HK, HT, or HU material in annealing application
HK, HT, or HU material in annealing application
(OP)
We are looking at changing the material of grid plates that we use in an annealing oven. The max temp is around 1550 deg F. We currently use HT material. One person has recommended HU or HX (increased Nickel content) to increase ductility while another has recommended HK (increased Chrome content) to increase heat strength. Which is better for our application more Nickel or more Chrome?
Thanks.
Thanks.





RE: HK, HT, or HU material in annealing application
RE: HK, HT, or HU material in annealing application
Check out this link,
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RE: HK, HT, or HU material in annealing application
You have to be careful. If these see rapid heating and/or cooling then making them stronger may result in them failing faster.
If you need more ductility and long term metallurgical stability then paying for more Ni is not a problem.
Let's identify the problem first.
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Rust never sleeps
Neither should your protection
http://www.trent-tube.com/contact/Tech_Assist.cfm
RE: HK, HT, or HU material in annealing application
RE: HK, HT, or HU material in annealing application
Are these run at temperature in air?
= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection
http://www.trent-tube.com/contact/Tech_Assist.cfm
RE: HK, HT, or HU material in annealing application
Yes, air only.
RE: HK, HT, or HU material in annealing application