Yes, we generally consider stainless steel to be a nonporous surface.
Oversimplifying it alot: Iron + Carbon --> High Carbon Steel High Carbon Steel + Chromium & other surface alloy metals --> Stainless Steel Basically Stainless Steel is ordinary Steel with a surface Chrome Steel layer protecting it from corrosion.
stainless steel has chromium added to the steel, which forms a protective oxide layer at the surface, preventing corrosion (rust).
The life span of stainless steel depends on the type of stainless steel, the environment it is located, and the surface treatment. There is micro-pitting that will occur with out effecting the structural integrity of the steel but will tarnish the 'stainless' appearance. If the environment is free of heavy moisture and corrosive chemicals 316 stainless steel will last 1200 years with out significant decay.
Well, the answer lies in the question; by saying 'real' stainless steel, you are implying that there are fake metals which go under the name 'stainless steel', thus the difference is that the stainless steel in refigerators is actually stainless steel, and the fake stainless steel is not...thus your question is answered...
stainless steel
No, Stainless steel is not porous. Steel how ever is.
Oversimplifying it alot: Iron + Carbon --> High Carbon Steel High Carbon Steel + Chromium & other surface alloy metals --> Stainless Steel Basically Stainless Steel is ordinary Steel with a surface Chrome Steel layer protecting it from corrosion.
stainless steel has chromium added to the steel, which forms a protective oxide layer at the surface, preventing corrosion (rust).
Easy. A rod or electrode used in welding stainless steel. Or to "clad" a surface with stainless steel. (Nothing more than laying down a layer or layers of stainless.) MIG wire also comes in stainless steel. Their are different types of stainless steel and rods/wire/electrodes to use on them.
Ajax Glass and Multi Surface cleans stainless steel with little streaking.
chromium
The life span of stainless steel depends on the type of stainless steel, the environment it is located, and the surface treatment. There is micro-pitting that will occur with out effecting the structural integrity of the steel but will tarnish the 'stainless' appearance. If the environment is free of heavy moisture and corrosive chemicals 316 stainless steel will last 1200 years with out significant decay.
There is stainless steel and there is magnaized stainless steel but you can not make regular stainless steel magnetic
The most common types of rods used for welding stainless steel are 308, 309, and 316. 308 rods are best for welding 304 stainless steel, while 309 rods are recommended for welding 309 stainless steel. 316 rods are suitable for welding 316 stainless steel and are also good for general-purpose welding of higher-grade stainless steels.
steel is steel and there is nothing you can do about it even if it is stainless steel or it i not stainless steel it will rust
a varying amount. stainless steel can be a variety of formulations. In general the more corrosion resistant the steel is the higher the chromium content.
Cromargan is a trademark of german company WMF. It is 18/10 stainless steel usually with a blank/reflective chrome like surface. Accordign to WMF, they started shipping 18/10 stainless steel in 1927 under the name cromargan.