Stainless steel 304 vs. 316, which is better? Well, it depends on the application and needs.
The mechanical properties of both steel sheets are almost the same, and both have similar makeup material. Still, type 316 has more nickel than type 304 that helps 316 types resist more against chlorinated solutions such as seawater and de-icing salts.
For industrial use and commercial appliances, type 316 is better than 314 for its increased corrosion resistance. It has more resistance to chemicals and is considered superior to type 304 when it comes to exposure in salts and other chlorinated solutions. For marine applications, type 316 is ideal because type salt in the sea can damage the oxide layer of 304 types, leading to rust. That is the main reason why type 316 is a bit expensive as compared to type 304.
On the other hand, 304 types have a melting point higher than type 316 (50 to 100 °F higher than 316 types). 304 type is commonly used for residential appliances and indoor architectural hardware. Type 304 is better for the applications where chlorinated solutions are not a concern as it is less expensive than type 316.
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