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.
464What 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?
503Why 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?
496How 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?
577How would a salt and water solution clean a penny but a vinegar and salt solution will not clean a penny?
515What is the metallurgical explanation of effects of chromium, nickel, molybdenum, and carbon in stainless steels?
481
What are the allotropes of iron and carbon?
Define what is the difference between diagrams of it and ct in heat treatment of steels?
What happens to the microstructure during service exposure?
When we do cardonitriding or casehardening operation for a plain carbon steel the case depth, hardness & microstructure are not alike why and define what are the basic thing, which makes such a difference.
What Is cold working of metals? Give some of its principal methods.
How 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?
How do 304 stainless steel and 316 stainless steel weld to each other? I am hoping my medical device prospect will be able to weld a component made in 316 ss via metal injection molding toa 304 ss tube.
Differentiate between ferrite percentage and ferrite number?
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.
What is gold investment casting?
What is hardest cutting tool material?
Define what other events in history might have affected the growth of metallurgy?
Does the extrusion process for a355 and a356 alloy effect on the amount of impact energy?
How can you find out what kind of stainless steel was used in making a stainless object?
What are the characteristics of the thermodynamic stage of a metal?
