304 stainless steel welded pipe as 司海a stainless steel hea道作t resistant 媽來steel is used for f們但ood equipment, gene地上ral chemical equip外北ment, and atomic ene相志rgy industri跳科al equipment.
304 stainless steel is m鐵厭ore resistant 通劇to rust than 200 serie村裡s of stainless s要動teel. High temperatu讀城re resistanc分男e is also better, 輛畫can be up to 1000-1紙城200 degrees.森頻 304 stainless s吧購teel has excellent corrosion resis資醫tance and better intergranular cor女紅rosion resistance.
304 stainless steel mate說就rial concentrati白計on of more than 65% of boiling t舞生emperature following nitrate, with stro醫時ng corrosion resi務慢stance. It al照多so has good corr我線osion resistan的些ce for alkali sol吃服ution and most organi音湖c acids and inorganic acid商現s. A high alloy市學 steel corrosion resistance 山很in the air or chemical corro說黃sion, stainless steel is a bea區她utiful surface and good corrosion 歌嗎resistance, without不站 plating surface treatment, its inhere討腦nt surface properties of stain師票less steel, used in many報紙 aspects of steel, often called stai少用nless steel. Represents the pr你喝operties of 13 s照低teel, chromium nickel 你見steel and high林從 alloy steel 18-8.
Weight formula for stain女地less steel welded pipe要為: [(outer dia訊近meter - wall thickness) * w遠河all thickness]*0.02491=kg爸很/ meters (weight去技 per meter)
304 stainless steel welded pipe theory了暗 weight calculation formula: (outer di亮件ameter - wall thickness) x wall 件錯thickness * 0.02491= per 如都meter weight (kilogram
Folding stainless steel wel業吃ded pipe factory telephone: 18118868886亮來 different contact.304 stainless stee開睡l welded pipe is a brand of stainless 坐答steel produced according to th人離e ASTM standard of the United States舊算. The 304 stainles請讀s steel welded pipe is equivalent to th船頻e 0Cr19Ni9 (0Cr18Ni9) sta睡畫inless steel welded pip老也e in China. 304 chromium conta我話ining 19%, containing信書 nickel 9%.
304 stainless steel welded pipe 樂飛is the most widely used as the st月空ainless steel heat-resistant 爸紙steel, food equipment, general chemic文厭al equipment, atomic energy indus通謝trial equipment.區刀
The 304 stainless steel wel鄉拿ded pipe is a versatile s舞到tainless steel welded pip鐘新e. It is widely used光相 to produce equipmen物物t and parts that require good compr道湖ehensive properties (cor金還rosion resistance and 體拍formability).
304 stainless steel wel女玩ded pipe is the most widely used s店呢tainless steel聽朋, heat-resistant steel. It i醫輛s used in food prod視從uction equipment, ch這錢emical industry equip西讀ment, nuclear energy and so 子村on.
304 stainless steel we年湖lded pipe chemical composition sp也校ecification C Si Mn P S Cr Ni (nickel知制) Mo
SUS304 = 0.08 = 1 = 2 = 線下0.05 = 0.03 18.00-20分家.00 8.25~10.50
From metallographical analysis, stai劇雨nless steel contain就生s chromium to form a thin 是黃chromium film on the surface, which se場習parates the oxygen from the s飛器teel and acts as an a懂內nticorrosive師民 agent. In order to 人下maintain the corrosion res下妹istance inherent to the s月短tainless steel,嗎路 the steel must contain more than 12%和山 chromium.
Folding stainless steel welded 還員pipe factory tele請朋phone: 18118868886不房 performance analysis..作坐304 stainless steel welded pipe has 師讀good intergranular corrosion resis他熱tance, excellent corrosion 現的resistance, cold working and stam熱讀ping perform為店ance. It can be used as heat resist熱間ant stainless steel. At the sam站志e time, the mechanical pro訊湖perties of the steel at -180 C are st訊雜ill good. In solid solution state, 訊為steel has good plasticity, toug高們hness and cold workabilit西內y. It has good corr喝我osion resistance in oxidiz謝信ing acid and atmosphere, water and oth吃書er media. Therefor信雪e, the production and consum熱綠ption of 304 sta河吃inless steel is the largest and the mos水相t widely applie電要d steel species.
304 stainless steel has good co這科ld and hot wo科水rkability. It can produce a中商ll kinds of metallurgical p見錢roducts such as f道店orged bar, bar, wire, plate,西身 strip and wire by using all k吧錯inds of cold and ho喝花t processing technology. T這冷he temperature range of ho刀玩t processing is 的員900-1180 degrees腦銀. Cold processing is 電紅easy and has no special difficulties.科醫 Because the two 動的steels are easy to cool and hard輛紙en, when the c河北old deformation is too large, th笑雪e intermediate annealin請算g must be carried out to facilitate f嗎亮urther processing.
1. heat treat一銀ment process
The solution treatment temperature樹坐 of the 304 stainless s喝微teel welded pipe is 10姐海80-1100 C, and the coo工雜ling way is water cooling or air cool對分ing. The intermediate anne嗎人aling temperatur體山e of cold processing is 850-970船還 degrees cent費請igrade, and the heat 訊新is cooled for a certain time愛站. After solid solution 遠商treatment, the microstructu舊事re of the steel is austen可員ite, and sometimes a sma高舊ll amount of ferrite 熱照is found.
2 welding
The carbide preci就北pitation of 304 stainless steel wel資有ded pipe can be welded 我事by a general method. Manual electric a短中rc welding, thin section 裡哥size of carbon containing 0.04%-0坐你.06% 304 stainless steel using A去場O 002 electrode, after welding can no這火t have the tendency of intercry討我stalline corros銀話ion, for thick section 時藍size, to keep 北車the welding 我如performance of resistance to intergranu吧討lar corrosion of he區就at treatment after welding h來電eat treatmen動書t, if not, should be changed to 304L s司算tainless steel 他裡stable type steel o也紅r austenitic stainless steel.
3. cold forming pro議金perties
304 stainless steel sheet器上 is often used in cold formi都國ng operation in the process of ap長關plication. Its cold form金看ing performance is an importa這雨nt technical index to measure t什議he smooth molding a時拍nd the rate o聽暗f finished product. There are 生和many factors a家銀ffecting the cold forming of 304學劇 stainless steel, and it is also ver厭也y complicated. In 玩煙terms of its m冷地etallographical factors, it的農 is mainly the composition of s城習teel, namely 資南the ratio of ch店鐵romium equival錢要ent to nickel equivalen吃呢t, and its e街商longation rate in conventional花呢 tensile properties is an important ind好但icator. In order to obtain good cold f腦有orming properties, the ratio of chromiu行工m equivalent and nickel equ木如ivalent in steel should be報錢 controlled in a proper ra著金nge.
4. application
Food equipment, gene書高ral chemical equipment, and atom暗放ic energy industrial 技站device components are widely used. It那刀 is suitable for報會 deep drawing par說雨ts and acid pipeline, conta身學iner and so on. This kind of st明門eel is also used in the household app喝店liances of vehicle and automobile part知木s box. It is the most produc和自ed and used ste行金el in austenitic stainless steel, whic新廠h is used in the production of購跳 thin-walled p懂站arts, acid pipeline and stru舞林ctural parts. It is務校 also often used for welding Cr Ni sta有文inless steel and stainl科對ess steel core, non服我 magnetic components and components us身劇ed in low temperature enviro說海nment.
Folding stai風知nless steel welded業業 pipe plant telephone: 18118868886 m空低arking method. Number and pr金拍esentation method of 明他steel
The international chemical element她金 symbols and their symbols to國黑 represent the chemical com費技position, with Arabia 話話letters content: such 匠美as: Chinese, Russian 12CrNi說湖3A II with fixed n好物umber of digits to represent steel seri這放es or digital; suc近美h as: the Un些房ited States, Japan, 300 s喝姐eries, 400 series, 200 series; 放玩using the Latin alphabet and o影音rder the serial numb我舞er, only that the use of.
China's rules of numbering
The use of the symbol, C行現hinese Pinyin: P, 這用steel rimmed st來鐵eel: F