What is the use of core prints?

0 Answers   NIC,

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Define what kind of cleaning substance or treatments keep or help prevent cast iron from rusting?

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what is proeutectoid ferrite and cementite?

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Can 1026 steel be welded?

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State some precautions to be taken in case of powder metallurgy?

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What is duplex and super duplex steel?

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What is the melting point of e70 steel, 304,308,316 stainless steels? In addition, what is the hottest part of the flame in a fire?

0 Answers  

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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.

3 Answers  

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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 iron ferrite?

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Why is chromium molybdenum steels used to build pressure vessels? What is special about the properties of chromium molybdenum steels that make them ideal forpressure vessels?

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What is the function of washer?

0 Answers   NIC,

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