Stainless steel basket and do not become rusty iron basket distinction

Stainless steel basket and do not become rusty iron basket distinction

Stainless steel is the floorboard of stainless steel and acid-proof steel commonly. 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 old histories to now. The invention of stainless steel is the world the great success on metallurgy history, the development of stainless steel laid important corporeal technology foundation for the development of modern industry and progress of science and technology.

Stainless steel steel is planted a lot of, function each different, it formed a few kinds big stage by stage in developing a process. By the organization the structure is divided, cent is Martens stainless steel (include precipitation sclerosis stainless steel) , ferrite stainless steel, austenite stainless steel and austenite add stainless steel of ferrite double photograph to wait for 4 kinds big; The element of a few features in the main and chemical composition in pressing steel or steel will 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;

Press the function characteristic of steel and utility classification, cent is be able to bear or endure nitric acid stainless steel, be able to bear or endure vitriolic stainless steel, be able to bear or endure the stainless steel that nod corrode, be able to bear or endure stress corrodes stainless steel, excel in stainless steel to wait; Press the functional 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 at present commonly used classification method is the constituent structure characteristic that presses steel and steel and the method that both photograph combines are classified. General component is martensite stainless steel, ferrite stainless steel, austenite stainless steel, double photograph stainless steel and precipitation sclerosis stainless steel to wait, or cent is chromic stainless steel and nickel stainless steel two kinds big.

Alleged " do not become rusty iron " , wait for reclaiming scrap iron, lead, steel to be machined via 2 melt down namely, pass " grow " handle and become, detect traditionally the method is to use magnet, and this is tasted using traditional method cannot discern, nature is practise deception, blindfolded numerous project select material, the ground of because of this emperor entered an another adornment building site, ascended a wall of another luxurious act. This name is from " focal interview " be born after exposure, and holding the market share of about 65% , and product of real GB SUS304 stainless steel because the price is higher and without the market.

The market is at present medium " do not become rusty iron " the product can own the share of 65% is the effect with the main move since its price, show product of GB stainless steel every tons price is controlled about 20 thousand yuan, GB every tons of price makes an appointment with 7075 aluminium alloy to be controlled for 16 thousand yuan, and " do not become rusty iron " the price is every tons only 5000 - 7000 yuan; The tensile strength that sees these 3 kinds of material pledge again then is respectively: GB stainless steel 530 - 620MPa, GB 7075 aluminium alloy 540 - 560MPa, "Do not become rusty iron " 160 - 180MPa. Apparent " do not become rusty iron " the 1/3 intensity that tensile strength returns short of stainless steel, bring about accident happening extremely easily. 　　

Consequently, building engineering industry, should ban stoutly " do not become rusty iron " goods.

Read out: Www.onsonhardware.com