Stainless steel and not rubiginous iron is foolish foolish cent is not clear

Stainless steel and not rubiginous iron is foolish foolish cent is not clear

Stainless steel is the floorboard of stainless steel and acid-proof steel normally.
Stainless steel is to point to be able to bear or endure the steel that the weak medium such as atmosphere, vapour and water corrodes, and acid-proof steel is to point to acid-proof, alkaline, salt to wait for the steel that medium of sex of chemical dip corrode corrodes.

Stainless steel comes out at the beginning of this century oneself, already had 90 to now old before history. The creation of stainless steel is international the great success on metallurgy history, of stainless steel begin those who be modern industry with science and technology progress laid principal corporeal skill foundation. Stainless steel steel is planted a lot of, function each different, it formed a few kinds big stage by stage in beginning a process.

By arrangement construction is divided, cent is Martens stainless steel (include deposit and sclerotic stainless steel) , ferrite stainless steel, austenite stainless steel and austenite add stainless steel of ferrite double photograph to wait for 4 kinds big;

A few features in the principal and chemical composition in pressing steel or steel yuan classify, cent is stainless steel of molybdenum of chromic stainless steel, chromic nickel stainless steel, chromic nickel and low carbon stainless steel, tall molybdenum stainless steel, high pure stainless steel;

The function characteristic that presses steel and good are classified,

Press the function characteristic classification of steel, cent is the microtherm stainless steel, stainless steel that do not have magnetism, easy cutting stainless steel, exceed plasticity stainless steel to wait.

The chemical composition characteristic that commonly used now classification method is the arrangement construction characteristic that presses steel and steel and the idea that both photograph combines are classified. Normally cent is martensite stainless steel, ferrite stainless steel, austenite stainless steel, double photograph stainless steel and deposit sclerosis stainless steel to wait, or cent is chromic stainless steel and nickel stainless steel two kinds big. Stainless steel is used at the environment of anticorrosion sex normally, and medical apparatus and instruments and articles for daily use.

Do not become rusty iron
Say easy to read and understandly, do not become rusty iron is the iron that rusts not easily namely, actually one part does not become rusty iron, have already do not become rusty quality, have acid-proof sex again (be able to bear or endure corrode sex) . Do not become rusty of iron do not become rusty gender and be able to bear or endure because its are apparently rich,corrode sex is chromic oxidation film (passivation film) form. This kind does not become rusty gender and be able to bear or endure corrode sex is opposite.

The experiment indicates, iron counteracts the oxidisability medium such as nitric acid in the weak medium such as atmosphere, water in, its are able to bear or endure corrode sex follows Tie Zhongge water content add and progress, when chromic content reachs sure per cent, of iron be able to bear or endure corrode sex happens to change suddenly, become rusty to rust not easily from Yi Sheng namely, never be able to bear or endure corrode arrives anti-corrosive.

Do not become rusty the classified method of iron a lot of
By the arrangement below room temperature construction is classified, have Martens bodily form, austenite model, ferrite and double photograph do not become rusty iron;
By principal chemistry composition is classified, basically can divide do not become rusty for chromium iron and chromic nickel do not become rusty two cardinal principle are iron;

By good cent has be able to bear or endure nitric acid does not become rusty iron, be able to bear or endure vitriolic do not become rusty iron, be able to bear or endure seawater does not become rusty iron is waited a moment,

By be able to bear or endure type cent can divide corrode to nod corrode not to become rusty to be able to bear or endure iron, be able to bear or endure stress is corroded do not become rusty iron, be able to bear or endure corrode between brilliant do not become rusty iron;

By function characteristic classification can be divided again to do not become rusty without magnetism iron, easy cutting does not become rusty iron, low temperature does not become rusty iron, high strenth does not become rusty iron is waited a moment.

Because do not become rusty,iron material is had be able to bear or endure admirably corrode sex, shape the series characteristic such as gender, consistence and the strong endurance inside limits of very wide temperature, be in so profession of heavy industry, light industry, articles for daily use and build decorate in waiting for a profession, obtain obtain extensive use.

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