Why magnetic stainless steel and rust problems
     The basic concept of consumer awareness for something more than the stainless steel material No. 3, with no prefix will not produce magnetic rust, 4 words but will produce a magnetic head with rust, or as long as the label should not produce stainless steel rust impression.
     Essentially, the basic functions of the stainless steel is more resistant to corrosion than ordinary steel, hardness or elasticity of steel is more malleable than the average, depending on its use of the material is made to meet our needs. As we previously described in stainless steel grade grouping mentioned steel use in general household goods mostly Part No. 430/304/316, etc. ... Part numbers are as follows:
 
Model 430 - ferritic stainless steel, decorative, magnetic tools, such as for car accessories. Good formability, but poor heat resistance and corrosion resistance, suitable fasteners, cutlery, furniture supplies. The standard chemical composition of 16 to 18% chromium, namely 18-0 stainless steel, low carbon content. Such magnetic stainless steel.

Model 316 - After 304, the second most widely used types of steel, mainly used in the food industry and surgical equipment, adding Mo to obtain a special corrosion-resistant structure. As the more than 304 it has better resistance to chloride corrosion and thus as "marine steel" to use. 18/10 to 18% chromium stainless Level 18-12 +10 +3% to 12% nickel, molybdenum, usually in line with the application level.
 
Model 304 - Universal Model; 18/8 to 18/10 grade stainless steel. Products such as: corrosion resistant containers, utensils, furniture, railings, medical equipment. Standard ingredients are 18% to 10% nickel chromium +8. Raw material is non-magnetic, but processed after finished weakly magnetic stainless steel. ~ The above article is taken from Wikipedia content with a certain degree of credibility and therefore recognized ~

     In simple terms, these models only the most primitive of the steel substrate, subject to the cutting / punching / pumping high / polishing and other multi-channel processing procedures, and finally to the hands of consumers is the complete finished product. The reason No. 430 stainless steel material itself has magnetic base, so it's processed before processing in magnetic strength than some, 304 for the non-magnetic substrate, there will be a little weak magnetic After processing, the resulting weak magnetism is due in process, decomposition of the molecular structure of the stretched original arrangement, arranged as the original molecule + - + - + + but the processing becomes after + or --- the arrangement, for example Pot material substrate is a plate 304 having a thickness of assumptions after pumping high processing 0.5MM 10CM, assuming that the thickness becomes 0.25MM, magnetic pot to pot the mouth than the magnetic or non-magnetic lower because of the higher pumping integrally molded, it is high at the bottom, from weak magnetic strong, but weak suction than 430 still to come. Focus is on the bottom of the material does not absorb 304, the higher the office, the more stronger! 430 material is sucked from the beginning in the end, are interested in picking up the pot at home and take a look at 304 430 difference.
     As for the rust problem, no matter how good the home of stainless steel in an inappropriate environment, it can not withstand excessive force erosion and water quality basic , Taiwan head to tail in Taiwan , the regional water quality varies, soft water , hard water , PH value is high or low, chloride, fluoride , mineral values, etc. ... more or less crystalline surface layer of stainless steel / rust variables , furthermore home to install water filters, such as electrolysis / Maifanshi / nano etc ... complex variables , most commonly rust conditions encountered are kept dry from lack of use and no factor in the majority, followed by rust, pitting many people will be treated as rust, stainless steel is not fair. [ As long as scouring pads or fine sandpaper to rub off the rust ] can only be regarded as , say, a dedicated cooker pot , which is used to do 304 do 430 pot body cladding exterior pot , pot under the same environmental conditions, external cladding of 430 under conditions not completely dry , prone to rust on the bottom 430 , because 430 Part Number poor corrosion resistant materials , surface rust easily oxidized form , yet it is able to respond to the magnetic induction cooker , rust will not produce with magnets will suck nothing but help analyze steel magnet material number , only to do maintenance is to prevent rust and dried to produce the key.
     
430 proposals will suck the material after drying washing, and then roasted getters small stove water dries up completely, so there is not rust generated status.