The difference might have to to with mineral crystal formation [growth] on a like patterning substrate and nothing at all to do with nickel or chromium. If mineral crystals "want" to be a certain size, they'd tend to suck like dissolved minerals out of water better???? Then, after reaching an optimum size...don't.
Nickel and chrome in stainless steel is generally very stable. Revereware is apparently Austenitic..also Presto stainless pressure cooker. 'could be' chromium-manganese-low nickel steel Care of stainless: http://www.srsmith.com/residential/product_care_maintenance.html Info on why chlorine is not a good thing with stainless. [Why stainless is stain-less and what stains it] http://www.howtobrew.com/appendices/appendixB.html Ode General Information Stainless steels are high-alloy steels that have superior corrosion resistance than other steels because they contain large amounts of chromium. Stainless steels can contain anywhere from 4-30 percent chromium, however most contain around 10 percent. Stainless steels can be divided into three basic groups based on their crystalline structure: austenitic, ferritic, and martensitic. Another group of stainless steels known as precipitation-hardened steels are a combination of austenitic and martensitic steels. Below are the general compositional contents of these groups. Grades Ferritic grades: Ferritic stainless steels are magnetic non heat-treatable steels that contain chromium but not nickel. They have good heat and corrosion resistance, in particular sea water, and good resistance to stress-corrosion cracking. Their mechanical properties are not as strong as the austenitic grades, however they have better decorative appeal. Martensitic grades: Martensitic grades are magnetic and can be heat-treated by quenching or tempering. They contain chromium but usually contain no nickel, except for 2 grades. Martensitic steels are not as corrosive resistant as austenitic or ferritic grades, but their hardness levels are among the highest of the all the stainless steels. Austenitic grades: Austenitic stainless steels are non-magnetic non heat-treatable steels that are usually annealed and cold worked. Some austenitic steels tend to become slightly magnetic after cold working. Austenitic steels have excellent corrosion and heat resistance with good mechanical properties over a wide range of temperatures. There are two subclasses of austenitic stainless steels: chromium-nickel and chromium-manganese-low nickel steels. Chromium-nickel steels are the most general widely used steels and are also known as 18-8(Cr-Ni) steels. The chromium nickel ratio can be modified to improve formability; carbon content can be reduced to improve intergranular corrosion resistance. Molybdenum can be added to improve corrosion resistance; additionally the Cr-Ni content can be increased. At 10:25 AM 12/9/2005 -0700, you wrote: > >Interesting question. I should run a 'real' test but it seems to me I >get better DW from my distiller if I let it get a little crusty, the >lowest uS readings come in about the middle, when some deposits have >developed but before they get extreme. Stop on in and visit! www.silverpuppy.com www.colloidal-silver-generator.com -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.1.371 / Virus Database: 267.13.13 - Release Date: 12/9/2005 -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: [email protected] Address Off-Topic messages to: [email protected] The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour <[email protected]>
