The requirement for ASTM A217 Gr. WC9 castings for valves components like Body and Bonnet were Normalising at 920+/- 20 Deg. C and Tempring 780+/- 20 Deg. C The specification calls furnace shall be calibtated within +/-14 deg. C The Heat Chart shows minimum temperature for normalising 900 to 920 Deg. C, but maximum temperature 960-990 Deg. C Tempering 780+/-20 Deg. C is within limits and accepted. Casting having integral test bars, heat trated along with castings passed in chemical znalysis and mechanical properties. Since normalising maximum temperature is not meeting specification, where castings can be salvaged or renormalised and retempered to meet specification. Whether it will have affect on remechanical properties testing
1730On which basis annealing cycle of steel bars of UpTo 6 MTR can be decided.we r charging 40-45 metric ton load for annealing in bogie furnace?
1000
Define what medal conducts heat best?
Give example of heterogeneous systems.
is nickel considered a non-sparking metal?
What affect would increasing the charpy impact toughness on an object have on the surface of an object it strikes if all else remains the same? Would it cause moredamage to the object it strikes?
any input on how to spec out(if possible) a larger grain structure(3/8" or larger) on a Al 6061 forging material.
Explain cementite?
What is iron ferrite and where is it found?
What is thermodynamic state of metal?
What is iron ferrite and what is it used for, and where is it found?
What are the componentsof SCS14 ?
Differentiate between 304 and 316 grades of steel?
State some precautions to be taken in case of powder metallurgy?
What is d2?
what medal conducts heat best?
What is power metallurgy?
