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What is the minimum temperature for stress relieving of astm a 519 gr.4130 material and please tell us where we can find the location.
802What is the melting point of e70 steel, 304,308,316 stainless steels? In addition, what is the hottest part of the flame in a fire?
847Why is chromium molybdenum steels used to build pressure vessels? What is special about the properties of chromium molybdenum steels that make them ideal forpressure vessels?
848How much gold concentration should be in the organic phase (dbc) before reduction by oxalic acid solution? Is it effective on purity of gold in reduction step? Whatis the ratio of dbc to oxalic acid solution in this step?
966How would a salt and water solution clean a penny but a vinegar and salt solution will not clean a penny?
875What is the metallurgical explanation of effects of chromium, nickel, molybdenum, and carbon in stainless steels?
926
What are the properties and application of manganese steel?
How much gold is in a troy ounce?
What happens when the mercury of a thermometer spills over the gold ring?
Which pump is preferred for small discharge at high pressure?
How does and why the recrystallization temperature of the metals affects on alloying?
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.
Is there a possibility of inducing stress cracking in an insulated stainless road tanker vessel (20 tonne capacity) if the vessel is subject to rapid filling (10 tonne /hr) with liquid methane (-160 c) assuming the vessel is at ambient. If so, where could I obtain suggested cooling rates?
You are required to calculate a heat affected zone in weld. How would you do that?
Define what medal conducts heat best?
How is solution annealing carried out? What type of furnace is required? Does one need to be heat in a salt bath?
what is the difference between stainless steel and alloy steel?
Do you know what metal might be considered the "most environmental"? I say aluminum because it can be recycled others on my team say brass.
Explain any method through which molds can shine after casting?
Does the extrusion process for a355 and a356 alloy effect on the amount of impact energy?
what kind of cleaning substance or treatments keep or help prevent cast iron from rusting?
