What function characteristic does stainless steel round steel have?

Business accounting of stainless steel round steel is formulary:
The W=0.00617*D*D of business accounting formula of stainless steel round steel
W= adjustment heft; D= diameter Mm;
One, the overview of stainless steel round steel
Stainless steel round steel is attributed to senior capable person a kind, be attributed to great ability again a kind, so called stainless steel is round steel is the senior capable person that shows cross section is even circle, grow about 4 meters normally. It can divide the circle that it is light and black club. So called light is round, it is to show appearance is lubricant, be handled through following press hard against each other and come. And so called black club, it is to show appearance is black thick, direct hot-rolling and come. See raw material is more 301, 304, 303, 316, 316L, 304L, 321, 2520, 201, 202 etc. If “50” shows the diameter is the round steel of 50 millimeter namely,the standard makes clear with the diameter. Round steel cent is hot-rolling, forge and cold pull 3 kinds. The standard of hot-rolling round steel is 5.5-250 millimeter. Stainless steel round steel applies distant view broad, be used extensively at metals kitchen utensils and appliances, shipbuilding, petrifaction, mechanical, medicine, food, electric power, motivation, spaceflight to wait, the building is decorated. Equipment, chemical, dye, papermaking, oxalic acid, fertilizer is used in seawater etc produce equipment; Illuminate picture, lever of equipment of food industry, coastal region, cord, CD, bolt, nut.

2, the kind of stainless steel round steel that sees more and character
1) steel of 310S stainless steel circle is characteristic: 310S stainless steel is austenite nickel stainless steel has chromium to fight oxidisability, corrosion resistance wonderfully, because of the chromium of higher percentage and nickel, 310S has had much creep strength, can continue to work below high temperature, have crackajack high temperature resistant quality.
2) steel of 316L stainless steel circle is characteristic: 1, glossiness of exterior of cold rolling commodity is good, beautiful; 2, because increase Mo, anti-corrosive function, be able to bear or endure especially the function that nod corrode is exceedingly good; 3, the treatment sclerosis sex with high temperature exceedingly good; 4, superior strength (treatment hind weak magnetism) 5, solid dissolve state does not have magnetism;
3) 316 stainless steel round steel are characteristic: 316 stainless steel are afterwards 304 later, the 2nd gets the steel that uses the most extensively is planted, principal use at food industry and surgical operation parts of an apparatus, because increase Mo, reason its are able to bear or endure corrode sex, be able to bear or endure sex of atmospheric corrosion t and high temperature strength are particularly good, can apply below the condition of exacting cruel; Machine sclerotic sex to actor or actress (without magnetism) .
4) 321 stainless steel round steel are characteristic: Ti increases in 304 steel yuan prevent crystal boundary to corrode, agree with 430 ℃ - apply below 900 ℃ temperature. Besides because increased titanium element to drop data welding line other function is similar besides rustily danger 304
5) function of steel of 304L stainless steel circle: Steel of 304L stainless steel circle is the mutation of the 304 stainless steel with carbolic inferior content, with the circumstance that solders at demand. Inferior carbolic content makes the carbide that affects separate out of the place in the area in the heat that is close to welding line is decreased to at least, and the separate out of carbide perhaps brings about stainless steel to be corroded between brilliant of the generation in certain environment (weld corrosion) .
6) 304 stainless steel round steel are characteristic: 304 stainless steel are to apply a kind of most extensive chromium - nickel stainless steel, have be able to bear or endure crackajackly intensity of corrode sex, hear resistance, low temperature and physical characteristic. Anti-corrosive in atmosphere, if be industrial sex atmosphere or heavy pollution area, criterion demand is cleaned in time corrode in order to prevent.


3, of stainless steel round steel corrode
Outside and adherent dust particle can advance stainless steel corrode. When particle of outside existence dust, in grit accumulation place forms aperture, insist simply to contain the water film of chloric ion, prevented oxygen make up for, cause passivation film damage. Other, deliquescent area and this passivation area that approach grit accumulation point can form block batteries to accentuate the formation of the hole that nod corrode and begin.

4, the processing of skin of oxidation of stainless steel round steel
⑴ gush is arenaceous (bolus) law: Head if choose spurt is small the method of vitreous bead, the black oxidation skin of eliminate appearance.
⑵ chemical law: The pickling passivation that applies a kind of free from contamination creams and normal temperature does not have the contains inorganic to add an agent clear lotion of harm to undertake dip wash. The Bai Hua that arrives at stainless steel nature thereby handles an intent. Basically looking after processing is good is one nonluminous colour and lustre. This kind of method is more applicable to large, mixed and disorderly commodity.

5, the fulfilling of stainless steel round steel is normative
GB of stainless steel round steel: GB/T14975-2002, GB/T14976-2002, GB/T13296-91 beautiful mark: ASTM A312/A312M, ASTM A213/213A, ASTM A269/269M

6, the processing of stainless steel round steel
Industrial face plays side of filar face light but again polishing

7, the business accounting of stainless steel round steel is formulary
Cost accounting:
*[1- of round steel quote (10- is folded rate) / labour of 10]+ make friends is expended + polishing is expended + scale is expended + pack + carry
Heft business accounting: Round steel
0Cr18Ni9 00Cr19Ni10
7.93 meters (Kg) ＝ 0.00623D×D
SUS304 SUS304L TP304 TP304L
0Cr17Ni2Mo2 00Cr17Ni14Mo2
7.98 meters (Kg) ＝ 0.00627D×D
8, the operation form of stainless steel round steel
In stainless steel round steel produce to be held actively in controlling a system, on operation method, to different operation environment and exercise intent, operation form more and more refine, principal cent is the following 4 kinds: (1) active form: Just issue ability steel rolling in this kind of form, this also is only normally can the condition that normal steel rolling produces; (2) imitates operation form: Its are principal the intent is to offer operation personnel to be with test and verify before steel rolling each work is covered having a roller, movement state that cuts the movement such as machine to fulfill an orgnaization is normal, and initiative state is accurate, rolling is held accusing is abnormal; (The form other 3) machine: Beside machine exercise form falls, can solid handle of operation spot classics is moved nowadays hold accuse to complete action of a few equipment, if procumbent, scroll is cut machine, change roller to wait; (4) caboodle builds a form: Repairing a form do not use steel rolling, just be equipment of examination of in order to and its movement condition, have the character with electric equipment and mechanical concatenate at least.

9, stainless steel round steel produces technical characteristic and flow
Stainless steel round steel (≤40mm club) choose Morgan type 45° 2 roller or the Si Sangun that take an examination of a gram (Y) rolling mill changes a technology to produce one after another. Normally commodity standard coils for 5.5 ～ 40mm material. Finish rolling speed is stainless steel of ferrite of S(of ∕ of 50 ～ 60m) or) of stainless steel of austenite of S(of ∕ of 70 ～ 60m. Because choose,do not have change rolling, the outside quality of commodity of stainless steel round steel is shining, measure precision is tall. Error of diameter of ≤ø20mm line great ability can arrive at ±0.1mm, ø40mm great ability can arrive at ±0.2mm, dish can arrive at 2t again. Produce in detail technical flow process: Billet preparation, heat, except scale, roughing, cut head, medium make friends, cut library of head, finish rolling, reel-up, heat treatment, pickling, person.

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