Search found 12 matches

by Sftyvlv
Wed May 30, 2018 7:36 pm
Forum: Live Steam
Topic: Stainless steel boiler/exchanger?
Replies: 84
Views: 11652

Re: Stainless steel boiler/exchanger?

Comstock-Friend wrote: ↑
Wed May 30, 2018 6:38 pm
Sftyvlv wrote: ↑
Wed May 30, 2018 5:55 pm
Comstock. Could not carbide precip be a factor as well even with austenitic and/or low carbon content on fireside surfaces?
T321H titanium stabilized to prevent carbide precip...

John
πŸ‘πŸ‘
by Sftyvlv
Wed May 30, 2018 5:55 pm
Forum: Live Steam
Topic: Stainless steel boiler/exchanger?
Replies: 84
Views: 11652

Re: Stainless steel boiler/exchanger?

Comstock. Could not carbide precip be a factor as well even with austenitic and/or low carbon content on fireside surfaces?
by Sftyvlv
Wed May 30, 2018 5:51 pm
Forum: Live Steam
Topic: Stainless steel boiler/exchanger?
Replies: 84
Views: 11652

Re: Stainless steel boiler/exchanger?

As already been mentioned ss is no good for boilers because of the metallurgical problems that accompany it. Having said that. It is used in in UNFIRED pressure vessels and process piping. Provided it doesnt reach the temp at which carbide precipitation occurs its all good. Fireside of heating surf...
by Sftyvlv
Mon May 28, 2018 1:49 pm
Forum: Live Steam
Topic: Nuby question
Replies: 9
Views: 1761

Nuby question

Working on my first machining project since high school. I chose Kozo's A3 project. Lol Ive started on the first tender wheel......2yrs ago. Hard to find time with family etc. My conundrum comes at the end of a session in the "shop". Do I completely clean and re-oil my machines? Or can I "walk away"...
by Sftyvlv
Sun May 27, 2018 11:21 pm
Forum: Live Steam
Topic: Stainless steel boiler/exchanger?
Replies: 84
Views: 11652

Re: Stainless steel boiler/exchanger?

As if this hasn't been mentioned already. Use good joint prep on all groove and fillet welds. Be careful and know your material and know how to weld. Had our local inspector investigate a case where a "backyard" distributing manifold for compressed air was fabricated. A summer student employee walke...
by Sftyvlv
Sun May 27, 2018 11:04 pm
Forum: Live Steam
Topic: Stainless steel boiler/exchanger?
Replies: 84
Views: 11652

Re: Stainless steel boiler/exchanger?

John_S wrote: ↑
Sun May 27, 2018 6:34 pm
My two cents: Save your money, build your boiler from a good piece of pipe and 516-70 carbon. It will outlast any savings you'd gain by spending 5x as much on stainless.
Good recommendation.
by Sftyvlv
Sat May 26, 2018 5:45 pm
Forum: Live Steam
Topic: Stainless steel boiler/exchanger?
Replies: 84
Views: 11652

Re: Stainless steel boiler/exchanger?

Trainman4602 wrote: ↑
Sat May 26, 2018 1:23 pm
YOU
As a red seal pipe welder and a Lvl 2 welding inspector metallurgy was and is part of my training.
by Sftyvlv
Sat May 26, 2018 12:37 pm
Forum: Live Steam
Topic: Stainless steel boiler/exchanger?
Replies: 84
Views: 11652

Re: Stainless steel boiler/exchanger?

Trainman4602 wrote: ↑
Sat May 26, 2018 12:30 pm
What is the source for all your advice? Do you have an engineering degree? I'm not trying to be critical of your post just asking the question
Who are you addressing?
by Sftyvlv
Sat May 26, 2018 12:04 pm
Forum: Live Steam
Topic: Stainless steel boiler/exchanger?
Replies: 84
Views: 11652

Re: Stainless steel boiler/exchanger?

As already been mentioned ss is no good for boilers because of the metallurgical problems that accompany it. Having said that. It is used in in UNFIRED pressure vessels and process piping. Provided it doesnt reach the temp at which carbide precipitation occurs its all good. Fireside of heating surfa...
by Sftyvlv
Sat May 26, 2018 1:59 am
Forum: Live Steam
Topic: Stainless steel boiler/exchanger?
Replies: 84
Views: 11652

Re: Stainless steel boiler/exchanger?

Sftyvlv wrote: ↑
Fri May 25, 2018 9:05 pm
Anybody ever use 1 1/4, 2 1/4 chrome (asme A 335) pipe and or plate equivalent for boiler fab.
Has great high pressure/high temp qualities and probably some anti corrosive properties as well.
*ASTM SA 335
by Sftyvlv
Sat May 26, 2018 1:39 am
Forum: Live Steam
Topic: Stainless steel boiler/exchanger?
Replies: 84
Views: 11652

Re: Stainless steel boiler/exchanger?

Nothing wrong with stainless steel boilers. Tom Miller Dave Moore and Doug Alkire all had ss boilers. My K4 has stainless steel tubes. Most inspectors today have fear of the ss because of the chlorine in the water. I use well water and I think Dave Moore has a chlorine filter for his boiler. Until ...
by Sftyvlv
Fri May 25, 2018 9:05 pm
Forum: Live Steam
Topic: Stainless steel boiler/exchanger?
Replies: 84
Views: 11652

Re: Stainless steel boiler/exchanger?

Anybody ever use 1 1/4, 2 1/4 chrome (asme A 335) pipe and or plate equivalent for boiler fab.
Has great high pressure/high temp qualities and probably some anti corrosive properties as well.