Common sense of introduction of bearing stainless steel, useful, you understand!

Common sense of introduction of bearing stainless steel, useful, you understand!

Stainless steel definition
Stainless steel is one kind can revolt cankerous tall alloy steel. Have beautiful appearance, need not pass plating color or paint substandard expresses processing, so a lot of machinery plants are those who make clear his is stainless steel, do not make any paint processing normally, and black capable person (alleged black capable person is namely normally steely title) be to be necessary to undertake antirust processing.

The handy classification of stainless steel
Stainless steel can be divided easy to read and understandly for 200 series, 300 series and 400 series 3 kinds big, meantime 300 series are the most commonly used, 200 series and the substitute that 400 series are 300 series on sure Cheng, and severity will tell 400 series not to make stainless steel, make do not become rusty iron, because inside do not contain nickel element, use magnet to be able to be attracted so. And 200 series and 300 series have nickel, do not have magnetism so, suck iron to be not sucked.

304 it is the breed that sees at most in 300 series, change from the quote of 304 normally so can the quoted price that differentiate gives all stainless steel goes situation. 200 series contain nickel little, 400 series do not contain nickel, 300 series contain nickel most, suffer nickel price to affect so the biggest is 300 series.

300 series can brief cent is 304, 304L, 316, 316L, 321, 309S, 310S is waited a moment, the content that the basis of difference is all sorts of tantalum is not identical, the character of the stainless steel with not identical content is not identical also, the 304 difference with 304L depend on carbon (C) of content not identical, those who take L is to make clear contain carbon low, also make low carbon, the 316 difference with 316L also are identical.

The appearance of stainless steel is classified
Stainless steel can be divided to coil board, plank, profile, steel tube and component 5 kinds big, the most principal is coil and board. Profile is namely by board of make it all sorts of not identical model the data of shape, have angle iron, flat steel, I-steel, channel. If steel tube head points to seamless steel tube, with seamless steel tube opposite is solder canal namely, difference depends on whether shaping. Component is principal it is to point to bend and flange and other dot.

Roll on material and plank practice identical, leave factory way is not same stopped, roll material is hank hank namely, plank is a piece a piece, if leave factory,be plank namely, also call former outfit board, it is thick normally board, because of very thick word, it is to cannot be become coil, normally 16 millimeter above cannot be become coiled.

Have coil, have board, a lot of time are board, coil and board quote also is not identical, if be to buy,coil, weigh heavy business accounting by practice namely, quoted price is so high, board be business accounting of according to theory, quoted price is low, the element is to have next difference, be like the practice with thick 10mm may be 9.6mm, this center can have price difference.

Stainless steel board basis rolling mill (the machine name that rolling mill is rolling board) of rolling technology not identical, hot-rolling of share out bonus and cold rolling, hot-rolling normally mark is 2B for mark of NO.1 cold rolling probably BA(BA is better than the appearance of 2B, should shine, get close to mirror, first-rate is lens face namely, lens face does not have merchandise on hand, demand machines) , for example a lot of 304 time are to buy board, that is meant roll be necessary to leave through the machine make the same score board means, this kind of machine is an equal opportunity namely. Make the same score through opening equal opportunity can open not identical length, if not be traditional length,make be decided, the meaning is to drive measure surely namely, because client basis fulfils requirement, constant regular meeting puts forward not identical length to request, this time coils to appear principal, of the convention board cannot satisfy a request.

Homebred cold rolling is normally under 3 millimeter, hot-rolling is in normally 3 millimeter above, of 3 millimeter ply have hot-rolling already, also have cold rolling, can be of the entrance ply of cold rolling board can arrive at 4 millimeter the following and even 6 millimeter are the following. 3 millimeter go to hot-rolling of 12 millimeter board make medium plate, of 12 millimeter above cry thick board, can thick to 120 millimeter above, in weighing hot-rolling thick board, and cold rolling is cold rolling thin plate namely.

Stainless steel board the method of handy business accounting of academic weight
Board ply of × of heavy = proportion (Mm) × width (M) × length (the unit that M)(mm is millimeter, m is the unit of rice)
In project machine because the domain stresses precision measure, millimeter is used to be an unit on the world rice of 1000 millimeter =1, silk of 1 millimeter =100.

The weight that by this formula reachs is kilogram (KG) , want accurate to decimally hind two, because stainless steel quote is expensive, trade the amount is large, decimally the figure after is very first also, consequently debt also wants accurate to decimally hind two.
The proportion of stainless steel (KG)

The elemental content in GB title is the central value that points to content normally, for theoretical value, but can small.
What calls public service
This is a very first name, public service is accepted namely the length that agree or ply error. Because be in of plank produce in the process, it is very difficult to stem from all sorts of elements. The practice ply that come out is the ply of short of theory normally, for example of 6 millimeter board, want 5.6 millimeter only, this is public service namely, in home public service is negative public service namely normally, also have of course public service, can be very few. It is when business board, it is to talk ply to come normally normally business accounting, this also is the factor that for what theory valence comparing weighs high price is low, public service still has the branch of large and small, quoted price is not same also, the quote of great public service is cheap. Illustrate, of 6 millimeter, if be 5.5 be great public service namely below.

1, dimensions of 304/2B public service sees next tables
The character of breed of principal stainless steel and good
304: Regard a kind of good as comprehensive steel products, have be able to bear or endure crackajackly corrode sex, hear resistance, microtherm intensity and mechanical sex, punch, it is good to wait for hot-working sex zigzag, without picture of heat treatment sclerosis, without magnetism, use temperature 0 times 193 degrees arrive 800 degrees.
Good: ?

304L regards mild as 304 steel, in normally condition falls, be able to bear or endure corrode sex and 304 about the same, but mix after solder after eliminating stress, it fights a brilliant caustic good, below the case that did not have heat treatment, also can insist to be able to bear or endure crackajackly corrode sex, fall in 400 degrees normally apply,
Good: Petrifaction industry, building materials.

321 Ti element is added in 304 steel, will avoid a brilliant to corrode, apply to 430 to 900 degrees the following, without magnetism;
Good: Car exhaust, heat exchanger, the container merchandise that heat treatment does not have after soldering, because attend Ti element, unsuited production food machines equipment.

316 low carbon, add MO element, so his be able to bear or endure corrode sex and be able to bear or endure sex of atmospheric corrosion t and function of high temperature intensity are good all the more, can apply below severe exacting condition, suit to be applied below in 900 degrees, without magnetism.
Good: The device that uses in seawater, chemical industry, dye, papermaking, acetic acid, fertilizer produce equipment, food industry and foreland equipment, contrary brilliant is corroded have the merchandise that requests all the more.

309S/310S these two kinds of raw material, nickel and chromic content are higher, add the content of Si at the same time, make its are had high temperature resistant and be able to bear or endure corrode sex, meantime 309S can be accepted 980 heat repeatedly below, 310S applies temperature to arrive at 1200 degrees, apply temperature to be able to be in 1150 degrees one after another, without magnetism.
Good: Equipment of applicable muffle furnace, the crucial position such as dryer, furnace uses a data, aviation, petrifaction, electric power.

200 series are similar to economy of 304 quote petty gain.
Good: ?  of  of blessing of uncut jade of commonplace ど of settleclear adze of  of blessing of Ke Pu of  of  of Xi of human skeleton of て of settleclear adze commonplace is like  of the first month of Tuo of  of Xu of calm of sole  D  of sole of  of person of  of  of Mei of  of salary of the dumb hurry that punish  is planted  of Xu of target of ㄗ of  of duckweed appropriate sword leavessing of pulse plants, endurance is inferior to 304,

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