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Type 316—the second most common grade (after 304); for food and surgical stainless steel uses; alloy addition of molybdenum prevents specific forms of corrosion. It is also known as marine grade stainless steel due to its increased resistance to chloride corrosion compared to type 304. 316 is often used for building nuclear reprocessing plants.
Sulfuric acid is one of the most-produced industrial chemicals. At room temperature, type 304 stainless steel is only resistant to 3% acid, while type 316 is resistant to 3% acid up to 50 °C (120 °F) and 20% acid at room temperature. Thus type 304 SS is rarely used in contact with sulfuric acid.
SAE 304 stainless steel is the most common stainless steel. ... The difference between 304, 304H, and 304L is the carbon content, which is < 0.08, < 0.1, and < 0.035% ...
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Ferritic stainless steel [2] [3] forms one of the five stainless steel families, ... 409 / 410 7.7 0.58 25 460 12 220 430 7.7 0.60 25 460 11.5 220 430Ti / 439 / 441
300 series stainless steels are the larger subgroup. The most common austenitic stainless steel and most common of all stainless steel is Type 304, also known as 18/8 or A2. Type 304 is extensively used in such items as cookware, cutlery, and kitchen equipment. Type 316, also known as A4, is the next most common austenitic stainless steel.