I currently use 17-7 PH stainless which is hardened to
condition CH after forming. raw matl is .1.75"X .12"
X .008". Its main usage after hardening is silicon wafer
retainer where it's contantly cycled up and down to putin
and remove wafer after 40-60 sec process at 400C temp. At
this high temperature this part seemed to deform after a a
couple of hundred wafer which is what it was designed for
in the first place. THere is a proposal to go to a
different material to increase lifeline of this part. My
question is..... can 321 SST be a plugin replacement. I
know this has a higher temp rating but how about its
forming characteristics, will it have spring properties,
and wont become brittle after prolonged exposure to 400C.
i m going to give an interview for iocl on 5th aug . pls
tell me what questions can be answered from metallurgical
What is the difference between DI pipes, Cast Iron pipes, LA
Pipes, SW pipes, SWR Pipes, RCC hume pipe, RCC spun pipe ?
What are their IS codes and applications ?
i want to go to US for Bachlore of computer science, I
didn't appeared for SAT. my ielts scores are too low only
5.5 band and I am confused if VISA OFFICERS will ask why u
hadn't given SAT. what i have to answer pl suggest?
What is the chemical composition of FCVS350 ?
what are the causes of scaling in cast iron, after
subjecting it to annealing process.
For the same part, it is possible to Specify the two
different type of Hardness with same scall(EX-Quenching and
tempering==>450 to 500HV30 & Hardening and Austempering 330-
white rust formation over zinc plated and passivated
fasteners during CED coating. WHY?
what is a rate controlling step ? how is it dependent on
reaction path ? explain with an example.
where do i get previous question papers of metallurgy?
does any one has gate solutions of 2007,08,09 metallurgical
How to melt the solidified copper accretions in copper
scrap melting furnace?
what are different grades of mild steel available for making
machine structure (housing)
i need manual solution of diffusion in solid(shewmon) if
you have plz send for me. tank you
my email : email@example.com