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Do you know define what metal might be considered the “most environmental”? I say aluminum because it can be recycled others on my team say brass.
1166How is solution annealing carried out? Define what type of furnace is required? Does one need to be heat in a salt bath?
1114Define what is the melting point of e70 steel, 304,308,316 stainless steels? In addition, define what is the hottest part of the flame in a fire?
1058Is 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?
1142Is there any way through hardening and anodizing some type of aluminum, it could be as hard as steel? I have hardened steel rollers that run up and down on a ramp along with spring pressure. Alternatively, if you are familiar with snowmobiles, the rollers run on the helix on the secondary clutch.
1092When 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.
1084Define what is special about the properties of chromium molybdenum steels that make them ideal for pressure vessels?
1093Does case harden steel properties detoriates over time? Especially for guns, parts like bolt carrier, the brand new parts has been kept for 10 year and properly oiled. I am worried about its surface hardness to take the blow during firing.
1382
How do you classify lathes?
Which liquid would oyu use to dissolve gold?
How would a salt and water solution clean a penny but a vinegar and salt solution will not clean a penny?
Explain metallurgical microscopes?
what is the strongest metal?
carnot cycle has maximum efficiency for ?
What is the most ductile metal?
Explain the purpose of riser?
What is the Difference of ultimate tensile stress of mild steel to ultimate compressive stress ?
Define what is the metallurgical explanation of effects of chromium, nickel, molybdenum, and carbon in stainless steels?
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.
Why same casting has different hardness and machine-ability properties?
What are the uses of electroplating?
what is meant by hardening ability of metals?
What is the specific speed of a pump ?
