Recent content by manmeet123

  1. M

    Charpy Impact Testing: Why @ -20°? What @ Higher Temp?

    Offcourse, Sir , below recrystallization temp ductility is less & above recrystallisation ductility & toughness values are more. Also movements of atoms are is faster @ higher temp & that will be lower @ Lower temp. But if you can explain it in more specific technical way I will able to...
  2. M

    Charpy Impact Testing: Why @ -20°? What @ Higher Temp?

    Please can anybody explain why Impact testing is carries out @ -20 degree or @ lower temparatures. & what will happen if it is conducted @ higher temp. Please elaborate.
  3. M

    Integration & Derivatives ,Newtons

    Hi! Please can anyone help me to understand what exactly Integration & derivatives are. Please don't tell in form of limits & continuity. But tell in details of , what we exactly do when we use these functions. Please explain with a practicle example. I will appreciate your efforts...
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    ASTM 668 vs AISI 4340: Hardness Comparison

    Please can anyone help me to understand, is ASTM 668 is equivalent with AISI 4340. In AISI 4340 Hardness values are restricted upto 35 HRC , whereas ASTM 668 hardness values are upto 38 HRC. waiting for replies. Please help me out.
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