Answer / nishanth

Carbon (up to 4%): The carbon content of the grey cast
iron later on gets converted to graphite after going through
a series of chemical reactions. This graphite content is
responsible for providing strength and easy machinability
feature to the Grey Cast Iron.
Silicon (up to 3%): Silicon is mainly added for the
de-oxidation process so that the carbon content added does
not get oxidized to the iron carbides. Silicon acts as the
stabilizing element for the graphite in the Grey Cast Iron.
Manganese (0.8%): Manganese acts as a stabilizing
element that ensures that the Grey Cast Iron delivers high
performance even at high temperatures. This property
increases the toughening of the overall structure.
Sulfur (0.07%): It acts as a stabilizing element for
manganese and improves the toughness of the Grey Cast Iron
at high temperatures.
Phosphorus (0.2%): Phosphorous has to be added in small
amounts to improve the fluidity, corrosion resistance and
the toughness of the Grey Cast Iron. Phosphorous, when added
in large amount, reduces the overall strength of the Grey
Cast Iron.
Molybdenum (up to 0.75%): Molybdenum improves the
strength and elasticity of the Grey Cast Iron when added in
small amounts.
Chromium (0.35%): Chromium improves the temperature
range and hardness of Grey Cast Iron.
Vanadium (0.15 %): Vanadium improves the wear and tear
resistance.

why do we require cooling towers in case of water cooled chillers?????

2 Answers  

---

What is the lower part of connecting rod?

4 Answers  

---

Dear Sir, i want to know formula for steel BAR/SQUARE/HEX/FLAT>LENGTH. SUPPOSE I PURCHASE 10 KG OF ROUND BAR OF DIA. 20MM SO WHAT LENGHT I GET. SAME FORMULA FOR HEX/SQUARE.?

0 Answers  

---

what is mean dual combustion turbocharged?

2 Answers   CAT,

---

I have purchased some circlips @rs 100/- p pc on 01.01.2017 ans some @rs.120/- p pc/@rs.90/- p pc dt. 31.03.2017 what is the ending price of per pcs

0 Answers  

---

What was the hardest part of obtaining your engineering degree?

0 Answers  

---

what type of questions will be there in the written paper of tata motors ?

0 Answers   TATA,

---

What is a combination thrust and radial bearing?

0 Answers  

---

how does an EDM works?

2 Answers  

---

What is ERW & shedule & seamless pipe? and whas the IBR grade pipe.

5 Answers   Grasim, Jindal Steel and Power, NI,

---

How do you calculate cooling energy?

0 Answers  

---

Is it a good sign when thick smoke comes out of a Oil vapor extraction fan of a steam turbine oil sump? What does it indicates?

0 Answers  

---