• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

WTF! My Stainless Steel Spyderco is rusting!

i've had it under a year and there should be nothing that rusts it -- i use it to cut boxes and open packages......

 
Originally posted by: Safeway
It's because you keep it in your pocket. You sweat. Sweat has salt. Salt + water + steel = rust.
Click to expand...

the outside of the knife is fine -- it's the blade that's rusting!

 
If it rusts and the leachate is not caused by proximity galvanism, the principal is the culprit. Therefore the SS is inferior quality.
 
Originally posted by: sharkeeper
If it rusts and the leachate is not caused by proximity galvanism, the principal is the culprit. Therefore the SS is inferior quality.
Click to expand...
In all fairness, there are many different alloys of SS, no? ..

Perhaps the knife's blade is exceptionally strong, but has low corrosion resistance, or something.
 
In all fairness, there are many different alloys of SS, no? ..
Click to expand...

It's not the alloy specification it's the grade. Impurities will cause the product to have subpar corrosion resistance.

This can be a double edged sword. (pun not intended!)

Alloys that are extremely resistant to attack tend not to hold an edge as well. (save for extremely expensive applications that you would never find a knife made of!)

Harder allows tend to have lower resistance to chemical attack and corrosion but again as above, select applications will have superior characteristics and the cost is very high.

Ceramics make for a nice edge IMO.
 
Originally posted by: sharkeeper
In all fairness, there are many different alloys of SS, no? ..
Click to expand...

It's not the alloy specification it's the grade. Impurities will cause the product to have subpar corrosion resistance.

This can be a double edged sword. (pun not intended!)

Alloys that are extremely resistant to attack tend not to hold an edge as well. (save for extremely expensive applications that you would never find a knife made of!)

Harder allows tend to have lower resistance to chemical attack and corrosion but again as above, select applications will have superior characteristics and the cost is very high.

Ceramics make for a nice edge IMO.
Click to expand...


So... knife collector or metalurgist? 😉


 
If your knife blade is magnetic, then it's made of the lower grade, 400 series stainless and it will tend to rust more than a better grade of stainless. Better grades of stainless have more metals blended in to help prevent corrosion.
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top