http___www.qiluspecialsteel.com_ga_aisi304-sus304-en1-4948.html_1.xml
2.1 3.1 4.1 5.1 6.1 7.1 7.2 8.1 9.1 10.1 10.2 11.1 11.2 12.1 12.2 13.1 14.1 14.2 15.1 16.1 17.1 18.1 19.1 20.1 20.2 21.1 21.2 22.1 23.1 24.1 25.1 26.1 26.2 27.1 27.2 28.1 29.1 30.1 31.1 31.2 32.1 33.1 34.1 35.1 35.2 36.1 36.2 37.1 38.1 39.1 40.1 40.2 41.1 42.1 42.2 43.1 44.1 45.1 46.1 47.1 47.2 48.1 49.1 50.1 51.1 52.1 53.1 53.2 55.1 55.2 57.1 59.1 61.1 62.1 62.2 63.1 64.1 65.1 65.2 66.1 66.2 67.1 67.2 67.3 68.1 69.1 70.1 72.1 74.1 76.1 78.1 80.1 82.1 84.1 86.1
Short Description: Chemical Composition of Stainless Steel 304 Table 1. Product Detail Product Tags Chemical Composition of Stainless Steel 304 Table 1. Chemical composition for 304 stainless steel alloys Properties of Stainless Steel 304 Mechanical Properties of Stainless Steel 304 Table 2a. Mechanical properties for 304 stainless steel alloys – sheet up to 8 mm thick Table 2b. Mechanical properties for 304 stainless steel alloys – plate from 8 – 75 mm thick Table 2c. Mechanical properties for 304 stainless steel alloys – bar and section up to 160 mm diameter / thickness Physical Properties of Stainless Steel 304 Table 3. Physical properties for 304 stainless steel alloys Alloy Designations Stainless steel 304 also corresponds to the following standard designations and specifications: Corrosion Resistance of Stainless Steel 304 Stainless steel 304 has excellent corrosion resistance in a wide variety of environments and when in contact with different corrosive media. Pitting and crevice corrosion can occur in environments containing chlorides. Stress corrosion cracking can occur at temperatures over 60°C. Heat Resistance of Stainless Steel 304 Stainless steel 304 has good resistance to oxidation in intermittent service up to 870°C and in continuous service to 925°C. However, continuous use at 425-860°C is not recommended if corrosion resistance in water is required. In this instance 304L is recommended due to its resistance to carbide precipitation. Where high strength is required at temperatures above 500°C and up to 800°C, grade 304H is recommended. This material will retain aqueous corrosion resistance. Fabrication of Stainless Steel 304 Fabrication of all stainless steels should be done only with tools dedicated to stainless steel materials. Tooling and work surfaces must be thoroughly cleaned before use. These precautions are necessary to avoid cross contamination of stainless steel by easily corroded metals that may discolour the surface of the fabricated product. Cold Working of Stainless Steel 304 Stainless steel 304 readily work hardens. Fabrication methods involving cold working may require an intermediate annealing stage to alleviate work hardening and avoid tearing or cracking. At the completion of fabrication a full annealing operation should be employed to reduce internal stresses and optimise corrosion resistance. Hot Working of Stainless Steel 304 Fabrication methods, like forging, that involve hot working should occur after uniform heating to 1149-1260°C. The fabricated components should then be rapidly cooled to ensure maximum corrosion resistance. Heat Treatment of Stainless Steel 304 Stainless steel 304 cannot be hardened by heat treatment. Solution treatment or annealing can be done by rapid cooling after heating to 1010-1120°C. Machinability Stainless steel 304 has good machinability. Machining can be enhanced by using the following rules: Cutting edges must be kept sharp. Dull edges cause excess work hardening. Cuts should be light but deep enough to prevent work hardening by riding on the surface of the material. Chip breakers should be employed to assist in ensuring swarf remains clear of the work Low thermal conductivity of austenitic alloys results in heat concentrating at the cutting edges. This means coolants and lubricants are necessary and must be used in large quantities. Welding of Stainless Steel 304 Fusion welding performance for Stainless steel 304 is excellent both with and without fillers. Recommended filler rods and electrodes for stainless steel 304 is grade 308 stainless steel. For 304L the recommended filler is 308L. Heavy welded sections may require post-weld annealing. This step is not required for 304L. Grade 321 may be used if post-weld heat treatment is not possible. Applications of Stainless Steel 304 Stainless steel 304 is typically used in: Sinks and splashbacks Saucepans Cutlery and flatware Architectural panelling Sanitaryware and troughs Tubing Brewery, dairy, food and pharmaceutical production equipment Springs, nuts, bolts and screws
2.1 3.1 4.1 5.1 6.1 7.1 7.2 8.1 9.1 10.1 10.2 11.1 11.2 12.1 12.2 13.1 14.1 14.2 15.1 16.1 17.1 18.1 19.1 20.1 20.2 21.1 21.2 22.1 23.1 24.1 25.1 26.1 27.1 27.2 28.1 29.1 30.1 31.1 31.2 32.1 33.1 34.1 35.1 35.2 36.1 36.2 37.1 38.1 39.1 40.1 40.2 41.1 42.1 42.2 43.1 44.1 45.1 46.1 47.1 47.2 48.1 49.1 50.1 51.1 52.1 53.1 53.2 55.1 57.1 59.1 61.1 62.1 62.2 63.1 64.1 65.1 65.2 66.1 66.2 67.1 67.2 67.3 68.1 69.1 70.1 72.1 74.1 76.1 78.1 80.1 82.1 84.1 86.1
Cur síos achomair: Chemical Composition of Stainless Steel 304 Table 1. Sonraigh Táirge Táirge Clibeanna Comhdhéanamh Cheimiceach de Cruach dhosmálta 304 Tábla 1. Comhdhéanamh ceimiceach ar feadh 304 cóimhiotail cruach dhosmálta Airíonna Cruach dhosmálta 304 Airíonna meicniúla ar Cruach dhosmálta 304 Tábla 2a. Airíonna meicniúla ar feadh 304 cóimhiotail déanta as cruach dhosmálta - bileog suas go dtí 8 mm tiubh Tábla 2b. Airíonna meicniúla ar feadh 304 cruach dhosmálta alloys – plate from 8 – 75 mm thick Tábla 2c. Airíonna meicniúla ar feadh 304 cruach dhosmálta alloys – bar and section up to 160 mm diameter / thickness Airíonna fisiceacha de Cruach dhosmálta 304 Tábla 3. Airíonna fisiceacha ar feadh 304 cóimhiotail cruach dhosmálta Alloy Ainmniúcháin Déanta as cruach dhosmálta 304 Freagraíonn freisin leis na sannacháin agus sonraíochtaí caighdeánacha a leanas: Creimeadh Friotaíocht Cruach dhosmálta 304 Déanta as cruach dhosmálta 304 Tá friotaíocht creimeadh den scoth i raon leathan timpeallachtaí agus nuair i dteagmháil leis na meáin creimneach éagsúla. Pitting agus crevice féidir creimeadh tarlú i dtimpeallachtaí ina bhfuil clóirídí. Strus Is féidir le creimeadh scáineadh tarlú ag teochtaí níos mó ná 60 ° C. Teas Friotaíocht Cruach dhosmálta 304 Tá cruach dhosmálta 304 friotaíocht maith le ocsaídiúcháin i seirbhís breac suas go dtí 870 ° C agus i sheirbhís leanúnach le 925 ° C. , Tá úsáid leanúnach ag 425-860 ° C, áfach nach bhfuil molta má tá friotaíocht creimeadh in uisce atá ag teastáil. Sa chás go bhfuil 304L molta mar gheall ar a friotaíocht a chomhdhúile deascadh. Sa chás go neart ard ag teastáil ag teocht os cionn 500 ° C agus suas go dtí 800 ° C, tá grád 304H molta. Beidh an t-ábhar a choinneáil uiscí friotaíocht creimeadh. Déantúsaíocht de Cruach dhosmálta 304 Ba chóir Déantúsaíocht de gach steels dhosmálta a dhéanamh ach amháin le huirlisí atá tiomanta le hábhair cruach dhosmálta. Tooling mór agus obair dromchlaí a ghlanadh go maith roimh úsáid. Tá na réamhchúraimí is gá a sheachaint traséilliú as cruach dhosmálta ag miotail go héasca corroded fhéadfadh discolour an dromchla an táirge fabricated. Ag obair Fuar Cruach dhosmálta 304 Déanta as cruach dhosmálta 304 héasca ag obair hardens. Féadfar modhanna monaraithe a bhaineann le obair fuar cheangal ar céim annealing idirmheánach a mhaolú hardening oibre agus a sheachaint tearing nó le scoilteadh. Ar chríochnú monaraithe a annealing iomlán Ba chóir oibriú a úsáid chun laghdú inmheánach béim agus a bharrfheabhsú friotaíocht creimeadh. Ag obair te de Cruach dhosmálta 304 Ba cheart modhanna Déantúsaíocht, mar chruthú, a mbíonn baint ag te ag obair tharlaíonn tar éis téamh aonfhoirmeach go 1149-1260 ° C. Na comhpháirteanna fabricated Ba cheart cooled go tapa ansin chun a chinntiú go friotaíocht creimeadh uasta. Teas Déileáil Cruach dhosmálta 304 Ní féidir le cruach dhosmálta 304 a cruaite ag cóireála teasa. Is féidir le cóireáil Réiteach nó annealing a dhéanamh trí fuaraithe tapa tar éis téamh le 1010-1120 ° C. machinability Tá Cruach dhosmálta 304 machinability maith. Is féidir le meaisínithe a fheabhsú trí úsáid a bhaint as na rialacha seo a leanas: Ní mór imill Gearradh a choinneáil géar. imill Dull chur faoi deara hardening oibre breise. Ba chóir go mbeadh laghduithe a solas ach domhain go leor chun cosc a chur hardening oibre trí marcaíocht ar an dromchla an ábhair. Ba cheart Scoradáin sliseanna a úsáid chun cabhrú lena chinntiú swarf fós soiléir ar an obair Seoltacht theirmeach íseal na dtorthaí cóimhiotail austenitic sa teas ag díriú ar na himill a ghearradh. Ciallaíonn sé seo coolants agus bealaidh atá riachtanach agus ní mór é a úsáid i gcainníochtaí móra. Táthú Cruach dhosmálta 304 Tá feidhmíocht táthú Comhleá as cruach dhosmálta 304 den scoth araon le agus gan fillers. Slata filler molta agus leictreoidí le cruach dhosmálta 304 Tá ghrád 308 cruach dhosmálta. Do 304L Is é an filler molta 308L. Is féidir codanna táthaithe Trom cheangal ar an bpost-weld annealing. Ní hé seo an chéad chéim ag teastáil le haghaidh 304L. Grád Féadfar 321 a úsáid mura bhfuil a chóireáil teasa iar-weld is féidir. Iarratais na Cruach dhosmálta 304 Tá cruach dhosmálta 304 a úsáidtear go tipiciúil i: Doirtil agus splashbacks sáspain Sceanra agus flatware painéil Ailtireachta Sanitaryware agus umair tubing Brewery, déiríochta, bia agus cógaisíochta trealamh táirgeachta Springs, cnónna, boltaí agus iarainn