Define what is meant by hardening ability of metals?

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Define 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?

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Why do the Gamma Prime and Gamma Double Prime phases play such an important role in promoting strength in the superalloys?

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What are the compositions of brass, how can this metal be heat-treated, what is the melting point of this metal?

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Is it possible to determine the heat treatment condition in stainless steel (astm a 479 gr xm-19) by checking the microstructure?

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Explain cementite?

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Explain proeutectoid ferrite

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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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Which type of key is used between shaft and pulley?

0 Answers   NIC,

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Can you explain the refrigeration cycle?

0 Answers   Essar,

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carnot cycle has maximum efficiency for ?

0 Answers   NIC,

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Why we are doing post heating in alloy steel welding?

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