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Old 12-26-2007   #9 (permalink)
GTJIM
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304 Grade SS

Originally Posted by oldopelguy View Post
Wonder what grade of stainless it really is.
They mention 304 grade - also known as 18/8 - which is 18 to 20% Chromium and 8 to 11% Nickel. A very good grade for the job.

Here is a quote from a stainless steel website (Source: Atlas Steels Australia):

"Grade 304 is the standard "18/8" stainless; it is the most versatile and most widely used stainless steel, available in a wider range of products, forms and finishes than any other. It has excellent forming and welding characteristics. The balanced austenitic structure of Grade 304 enables it to be severely deep drawn without intermediate annealing, which has made this grade dominant in the manufacture of drawn stainless parts such as sinks, hollow-ware and saucepans. For these applications it is common to use special "304DDQ" (Deep Drawing Quality) variants. Grade 304 is readily brake or roll formed into a variety of components for applications in the industrial, architectural, and transportation fields. Grade 304 also has outstanding welding characteristics. Post-weld annealing is not required when welding thin sections."

So it looks like they are using the correct grade for this application!
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Last edited by GTJIM; 12-26-2007 at 12:25 PM.
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