How to calculate heat affected zone in weld?

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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? Define what is the ratio of dbc to oxalic acid solution in this step?

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

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what is the strongest metal?

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i need manual solution of diffusion in solid(shewmon) if you have plz send for me. tank you my email : alloymail@gmail.com

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How do you classify lathes?

0 Answers   Essar,

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Which method has more procity in cast part? Which method has more strength in cast part?

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What is iron ferrite and where is it found?

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Which liquid can dissolve gold?

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The moment of inertia of an area is always least with respect to ?

0 Answers   NIC,

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

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How one can differentiate between 304 & 316 grades of steel (physically)?

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