Which type of welding is used for welding of duplex and super duplex steel?

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What is the melting point of e70 steel, 304,308,316 stainless steels?

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What is thermodynamic state of metal?

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carbon-3.23%,manganese-0.60%,silicon-2.25%,sulphur-0.086% phosphorus-0.122%,chromium-0.04%,nickel-0.10%, molybdenum-trace. WHAT IS THE GRADE OF THIS CAST IORN.

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what is widman statten structure?

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On what Purpose helical gears are used?

0 Answers   NIC,

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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.

0 Answers   Novellus,

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What is hot working of metals? Give some of its principal methods.

0 Answers   Essar,

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Which material is used to made up of electrodes of resistance welding?

0 Answers   NIC,

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Define what is the strongest metal?

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A plain carbon steel contains 45 wt% of proeutectoid ferrite. Define what is its average carbon content in weight percent? I know that you need to use a tie line in the phase diagram, but my book does not really give a good example to go by

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When using mercury to recover very, fine gold from ore, what is the best way to separate the gold laden mercury from the ore?

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