Will SA 268 TP430 Stainless Steel Seamless Tubing rust? In general, 430 stainless steel will not rust. SA 268 TP430 Stainless Steel Seamless Tubing has the ability to resist atmospheric oxidation---that is, stainless, and also has the ability to resist atmospheric oxidation. It is the ability to corrode in the medium of acid, alkali and salt - that is, corrosion resistance. However, the size of its anti-corrosion ability is changed with the chemical composition of its steel itself, processing state, use conditions and the type of environmental media.
If there is rust, you need to consider whether there is a problem with the stainless steel you bought, and whether the storage place is in humid air. Buy an anti-rust paste in the stainless steel market. Applying it on the 430 material can basically prolong the rust time.