The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1960 - 1966 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-02-2020, 08:16 PM   #1
Steeveedee
Who Changed This?
 
Steeveedee's Avatar
 
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,946
Re: Stainless Steel sheetmetal bolt kits- do they rust?

It is important to note that both 400 and 300 series stainless steel still contain iron. 300 series has enough chromium that the material exposed to oxygen forms a face-centered cubic molecular structure, so that the chromium gets the oxygen and then blocks the oxidation of the deeper structure, in much the same way that aluminum will not continue to corrode once a layer of oxide forms on the surface. Galling of stainless fasteners has to do with the similar metals slightly welding with friction. If you use different alloys of stainless (say, 304 bolts and 316 nuts), you can avoid this issue. Anti-seize is fine to avoid the galling problem if one used the same alloy for all the fasteners. Chromium on vehicles is only a few millionths of an inch thick, so eventually the oxygen in the air will get to the base metal. And yes, a sufficient amount of chromium in your stainless will reduce its magnetic moment. Interesting fact- nickel metal (not coins- they are an alloy of copper and nickel) is attracted to a magnet just like iron.
__________________
~Steven

'70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper

Simi Valley, CA
Steeveedee is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:31 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright 1997-2025 67-72chevytrucks.com