Stainless corrosion part 2

[blnorman]

Thanks for the input on corrosion of stainless. Now for the add on. The assembly I analyzed is a 316 "stem" with a "blade" pinned in a slot at the bottom of the stem. The 316 was drastically attacked, but the 302 blade was virtually unharmed (surface roughness in the area of the slot). From research, 302 has a lower nickel content and higher carbon content. Would the higher carbon content prevent the attack in the same environment that destroyed the 316?

 

[TVP]

No. There is some other reason responsible for this behavior.