Define what is or define what characterize the thermodynamic state of metal (structure of metal)?

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what is the composition of grey cast iron grade 20?

2 Answers  

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What is the metallurgical explanation of effects of chromium, nickel, molybdenum, and carbon in stainless steels?

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Which type of furnace is required in solution annealing?

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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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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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When a spring is cut into two, stiffness becomes ?

0 Answers   NIC,

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What is the chemical composition of ceramics?

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what are the causes of delayed fracture in case hardened steels?

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How to melt the solidified copper accretions in copper scrap melting furnace?

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Why are the superalloys used for land-based turbines?

1 Answers  

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What is material of is 1968 and what is its modulus of elasticity.

2 Answers   L&T,

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