I had a customer tell me about their system.
Slightly hotter, 285F but in the same range.
The only leaks that they really worried about as a danger were the ones that were small enough that water wouldn't leak, just steam.
They didn't see it as a serious personal injury issue, just as system...
No, flaring doesn't improve joint strength.
But it greatly lower your tube side pressure drop and it go a long ways to minimize the turbulent erosion at the inlet and outlet.
For castings you need to cut completely below the surface from the casting.
This is often >0.060".
There will sometimes be embedded material in the surface layer.
Low rpm, deep cut, lots of HP, and requires a very stiff machine and tool holder.
Your castings have been solution annealed haven't...
So you listed 9 terms, you realize that is encompasses 20-40,000 variables.
Though flammable, inflammable are the same thing.
Explosive is just another range of flammability.
Now self ignition or deflagration is another thing.
Toxic and lethal are variation of the same issue, bio-impact.
And...
2205 will resist erosion at velocities over 3m/s.
In plain clean water I have seen 2205 hold up with >25m/s flow.
The real problem in the inlet into the tubes.
Will you use a 2205 tubesheet?
Are you prepared to flare in the inlet and outlet ends of the tubes?
The 2205 will resisted droplet...
I had to laugh when I saw the title of this thread.
We used to make tubing in a specialty stainless alloy.
How special? Well we bought the two heats of it that melted each year.
For specialty steels there are many small distributors.
Start with people like Alro and Fry, if they don't have it...
What is the tube material?
Condensing streams are tricky.
Often there will be impingement protection in the form of solid rods as the first two rows in place of tubes.
In main steam condensers they run some crazy velocities but they can spread it out a lot and provide protection.
If you simply wanted to cut the flange from plate you would use 140mm plate wouldn't you?
Isn't this the same orientation as his original solution?
But in this case the "LT" and "ST" very around the ring.
At least with his approach they will stay constant.
Is he cutting across the plate or along...
One of the problems with alloys like 91 is that you can't judge the creep strength of the welds based just on looking at them.
If you don't actually have data on the impact of weld repair (and re-PWHT) then caution is needed.
Overlapping HAZs are a rats nest of issues.
In some cases it doesn't matter.
In some alloys a little more heat isn't a bit deal, you test and make sure that it is OK.
But in alloys where there is precipitation it can be a nightmare.
Precipitates will grow and coarsen and this can seriously...
Any surface treatments?
17-4 will only get you in the low to mid 40's HRC.
With tool steels you are dealing with mid-50's into the low 60's.
What are you cutting?
How about virtually none.
https://nickelinstitute.org/media/1724/materialsforsalinewaterdesalinationandoilfieldbrinepumps_11004_.pdf
Unless this is oxygen free (<5ppm) and cold I don't see plain cast iron lasting in the velocity and turbulence of a pump.
You might be able to use a Best tester with some special fixturing.
but I am more with IR on this.
Measuring load (torque) may be your best option.
We had CNC lathes that had a carbon steel backing plate that was replaceable.
After every few pieces there was a cut taken from the edge of the...
