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303 Stainless Steel
T-303 is one of the 3 main alloys of commercially available stainless steel. It has mechanical properties that are comparable to both 304 and 316 stainless. The primary reason to use 303 is when you need a stainless steel with machining capabilites better than that of 304 and 316. It has roughly the same corrosion resistance as 304, but not as good as 316. The main drawback with the alloy is that it is not generally considered to be weldable. This material is hardenable by cold work.
304 Stainless Steel
T-304 is the most commonly used stainless in the world. You can find it in everything from forks and knives to backsplashes. It is weldable, machinable with the right techniques, and has good corrosion resistance, but is not for use in salt water environments. This material is hardenable by cold work.
316 Stainless Steel
Also known as marine-grade stainless steel, T-316 is similar in machinability and weldability to T-304, but has far superior corrosion resistance. It has a far higher yield strength than both 303 and 304, meaning that it will not bend as easily. This material is hardenable by cold work.
301 Stainless Steel
There are a lot of stainless steel alloys. We're still trying to think of something interesting to write about this one This alloy is normally used for decorative or ornamental applications, as it has a bright surface finish. Its yield strength is comparable to T-304. This material is hardenable by cold work.
302 Stainless Steel
Under normal circumstances T-304 can be dual-certified as T-302 because the standards overlap. T-302 has better corrosion resistance than T-301. This material is hardenable by cold work.
310 Stainless Steel
This alloy of stainless is chosen primarily for its high resistance to scaling at temperatures up to 2000