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Effects of brake fluid on 304 stainless.

Started by Pip, November 04, 2011, 12:08:32 PM

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ducpainter

#30
November 11, 2011, 01:18:53 PM
Quote from: teddy037.3 on November 11, 2011, 11:06:00 AM
'does not equal'  :)

we were taught that CRES only applies to certain grades of stainless steels... like 302, 303 are not CRES. 304, 316 are CRES. 400 series stainless aren't CRES, either.
Along with 347...

It's also magnetic.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Pip

#31
November 11, 2011, 04:13:47 PM
Never heard of 347... What is it used for?
"You can fight a lot of enemies and survive, but not your biology."

Wouldn't fat air be easier to disappear into?

ducatiz

#32
November 11, 2011, 04:24:09 PM
sheet steel, springs, tools
Check out my oil filter forensics thread!                     Offended? Click here
"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the airâ€"these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.

ducpainter

#33
November 11, 2011, 04:32:25 PM
Quote from: The Zombie Pip on November 11, 2011, 04:13:47 PM
Never heard of 347... What is it used for?
When I worked in the fab shop we built a camera base for the Smithsonian.

It was mostly mild steel, but it had a center hub of 347 that had bearings and pivots for an aperture system.

I'm a painter and have no knowledge of the metallurgy or the reasoning behind the choice.

I'm just recalling experience.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Langanobob

#34
November 11, 2011, 06:28:27 PM
Quote from: teddy037.3 on November 11, 2011, 11:06:00 AM
'does not equal'  :)

we were taught that CRES only applies to certain grades of stainless steels... like 302, 303 are not CRES. 304, 316 are CRES. 400 series stainless aren't CRES, either.

OK, Doh...I got the =/= (single equal sign with a slash through it).  For some reason I didn't see it that way when I first saw it, looked like some kind of ASCII Airplane.

In spite of my own vast personal storehouse of important knowledge (ha) I broke down and Googled CRES and found all kinds of conflicting information from many questionable sources.  But it's been a long day and I'm going to let this discussion go.   [drink]

But Stainless Steel, regardless of what it's called, is a fascinating subject.



teddy037.3

#35
November 11, 2011, 09:24:59 PM
Quote from: Langanobob on November 11, 2011, 06:28:27 PM

But Stainless Steel, regardless of what it's called, is a fascinating subject.



I wish our metallurgy class had more useful information. but then, I guess that's what the handbook is for  [beer]

Monsterlover

#36
November 14, 2011, 06:01:32 AM
Quote from: Speeddog on November 04, 2011, 07:58:23 PM
304 is a beyotch to machine, let us know what the shop says.

Cake 8)

Quote from: teddy037.3 on November 05, 2011, 09:59:15 AM
at least it's not inconel

Also cake 8)

carry on

;D
"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**

ducpainter

#37
November 14, 2011, 01:16:32 PM
Quote from: Monsterlover on November 14, 2011, 06:01:32 AM
Cake 8)

Also cake 8)

carry on

;D
Pip...send it to Kev.

It won't even cost a lot since it's so easy.;D
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Monsterlover

#38
November 14, 2011, 01:26:53 PM
Just send the drawing

I have shit loads of 303, 304, 316, duplex, and inconel bar ends here.
"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**

Pip

#39
November 14, 2011, 07:30:41 PM
I don't have a drawing. Can I send you the old piston?  ;D
"You can fight a lot of enemies and survive, but not your biology."

Wouldn't fat air be easier to disappear into?

Langanobob

#40
November 14, 2011, 07:49:36 PM
Quote from: The Zombie Chihuahua Pip on November 04, 2011, 12:08:32 PM
I'm having a replacement brake caliper piston machined from 304 s/s bar stock for my little '76 CB250, as the stock one is chromed carbon steel and has been eaten by years of brake fluid. My question is, will the 304 have enough corrosion resistance to handle brake fluid for years to come? I got a 1.5inch diameter by 7 inch long chunk for free, and need to make sure it can handle this before I get it machined. I would have preferred 316, but 304 is what I got.

Am I good?

Kind of late to be asking, but how is the bore in the caliper?

Monsterlover

#41
November 15, 2011, 02:23:00 AM
Quote from: The Zombie Chihuahua Pip on November 14, 2011, 07:30:41 PM
I don't have a drawing. Can I send you the old piston?  ;D

Yes
"The Vincent was like a bullet that went straight; the Ducati is like the magic bullet in Dallas that went sideways and hit JFK and the Governor of Texas at the same time."--HST    **"A man who works with his hands is a laborer.  A man who works with his hands and his brain is a craftsman.  A man who works with his hands, brains, and heart is an artist."  -Louis Nizer**

Pip

#42
November 15, 2011, 03:40:43 PM
Quote from: Langanobob on November 14, 2011, 07:49:36 PM
Kind of late to be asking, but how is the bore in the caliper?

Bore is good after a little elbow grease. Strangely no rust in there...

Quote from: Monsterlover on November 15, 2011, 02:23:00 AM
Yes

Wait.... seriously???
"You can fight a lot of enemies and survive, but not your biology."

Wouldn't fat air be easier to disappear into?

ducpainter

#43
November 15, 2011, 03:51:35 PM
Quote from: The Zombie Chihuahua Pip on November 15, 2011, 03:40:43 PM
Bore is good after a little elbow grease. Strangely no rust in there...

Wait.... seriously???
Quit asking anything other than the address.  ??? ;D
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


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