Identify the error of stainless steel data and purchase a point

Which kinds of stainless steel is just first-rate stainless steel?
Also regard this doubt as because ask this doubt oneself held a misunderstanding in the arms originally,everybody's misunderstanding puts forward is. That is sure namely the first-rate stainless steel that what thing cannot corrode it exists. Original, this idea is incorrect, at least, what understand with respect to me, perfect without this kind stainless steel exists. Every kinds of stainless steel has its specific application field, have its program intention. The data develops the time of the program, plan as a whole impossibly everything, capital, be able to bear or endure corrode, figuration, solder, plan as a whole very hard normally. Even if is sheet looks be able to bear or endure corrode, produce
Taste development composition to plan to plan as a whole impossibly also to corrode a type to everything. And can be to accomplish only choose somewhat somewhat lay particular stress on, if be able to bear or endure to rise,the ability that nod corrode can add Mo, be able to bear or endure to rise ability is corroded to add Ti, Nb to wait a moment between brilliant. Original basis of these composition different, stainless steel distributes a lot of brands, amount to hundreds kinds. Among them we encounter have the following kinds at most:
304 the most classical stainless steel, we are encountered most, 17% -- 19%Cr, 8 -- 11%Ni, the market quotes nowadays about 3-4W/t.
316 be able to bear or endure seawater is corroded, than 304 added Mo, quote 6W above. 301, 302, than 304 have taller C content, be able to bear or endure corrode is corresponding also slightly low.
321 add Ti, Nb to add weldability, once contrasted in home be current, faded stage by stage nowadays. Estimate everybody to encounter contrast much with respect to these a few kinds.

4, how to differentiate different type stainless steel
Does this doubt also calculate misunderstanding? Right. Because light relies on naked eye, you are very difficult distinction different of type stainless steel. It is impossible almost. Besides can basis magnetism is brief distinction is be attributed to austenite stainless steel still is other breed beyond, even if is the expert that makes stainless steel, even if be the old old expert that did all one's life, also cannot distinguish. Want distinction to be able to pass special apparatus only. Of course, wife the basis quotes all right, have wait a moment without magnetic, producing area can reckon about, but cannot understand very much to you for certain very the key that keeps a bank note.

Is stainless steel sure won't rusty?
The public still has the error with a big contrast, that is stainless steel namely sure won't rusty. Original, the job with the rustily stainless steel that I take over is too much and too much. And everything what I take over these stainless steel are rustily in disturbance, because the user understands stainless steel not quite,be namely partly greatly very, the time that uses material in select material did not consider the character of stainless steel data, use abusive stainless steel in disorder, cause stainless steel fit abnormality is rustily.
Known to all, in general atmosphere environment, as long as it is eligible (accord with national level) stainless steel, won't rust. Because stainless steel contains a lot ofa kind of main alloying element Cr,this is (content of stainless steel Cr must be in 13% above, otherwise unwarrantable its are able to bear or endure outstandingly corrode sex) , cr can make a compact passivation film in stainless steel appearance, safeguard stainless steel to be corroded not easily.

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