wondering whether I can transfer the ambient heat through the cast aluminum plate into the laminate and, if so, what the time lag is between change in ambient temp and the temp of the cast aluminum
  • Difference between heat number, lot number and batch number
    Dear All It is common to see heat numbers in the MTC(Material Test Certificates) However, sometimes we also come across lot numbers and batch numbers Can somebody help explain the difference between the 3 heat numbers ? regards QW Tian
  • specific heat of molten cast iron | Eng-Tips
    I am looking for the specific heat of molten (2750 F) cast iron
  • Cast Iron for heat treat fixture? | Eng-Tips
    Coming back to cast iron fixtures,never heard of them being used,though chromium containing cast irons are used as furnace furniture in lower temperature zones At carburizing temperatures of 850C and above and prolonged exposure to high temperature may cause failure The current practice of using steel fabrication is economical and simple
  • Heat Transfer in a Drainage Pipe | Eng-Tips
    Trying to determine how quickly the water temperature in a partially full sanitary drainage pipe will drop from 180 F to 140 F The rationale is to determine where in the piping system I can transition from Cast Iron pipe to PVC when I have a discharge to the system from a boiler water
  • Heat transfer times for aluminum | Eng-Tips
    Forgot to mention we heat the stacks by placing 16 of them into an industrial oven and blowing hot air in As they can't go above the setpoint of 55 degrees, when the first one gets there the air temp lowers to maintain the max stack temp of 55 degrees, then the other stacks slowly get there too
  • Post weld heat treatment of aluminum casting? | Eng-Tips
    KirbyWan, A356 0-T (?) is definitely weldable, and even new parts cast from this material are commonly weld repaired at the foundry to fix casting porosity, defects, or to plug cored holes Ideally, the part would always undergo a post weld stress relief and heat treatment to whatever condition is specified by the engineering
  • Welding in 17-4 PH (UNS S17400) | Eng-Tips
    which heat treatments should follow welding This particular alloy is the most common member of the class and is generally considered to have the best weldability When a weld filler is needed, AWS E ER 630 is most often specified AK Steel 17-4 PH Stainless Steel is well known in reference literature and more information can be obtained in





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