Does the extrusion process for a355 and a356 alloy have any impact on the impact energy?

0 Answers  

---

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,

---

When using mercury to recover very, fine gold from ore, define what is the best way to separate the gold laden mercury from the ore?

0 Answers  

---

What is power metallurgy?

0 Answers  

---

Why steel is preferred for construction of aircraft?

0 Answers  

---

What is the melting point of e70 steel, 304,308,316 stainless steels?

0 Answers  

---

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

0 Answers  

---

What is the use of damper?

0 Answers   NIC,

---

The moment of inertia of an area is always least with respect to ?

0 Answers   NIC,

---

how can i prevent the backfire occurrence in copper shaft furnaces?

0 Answers  

---

where do i get previous question papers of metallurgy?

0 Answers  

---

What is mean by D2 Material used for Die tooling? What are the composition in that?

1 Answers  

---