What is the melting point of brass?

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What are allotropes? What are the allotropes of iron and carbon?

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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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sir please send me previous question papers on metallurgy at vishal.nitrr07@gmail.com .....thank you

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What are the properties and application of manganese steel?

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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?

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Throw some light on hardening abilities of metals?

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Discuss the basic functionioning of air conditioner.

0 Answers   Essar,

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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.

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How to calculate heat affected zone in weld?

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The requirement for ASTM A217 Gr. WC9 castings for valves components like Body and Bonnet were Normalising at 920+/- 20 Deg. C and Tempring 780+/- 20 Deg. C The specification calls furnace shall be calibtated within +/-14 deg. C The Heat Chart shows minimum temperature for normalising 900 to 920 Deg. C, but maximum temperature 960-990 Deg. C Tempering 780+/-20 Deg. C is within limits and accepted. Casting having integral test bars, heat trated along with castings passed in chemical znalysis and mechanical properties. Since normalising maximum temperature is not meeting specification, where castings can be salvaged or renormalised and retempered to meet specification. Whether it will have affect on remechanical properties testing

0 Answers   Leader Valves,

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Upto what negative temperature below zero degree we can use IS 2062 Structural material?

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