I currently use 17-7 PH stainless which is hardened to condition CH after forming. raw matl is .1.75"X .12" X .008". Its main usage after hardening is silicon wafer retainer where it's contantly cycled up and down to putin and remove wafer after 40-60 sec process at 400C temp. At this high temperature this part seemed to deform after a a couple of hundred wafer which is what it was designed for in the first place. THere is a proposal to go to a different material to increase lifeline of this part. My question is..... can 321 SST be a plugin replacement. I know this has a higher temp rating but how about its forming characteristics, will it have spring properties, and wont become brittle after prolonged exposure to 400C.

0 Answers   Novellus,

---

What type of grinding is used for harder materials?

0 Answers   NIC,

---

What is the material of E185

0 Answers   DE,

---

what metal cord transfers electricity?

0 Answers  

---

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

0 Answers  

---

Define what is the grain size of lead as an element and as an alloy such as lead tin alloy?

0 Answers  

---

What is dielectric medium in EDM ?

0 Answers   NIC,

---

carbon-3.23%,manganese-0.60%,silicon-2.25%,sulphur-0.086% phosphorus-0.122%,chromium-0.04%,nickle-0.10% molybdenum-trace. what is the grade of the above composition cast iron

0 Answers  

---

dear sir i need some information about prevent eutectic carbide network(as cast) formation in 12% cr steel casting by another alloying element(my analays: c=1.2-1.4 cr=11-13 mo=0.2-0.4 ni=0.2-0.4 )or break network carbid after formation in solidification by heat tretment please help me my email adress: alloymail@gmail.com

0 Answers  

---

Does case harden steel properties detoriates over time? Especially for guns, parts like bolt carrier, the brand new parts has been kept for 10 year and properly oiled. I am worried about its surface hardness to take the blow during firing.

0 Answers  

---

does any one has gate solutions of 2007,08,09 metallurgical engg papers?

0 Answers  

---

You are required to calculate a heat affected zone in weld. How would you do that?

0 Answers  

---