316 stainless steel1/3/2024 The graph below shows both the high degree of variation in corrosion resistance between manufacturers of 316 stainless steel and the corrosion benefit of the Dursan coating. That's why not all stainless steel is created equally. Unfortunately that practical error results in product and heat lot variation that can significantly impact corrosion resistance. This is a reflection of manufacturing capability, measurement practicality and cost efficiency which all roll up to a specification that when the material composition falls within the specified range will be called 316 stainless steel, or 316L stainless steel.* Notice that stainless steel (and other alloys) are specified in allowable ranges. The graph below from an AK Steel product data sheet is an example of a typical summary of the composition of 316 stainless steel. Go to any materials handbook and you'll find the composition of 316 and 316L stainless steel. What you may not know is that 316 stainless steel corrosion rates can vary depending on manufacturer. Stainless steel is known to be corrosion resistant, but its performance can vary depending on the type and duration of chemical exposure. How the Dursan® coating can significantly improve the corrosion resistance of 316 stainless steel and reduce the corrosion rate variation between manufacturers and heat lots.Determine the corrosion rate of uncoated 316 stainless steel when immersed in bleach.How 316 stainless steel corrosion resistance can vary by manufacturer.In this study we found the corrosion rates, despite manufacturer, became similar after coating, whereas one manufacturer's bare disc was clearly superior to another manufacturer. The two lots can be leveled onto the same “playing field” by coating them with Dursan®. A study involving bleach corrosion, found that two different heat s of stainless steel had dramatically different corrosion rates. SilcoTek® has previously shown that not all stainless steel is created equally. And we find out how to level the playing field.Ĭomparing the Corrosion Resistance of 316 Stainless Steel In this blog post we compare the corrosion resistance of 2 stainless steel manufacturers. ![]() Not all 316 stainless steel is created equally.
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