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Stainless Heat Exchanger Question, are they 100 percent stainless?

Aaron Cox	Nov 9 2005, 04:04 PM Post #1
Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: Corona, CA Member No.: 219 Region Association: Southern California	(IMG:http://www.914world.com/bbs2/uploads/blog-1131573346.jpg)

Replies(1 - 19)

r_towle	Nov 9 2005, 04:39 PM Post #2
Custom Member Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States	From what I see. The black heater tube pipes are NOT stainless. From What Foley told me. If they are stainless, both inside and outside are stainless. The rear flange is regular steel. If you want, HPh has stainless flanges. Rich

Aaron Cox	Nov 9 2005, 04:54 PM Post #3
Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: Corona, CA Member No.: 219 Region Association: Southern California	the whole thing looks stainless. someone said the pipes were cheap steel..... thanks rich

richardL	Nov 9 2005, 05:13 PM Post #4
Senior Member Group: Members Posts: 713 Joined: 27-January 03 From: San Diego, CA Member No.: 201 Region Association: None	The SSI ones are truly all stainless. The Dansk ones are only stainless on the outside (I have seen a very compelling demonstration of this). R

Aaron Cox	Nov 9 2005, 05:17 PM Post #5
Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: Corona, CA Member No.: 219 Region Association: Southern California	how can i tell if these are SSI or Dansk?

SLITS	Nov 9 2005, 05:28 PM Post #6
"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None	Foist, oh mighty magnate of the Engineering Dept at Bovine U, you purchase a magnet.....sound familiar.....here are the rules: 1.) If it sticks, it ain't stainless (unless it's cheap 504 series) 2.) If it doesn't stick, it's prolly stainless or plastic. 3.) If you hit it and it makes a "ring" sound it's prolly metal (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) The set you have are iron pipe surrounded by a SS heat exchanger shell (So now you don't have to buy a magnet and learn how to use it).

Aaron Cox

Nov 9 2005, 05:32 PM

Post #7

Professional Lawn Dart

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QUOTE (SLITS @ Nov 9 2005, 04:28 PM)

Foist, oh mighty magnate of the Engineering Dept at Bovine U, you purchase a magnet.....sound familiar.....here are the rules:

1.) If it sticks, it ain't stainless (unless it's cheap 504 series)

2.) If it doesn't stick, it's prolly stainless or plastic.

3.) If you hit it and it makes a "ring" sound it's prolly metal (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)

The set you have are iron pipe surrounded by a SS heat exchanger shell (So now you don't have to buy a magnet and learn how to use it).

duh... i didnt think about that (IMG:http://www.914world.com/bbs2/html/emoticons/051103-stupid4.gif)

anywho... a magnet doesnt stick to anything but the black heater tubes.

sooo...the whole thing is stainless, even the flanges.
thanks guys (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)

BTW - anywhere to look for Manufacturer markings?

Mueller

Nov 9 2005, 05:34 PM

Post #8

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QUOTE (SLITS @ Nov 9 2005, 04:28 PM)

Foist, oh mighty magnate of the Engineering Dept at Bovine U, you purchase a magnet.....sound familiar.....here are the rules:

1.) If it sticks, it ain't stainless (unless it's cheap 504 series)

2.) If it doesn't stick, it's prolly stainless or plastic.

3.) If you hit it and it makes a "ring" sound it's prolly metal (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)

The set you have are iron pipe surrounded by a SS heat exchanger shell (So now you don't have to buy a magnet and learn how to use it).

actually magnet can be attracted to a high quality stainless...normal conditions would be for 400 series or 300 series if cold worked or machined......

if you have a known steel/iron part, you can do a comparison to see how well the magnet "snaps" to the item

Mark Henry

Nov 9 2005, 06:02 PM

Post #9

that's what I do!

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QUOTE (r_towle @ Nov 9 2005, 06:39 PM)

From What Foley told me.
If they are stainless, both inside and outside are stainless. The rear flange is regular steel.

Brad told me...way back when he was still with SSI...that only the very early SSI's (like mine) had a steel rear flange, plus the weld nuts were steel.

By the eighties they were all stainless.

Dave_Darling	Nov 9 2005, 06:04 PM Post #10
914 Idiot Group: Members Posts: 15,161 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California	I belive that early SSIs had mild-steel muffler flanges. This was later changed over to SS, but I don't know when the switch occurred. New SS flanges can be purchased and welded on by someone who knows how to deal with SS. --DD

qa1142	Nov 9 2005, 06:05 PM Post #11
Whiplash Group: Members Posts: 1,514 Joined: 1-June 04 From: Lake Zurich, Illinois Member No.: 2,140	how much do you want for them? I call 1st dibs (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif)

Mark Henry	Nov 9 2005, 06:13 PM Post #12
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada	BTW the tubes to the flapper box on my early set are stainless

Aaron Cox

Nov 9 2005, 06:28 PM

Post #13

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QUOTE (qa1142 @ Nov 9 2005, 05:05 PM)

how much do you want for them?

I call 1st dibs (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif)

i just bought em today.

(IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)

Katmanken	Nov 9 2005, 09:43 PM Post #14
You haven't seen me if anybody asks... Group: Members Posts: 4,738 Joined: 14-June 03 From: USA Member No.: 819 Region Association: Upper MidWest	The metallurgist that lives a street over from me told me that mine would rust... He works for GE aircraft engines so what does he know.... Said the pipes are a poor grade of stainless... Then again he is full of poo sometimes.... Ken

Mark Henry	Nov 10 2005, 06:07 AM Post #15
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada	Can't be that bad....The teen I got my early SSI's off of was rusted right into the ground. The mild steel flanges were rusted almost right off. Hot tanked them and TIG'ed new flange's and they looked like new. the wreck they were found on..... (IMG:http://www.914world.com/bbs2/html/emoticons/ohmy.gif) Attached image(s)

SirAndy

Nov 10 2005, 11:21 AM

Post #16

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QUOTE (Mark Henry @ Nov 9 2005, 05:02 PM)

only the very early SSI's (like mine) had a steel rear flange, plus the weld nuts were steel.
By the eighties they were all stainless.

(IMG:http://www.914world.com/bbs2/html/emoticons/agree.gif) early SSI had steel flanges, later models are stainless all the way ...

they should clean up nicely!
(IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) Andy

Speedster07	Nov 10 2005, 02:21 PM Post #17
Member Group: Members Posts: 177 Joined: 20-September 03 From: Indy Member No.: 1,177	No wonder that teener melted into the ground, its growing dope all around it, I'd melt too. (IMG:http://www.914world.com/bbs2/html/emoticons/smoke.gif) BTW, nice defrost window. (IMG:http://www.914world.com/bbs2/html/emoticons/aktion035.gif)

bd1308

Nov 10 2005, 02:33 PM

Post #18

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QUOTE (Mark Henry @ Nov 10 2005, 06:07 AM)

Can't be that bad....The teen I got my early SSI's off of was rusted right into the ground. The mild steel flanges were rusted almost right off.

Hot tanked them and TIG'ed new flange's and they looked like new.

the wreck they were found on..... (IMG:http://www.914world.com/bbs2/html/emoticons/ohmy.gif)

grab that rear window (IMG:http://www.914world.com/bbs2/html/emoticons/ohmy.gif) i like those with the heating element inside...

b

tracks914	Nov 10 2005, 09:18 PM Post #19
Canadian Member Group: Benefactors Posts: 2,083 Joined: 15-January 03 From: Timmins, Ontario, Canada Member No.: 153 Region Association: None	Hey Mark, you found the other 1/2 of my car. I still have the serial number from the front half. Attached image(s)

Mark Henry

Nov 10 2005, 09:28 PM

Post #20

that's what I do!

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QUOTE (bd1308 @ Nov 10 2005, 04:33 PM)

QUOTE (Mark Henry @ Nov 10 2005, 06:07 AM)

Can't be that bad....The teen I got my early SSI's off of was rusted right into the ground. The mild steel flanges were rusted almost right off.

Hot tanked them and TIG'ed new flange's and they looked like new.

the wreck they were found on..... (IMG:http://www.914world.com/bbs2/html/emoticons/ohmy.gif)

grab that rear window (IMG:http://www.914world.com/bbs2/html/emoticons/ohmy.gif) i like those with the heating element inside...

b

RW defog is common in Canada (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)

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