What is the difference between the corosion resistance of 316 Stainless Steel T-rod versus 304 Stainless TRod?

Question

3/4-10 Threaded rod.

Answer 1

I agree with Philip's answer above.

An example of how they differ: 316 stainless will last a long time even on a sea boat exposed to salt water, while 304 is at risk of rusting noticeably faster. But in fresh water, 304 can last a long time.

I'd say 304 handles most things just fine: fresh water, food, dirt, etc. 316 is better when dealing with salt and more chemicals, but you better test if the environment is that harsh.

Answer 2

316 SS is more corrosion resistant is almost all applications, but can experience corrosion with some acids.
304 is not as good in most cases but is a lot less expensive, much easier to machine and less expensive to weld.
For economical reasons, don't use 316 if 304 will work.