cutter11 - 6-1-2006 at 16:21
I have an application that require the use of Bromine Trifluoride at High Temperature High Pressure. 500 F, and 25000 PSI. The application uses a
Copper part where the HTHP causes the copper to cut in half. My question is: What Kind of metal could be used that could withstand more HTHP
with BrF3. could I use something coated with ceramic or thermal insulator, or graphite?
Thank you.
Magpie - 6-1-2006 at 20:48
Why not stainless steel 316?
BrF3
cutter11 - 9-1-2006 at 19:01
It prohibits the use of stainless steel since the reaction that takes place prohibit the use of anything that has steel because it reacts with the
chemical.
Fleaker - 10-1-2006 at 18:38
I suggest inconel then, I'm fairly sure that would take it (it takes 250*C elemental bromine at 150psi).
I guess my question is, what are you using this for!?!!?
BromicAcid - 10-1-2006 at 18:54
So, copper lacks the mechanical strength, that is what bromine triflouride and the exceedingly vicous pentaflouride are produced in. How about the
other metals that are famous for the confinement of the halogens, monel metal and if desperation calls, nickel?
Fleaker - 11-1-2006 at 16:11
Just what I suggested: inconel is a high strength copper/nickel alloy with a bit more tenacity than plain ol' monel.
Alloy Composition
Alloy: Inconel 625
Nominal Composition in Percent:
Ni
58.00
Co
1.00
Cr
21.50
Mo
9.00
Fe
5.00
Si
0.50
Mn
0.50
C
0.100
Al
0.400
Ti
0.400
P
0.015
S
0.015
Cb+Ta
3.65
mick - 15-1-2006 at 10:56
Expensive but tantalum might work.
mick
cutter11 - 21-8-2006 at 10:54
I am sorry guys, I did not reply for a long time, But read ur replies.
I have tried Nickel by itself, it was a disaster. I am affraid that the high
percentage of nickel in inconel would cause the same problem. Can someone suggest an alloy mainly copper but have higher melting point and higher
mechanical properties than copper C110 for example?
Thank you
God Bless
ordenblitz - 21-8-2006 at 17:15
I'm curious how you generate the 25,000 psi.
cutter11 - 22-8-2006 at 05:59
This is a gas pressure application, through burning of solid propellant.
tumadre - 29-8-2006 at 17:53
I'm assuming that you are using 100% Cu that is soft like copper wire
did you try using hard drawn copper, or heat the copper to about 900 C (low red color) and slowly cool in air,
I don't know that the hardness will be sustained in 500 F heat. I think it will be