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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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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what is the hardness of ohns before heat treatment process and hardness of en series before heat treatment process

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Witch type curome oxide in ms matle?

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Why post-heating is done in alloy steel welding?

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What is duplex and super duplex steel?

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What Is cold working of metals? Give some of its principal methods.

0 Answers   Essar,

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HOW TO GET LAST 10 YRS. QUESTION PAPERS

0 Answers   ONGC,

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Where is mangenese steel used?

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Why we are doing post heating in alloy steel welding?

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what is difference between IS 1018 and IS 2062 E 250A

0 Answers   Tata Chemicals,

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What is chemical composition and mechanical properties of IS 2004,Gr-3 and IS 305 AB-2?

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