Stɛnlɛs stiɛl de ɔlsay, frɔm kichin tin dɛn to skayskrɛpa dɛn. 304 ɛn 316 na tu pan di mɔs pɔpul stenlɛs stiɛl dɛn, ɛn ɛni wan pan dɛn gɛt spɛshal prɔpati fɔ difrɛn envayrɔmɛnt dɛn. Insay dis post, wi go ɛksplɔrɔ dɛn men difrɛns, kɔba kɔmpɔzishɔn, pefɔmɛns, ɛn ideal aplikeshɔn dɛn. Diskɔba wetin mek yu pik di rayt gred impak dɛn kɔst, durabiliti, ɛn resistans.
Wetin na stenlɛs stiɛl?
Stenless Steel na wan alɔy we nɔ de kɔrɛshɔn we gɛt di minimum 10.5% kromiɔm. Dis kromiɔm kɔntinyu de alaw fɔ mek wan pasiv layt, we dɛn kɔl di kromiɔm ɔksayd layt, we de protɛkt di stɛl frɔm rɔst ɛn kɔrɛshɔn. Stenlɛs stiɛl dɛn sheb to fayv famili dɛn bay we dɛn yuz dɛn kristal strɔkchɔ ɛn alɔy ɛlimɛnt dɛn:
Austenititic : Di famili we pipul dɛn lɛk pas ɔl, we inklud gred 304 ɛn 316. Nɔn-magnɛtik ɛn nɔ at bay we dɛn de trit ɔt, Ɔstenitik stenlɛs stiɛl dɛn de gi ay levul fɔ kromiɔm ɛn nikel fɔ fayn fayn kɔrɛshɔn rɛsistɛns.
Fɛrik : Dɛn sabi am fɔ mɔdaret kɔrɛshɔn rɛsistɛns, gud fɔmabiliti, ɛn lɔw kɔst, we dɛn kin yuz fɔ ɔtomotiv aplikeshɔn dɛn.
Martensitic : de gi ay trɛnk ɛn had, bɔku tɛm dɛn kin yuz am na kɔtlɛri ɛn ɔspitul tul dɛn.
Duplex : Na blend fɔ ɔstɛns ɛn fɛritik strɔkchɔ, dupleks stɛl dɛn de balans trɛnk ɛn kɔrɛshɔn rɛsistɛns fɔ yuz na marin ɛnvayrɔmɛnt.
Prɛsipitashɔn-hardening : ay-strɛng stenlɛs stiɛl, we dɛn kin yuz bɔku tɛm na ɛrospɛs, bikɔs ɔf in ɔt-tritabl nature.
| Famili | kwaliti dɛn | Kɔmɔn gred dɛn |
| Ɔstenitik . | Nɔn-magnɛtik, fayn fayn kɔrɛshɔn rɛsistɛns, gud fɔmabiliti | 304, 316. |
| Fɛritik . | Magnɛtik, gud kɔrɛshɔn rɛsistɛns, limited fɔmabiliti | 430, 439. |
| Martensitic . | Magnɛtik, ay trɛnk, mɔdaret kɔrɛshɔn rɛsistɛns | 410, 420 |
| Dupleks na di . | Magnɛtik, ay trɛnk, fayn fayn kɔrɛshɔn rɛsistɛns | 2205, 2507. |
| Prɛsipitashɔn we de at fɔ mek yu at kol . | Magnɛtik, ay trɛnk, gud kɔrɛshɔn rɛsistɛns | 17-4 pH, 15-5 pH . |
Na dɛn famili ya, Ɔstenitik stenlɛs stiɛl na di wan we dɛn kin yuz pas ɔl, we kin mek lɛk 70% pan di ɔl stenlɛs stiɛl prodakshɔn. Dɛn sabi dɛn fɔ dɛn fayn fayn kɔrɛshɔn rɛsistɛns, gud fɔmabiliti, ɛn wɛldabiliti. Di tu austenitik gred dɛm we dɛn kin yuz mɔ na 304 ɛn 316, we wi go tɔk bɔt ditayli na di sɛkshɔn dɛm we de kam.
Wetin na 304 stenlɛs stiɛl?
304 stenlɛs stiɛl na ɔstenitik gred we gɛt 18-20% kromiɔm, 8-10.5% nikel, ɛn maksimɔm 0.08% kabɔn. Dis kemikal kompozishun de gi am fayn fayn koroshɔn resistans, we de mek i fayn fɔ difrɛn aplikeshɔn dɛn.
Ki prɔpati dɛn fɔ 304 stenlɛs stiɛl .
Excellent Corrosion Resistance : Di ay kromium we de insay de alaw fɔ mek wan protɛktiv ɔksayd layt, we de mek i nɔ rɔst ɛn kɔrɛshɔn na bɔku pan di envayrɔmɛnt dɛn.
Gud fɔmabiliti ɛn wɛldability : 304 stenlɛs stiɛl kin izi fɔ shep ɛn wɛl, we kin mek i versatil fɔ manufakchurin prɔses.
High Durability : Dɛn sabi am fɔ in trɛnk ɛn di ebul fɔ bia wit ɛvride wear ɛn tear, fɔ mek shɔ se i de wok fɔ lɔng tɛm.
Kɔmɔn aplikeshɔn dɛn fɔ 304 stenlɛs stiɛl .
304 Stainless Steel in durability, izi fɔ klin, ɛn resistans to koroshɔn mek am pɔpul na industri lɛk it, akitekchɔ, ɛn os prodak. Di kɔmɔn tin dɛn we dɛn kin yuz na:
Kichin Ikwipmɛnt : Dɛn kin yuz am fɔ sink, kɔtlɛri, ɛn aplayans bikɔs i nɔ de rɔtin ɛn ebul fɔ bia we dɛn de klin am ɔltɛm.
Fɔd Prɔsesin Ikwipmɛnt : I fayn fɔ yuz fɔ it-grɛd, lɛk tank, kɔntena, ɛn mashin, usay klin ɛn rɔst nɔ impɔtant.
Architectural Trim and Molding : Bɔku tɛm dɛn kin si am na dɛkɔretiv aplikeshɔn dɛn, i kin gi wan atraktiv finish we i de agens tarnish.
Wetin na 316 stenlɛs stiɛl?
. di ad we dεn ad Molybdenum de εnhans in kכroshכn rεsistεns, patikyular insay klorayd εn asid envayroment, we de mek i fayn fכ harsh kondishכn.
Ki prɔpati dɛn .
Superior Corrosion Resistance : Di molibden we de insay de mek 316 stenlɛs stiɛl ebul fɔ bia wit pit ɛn kres kɔrɛshɔn we klorayd ɛn asid dɛn kin mek.
Eksɛlɛnt trɛnk na ay tɛmpracha : I de mentɛn in mɛkanikal prɔpati dɛn ivin na ɛlevɛt tɛmpracha, we de mek i fayn fɔ ay-ɔt aplikeshɔn dɛn.
Great durability in harsh kondishɔn : 316 stenlɛs stiɛl kin tinap fɔ agresiv ɛnvayrɔmɛnt, mek shɔ se dɛn de du lɔng-last pefɔmɛns insay diman aplikeshɔn dɛn.
Kɔmɔn aplikeshɔn dɛn fɔ 316 stenlɛs stiɛl .
316 in kɔrɛshɔn rɛsistɛns ɛn robustnɛs suit am fɔ diman industri dɛm, mɔ usay fɔ ɛkspos to kɔrosiv sɔbstans na rutin.
Kεmikכl prכsεsin ikwipmεnt : Dɛn kin yuz am na prodakshɔn tank, paip layn, ɛn valv fɔ hεndl riaktiv kεmikכl dεm sef wan.
Famasiutik Ikwipmɛnt : I fayn fɔ di mɛdikal ɛnvayrɔmɛnt, usay klin ɛn nɔ gri fɔ klin di kemikal dɛn rili impɔtant.
Marin ɛn Ɔfsho Envayrɔmɛnt : kɔmɔn na bot fitin, si wata paip, ɛn ɔfsho strɔkchɔ bikɔs ɔf in resiliɛns agens sɔl wata kɔrɛshɔn.
Di fizik prɔpati dɛn fɔ 304 ɛn 316 stenlɛs stiɛl kɔmpia .
We yu kɔmpia 304 ɛn 316 stenlɛs stiɛl, i impɔtant fɔ ɔndastand dɛn fizik prɔpati dɛn. Pan ɔl we ɔl tu di gred dɛn gɛt bɔku tin dɛn we fiba, sɔm impɔtant difrɛns dɛn de.
Tik
Tu 304 ɛn 316 stenlɛs stiɛl gɛt di sem kayn dens, arawnd 8.0 g/cm³. Di addɛshɔn fɔ molibdɛnam insay 316 nɔ rili afɛkt in density.
Point we de mɛlt .
304 stenlɛs stiɛl gɛt smɔl ay mɛlt pɔynt pas 316. 304 mɛlt na lɛk 1400-1450°C, we 316 mɛlt na arawnd 1375-1400°C.
Tɛmral ɛkspɛnshɔn ɛn kɔnduktiviti .
. כltu, dεn tεmral kכnduktiviti dεm de nia di sem, wit 304 na 16.2 w/m·k εn 316 na 16.3 w/m·k.
Modulus fɔ ɛlastikiti .
di tu gred dεm gεt di sem mכdulus fכ elastisiti na 193 GPA, we de sho se di sem kayn stiffnεs de.
Tebul fɔ Fizik Prɔpati dɛn
| Prɔpati | 304 stenlɛs stiɛl | 316 stenlɛs stiɛl |
| Tik | 8.00 g/cm³ | 8.00 g/cm³ |
| Point we de mɛlt . | 1400-1450 ° C . | 1375-1400 ° C . |
| Tɛmral ɛkspɛnshɔn . | 17,2 x 10⁻⁶/K | 15,9 x 10⁻⁶/K |
| Di kɔnduktiviti fɔ di tɛmral . | 16.2 W/M·K | 16.3 W/M·K |
| Modulus fɔ ɛlastikiti . | 193 GPA . | 193 GPA . |
Wetin na di difrɛns pan mɛkanikal prɔpati bitwin 304 ɛn 316 stenlɛs stiɛl?
Trɛnk
Tεnsil Strɔng : 304 Stɛnlɛs Stiɛl Tipikli gɛt tɛnsiɛl strɛngth we na 500-700 MPa, we 316 de gi smɔl lɔwa tɛnsiɛl trɛnk na 400-620 MPa. Bɔt ɔl tu di matirial dɛn de mentɛn ay trɛnk ɔnda bɔku kɔndishɔn dɛn.
Yield Strength : 316 stenlɛs stiɛl de gi wan yield strɛngth we de arawnd 348 MPa, we pas 304 in yield strɛngth we na 312 MPa. Dis difrɛns de mek 316 bɛtɛ fit fɔ aplikeshɔn dɛn we nid ay rɛsistɛns to difɔmeshɔn ɔnda lod.
Hadnɛs .
Ductility .
elongation at break : 304 de sho fayn fayn elongeshɔn na brek, tipikli arawnd 70%, we de mek i rili daktayl. .
Kol Fɔmabiliti : Ɔl tu di gred dɛn de du fayn fayn wan pan kol-fɔm aplikeshɔn dɛn, bɔt 304 in ay daktiliti de mek i ebul fɔ adap fɔ intrikɛt fɔm dɛn.
Tebul fɔ Mɛkanikal Prɔpati dɛn
| Prɔpati | 304 stenlɛs stiɛl | 316 stenlɛs stiɛl |
| Tensil Strɔng (MPA) . | 500-700 na di | 400-620 na di |
| yield strɛngth (MPA) . | 312 | 348 |
| Rɔkwel hadnɛs (B) . | 70 | 80 |
| Elongeshɔn na brek (%) . | 70 | 60 |
Di difrɛns dɛn we de pan kɔrɛshɔn rɛsistɛns bitwin 304 ɛn 316 stenlɛs stiɛl .
Jɛnɛral kɔrɛshɔn rɛsistɛns .
Stenlɛs stiɛl de agens kɔrɛshɔn fɔs bikɔs ɔf in kromiɔm kɔntinyu, we de fɔm wan protɛktiv ɔksayd layt na di sɔfa. Tu 304 ɛn 316 stenlɛs stiɛl dɛn kin ɛksɛl na bɔku envayrɔmɛnt dɛn, bɔt 316 de gi big kɔrɛshɔn rɛsistɛns bikɔs ɔf in ad molibdɛnam, we de fɛt rɔst ɛn tarnish ivin insay harsh kɔndishɔn.
Pitting ɛn Krevis Kɔroshɔn .
Wan impɔtant advantej fɔ 316 stenlɛs stiɛl na in rɛsistɛns to pit ɛn kres kɔrɛshɔn, patikyula insay klorayd-rich ɛnvayrɔmɛnt. Di 2-3% molybden in 316 de mek wan robust baria agens lokaliz koroshon, we mek am fayn fɔ setin usay sɔl ɔ asid sɔbstans dɛn de bɔku. Difrɛn frɔm dat, 304, pan ɔl we kɔrɛshɔn-rɛsistɛns, i kin mɔna fɔ pit na agresiv ɛnvayrɔmɛnt.
Aplikeshɔn dɛn na Agresiv Envayrɔmɛnt dɛn .
316 stenlɛs stiɛl pas 304 insay marin ɛn asid sɛtin. Di we aw i de ɛp fɔ mek i nɔ gɛt sɔl wata kɔrɛshɔn de mek i pɔpul fɔ di tin dɛn we dɛn de yuz na di si, we di we aw i go de fɔ lɔng tɛm agens asid kɔmpawnd dɛn de sɔpɔt di we aw dɛn de yuz am na di kemikal ɛn famasitik industri dɛn. Pan ɔl we 304 de du fayn fayn wan na bɔku pan di say dɛn we nɔ gɛt sɔl, we nɔ de na di kɔntri, 316 stil na di say we dɛn kin pik fɔ du bad bad tin dɛn.
Kompareshon tebul of koroshon resistans factors
| factor | 304 stenles stiel | 316 stenles stiel |
| Di tin dɛn we de insay di kromiɔm . | 18-20% | 16-18.5% |
| Nikel kɔntinyu fɔ de . | 8-10.5% | 10-14% |
| Molybdenum Kɔntinɛnt . | - | 2-3% |
| Pitting resistans ikwal nɔmba (pren) . | 18-20. | 24-28. |
| I fayn fɔ di say dɛn we de na di si . | Soba | Wɛl dɔn |
| Resistance to asid kondishɔn dɛn . | Gud | Wɛl dɔn |
304 ɛn 316 stenlɛs stiɛl difrɛn pan tin dɛn we gɛt fɔ du wit di we aw dɛn mek am .
Weldability na di .
304 stenlɛs stiɛl na fayn fayn wan fɔ wɛldin, fɔ adap fayn to difrɛn wɛldin prɔses dɛn we nɔ go lɔs kɔrɛshɔn rɛsistɛns. Pan ɔl we 316 weld dɛn fayn fayn wan bak, i nid mɔ kia fɔ mek dɛn kɔntinyu fɔ gɛt in prɔpati dɛn we nɔ de rɔtin na say dɛn we dɛn dɔn wɛl. Fɔ diman weld dɛn na kɔrosiv ɛnvayrɔmɛnt, yuz wan filɛ mɛtal wit ad molibdɛnam de mek shɔ se dɛn gɛt bɛtɛ rizɔlt wit 316.
Kol wok hardening .
304 ɛn 316 gred dɛn ɔl tu kin at we dɛn wok na kol stet, we kin mek dɛn gɛt mɔ trɛnk. Kol wok de alaw dɛn stɛl ya fɔ gɛt taf ɛn trɛnk bɔt i kin mek dɛn nid fɔ gɛt post-wok anil fɔ pul di strɛs dɛn we de insay.
Fɔmabiliti .
304 stenlɛs stiɛl na rili fɔmabl, i izi fɔ shep insay difrɛn fɔm dɛn we nɔ gɛt kɔmprɔmis trɛnk. Dis mek am fayn fɔ aplikeshɔn dɛn we nid fɔ gɛt bɔku shep. 316 ofa gud fomabiliti bak, pan ɔl we i smɔl smɔl fɔ adap pas 304 bikɔs ɔf in molibdɛnam kɔntinyu, we kin impɔk fleksibiliti.
Machinabiliti fɔ di wan dɛn we de wok .
In di anil stet, ɔl tu di gred dɛn rili izi fɔ mashin, pan ɔl we 304 na marginally mɔ mashinabl bikɔs ɔf in lɔwa hadnɛs. Dis mek 304 prɛfɛrabl fɔ intrikɛt pat dɛn we nid bɔku mashin, we 316 na mɔ fit usay ay kɔrɛshɔn rɛsistɛns na prayoritɛd.
| Fabrication factor | 304 stenless steel | 316 stenless stiel . |
| Weldability na di . | Wɛl dɔn | Gud |
| Kol wok hardening . | Yɛs | Yɛs |
| Fɔmabiliti . | Rili gud | Gud |
| Machinabiliti fɔ di wan dɛn we de wok . | I bɛtɛ smɔl bɛtɛ . | Gud |
Di kɔst kɔmpiashɔn bitwin 304 ɛn 316 stenlɛs stiɛl?
304 stenlɛs stiɛl, we dɛn kin kɔl bɔku tɛm di 'standard' gred, dɛn kin yuz am bɔku bɔku wan fɔ jenɛral aplikeshɔn dɛn. I lɔwa kɔst de mek am badjɛt-frenli opshɔn fɔ prɔjek dɛn usay ekstrim kɔrɛshɔn rɛsistɛns nɔ impɔtant. Di absɛns ɔf Molybdenum, we dɛn fɛn insay 316, de kip 304 in prays mɔ afɔdabul.
316 stenlɛs stiɛl gɛt ay ay amɔnt dɛn fɔ nikel ɛn i gɛt 2-3% molibdɛnam, we de rili ɛp fɔ mek i nɔ ebul fɔ fɛt klorayd ɛn harsh kemikal dɛn. Dɛn ɔda tin ya kin mek 316 dia pas 304, sɔm tɛm dɛn kin rich 40%. Di invɛstmɛnt na 316 kin bi mɔ kɔst-ɛfɛktiv na say dɛn we gɛt bɔku tin dɛn fɔ du, we go mek di prɔdak layfspan ɛn ridyus di mentenɛns nid dɛn.
Aw fɔ pik bitwin 304 ɛn 316 stenlɛs stiɛl?
Fɔ pik di rayt stenlɛs stiɛl gred na impɔtant tin fɔ mek shɔ se dɛn du di bɛst wok ɛn di kɔst-ɛfɛktiv. We yu de disayd bitwin 304 ɛn 316, tink bɔt dɛn tin ya:
Di tin dɛn we de apin na di envayrɔmɛnt .
304 stenlɛs stiɛl : I fayn fɔ jenɛral-pɔpɔs aplikeshɔn wit mɔdaret ɛksplɔshɔn to kɔrosiv ɛnvayrɔmɛnt. I de du fayn fayn wan na di atmosfɛrik kɔndishɔn, di we aw dɛn de prosɛs di it, ɛn di say dɛn we nɔ gɛt bɔku asid.
316 STAINLESS STEEL : I fayn fɔ mek dɛn gɛt harsh ɛnvayrɔmɛnt wit ay ɛksplɔshɔn to klorayd, lɛk marin ɔ kɔstal aplikeshɔn. I de gi bak supia resistans to pitting ɛn crevice koroshɔn na asid ɛnvayrɔmɛnt.
Di tin dɛn we dɛn fɔ tink bɔt fɔ di badjɔt .
304 stenlɛs stiɛl : We kɔst na di men tin we de mɔna am ɛn di aplikeshɔn nɔ nid di supia kɔrɛshɔn rɛsistɛns fɔ 316, 304 kin bi mɔ ikɔnomik chuk.
316 STAINLESS STEEL : Pan ɔl we fɔs i dia, 316 kin gi lɔng tɛm kɔst sevings na aplikeshɔn usay in supia kɔrɛshɔn rɛsistɛns de ɛkstɛnd di savis layf fɔ di kɔmpɔnɛnt.
Di tin dɛn we dɛn nid fɔ du .
Mechanical Strength : Ɔl tu di gred dɛn de gi fayn fayn mɛkanikal prɔpati dɛn, bɔt 316 gɛt smɔl ay tɛnsiɛl ɛn yield trɛnk.
Heat Resistance : 304 ɛn 316 gɛt di sem kayn ɔt rɛsistɛns, wit 304 we gɛt smɔl ay maksimal savis tɛmpracha.
Corrosion Resistance : 316 de gi supia koroshɔn resistans, patikyula agens klorayd ɛn asid, bikɔs ɔf in molibdɛnam kɔntinyu.
Tebul fɔ Disishɔn-mɛkin
| Fakta | 304 stenlɛs stiɛl | 316 stenlɛs stiɛl |
| Di tin dɛn we de apin na di envayrɔmɛnt . | Modaret koroshɔn . | Harsh Envayrɔmɛnt dɛn . |
| Di tin dɛn we dɛn fɔ tink bɔt fɔ di badjɔt . | Di wan dɛn we nɔ de pe bɔku mɔni fɔ di wok . | Fɔ lɔng tɛm sevings . |
| Mekanikal Strɔng . | Wɛl dɔn | I ay smɔl fɔ mek i ay smɔl . |
| Di wan dɛn we de fɛt fɔ mek di ples wam . | Smɔl ay maks temp . | Fiba |
| Koroshɔn rɛsistɛns . | Gud | Big pas |
Ɛksplen
Fɔ ɔndastand di difrɛns bitwin 304 ɛn 316 stenlɛs stiɛl rili impɔtant fɔ mek yu pik di rayt tin. Wail 304 ofa kos sevings en jenerol durability, 316 giv supia koroshon resistans bikos of in molibden konten. Fɔ pik di kɔrɛkt gred de dipen pan tin dɛn lɛk di envayrɔmɛnt, fɔ gɛt tin dɛn we kɔrɛkt, fɔ gɛt trɛnk we dɛn nid, ɛn fɔ gɛt badjɛt.
Pik 304 fɔ ɛvride, nɔ-kɔrosiv aplikeshɔn usay kɔst na di men tin we de mɔna yu. Fɔ di marin, kemikal, ɔ klorayd-hɛvi sɛtin, 316 de gi lɔng tɛm pefɔmɛns. We yu tink bɔt dɛn tin ya, i de ɛp fɔ mek shɔ se di stenlɛs stiɛl mit di prɔjek nid dɛn fayn fayn wan.
Rifrɛns Sɔs dɛn .
SAE 316L stenles stiel .
SAE 304 stenlɛs stiɛl .
Stenlɛs stiɛl .
CNC MACHINING FƆ STAINLESS STEEL .
Kwɛshɔn dɛn we dɛn kin aks ɔltɛm (FAQ)
K: Wetin na di men difrɛns bitwin 304 ɛn 316 stenlɛs stiɛl?
di ki difrεns na dat 316 gεt 2-2.5% molibden we 304 nכ de. 316 gɛt bak smɔl mɔ nikel (10-13%) pas 304 (8-10.5%), we mek i nɔ kɔrɛkt mɔ.
K: Wetin mek 316 stenlɛs stiɛl kɔst pas 304?
316 stenlɛs stiɛl de kɔst lɛk 40% mɔ bikɔs i gɛt ɔda molibdɛnam ɛn ay nikel kɔntinyu, we na dia alɔy ɛlimɛnt dɛn.
K: Aw a go pik bitwin 304 ɛn 316 fɔ mi prɔjek?
Pik 304 fɔ jenɛral pɔpɔshɔn ɛn indo aplikeshɔn. Selekt 316 If yu projɛkt involv marin ɛnvayrɔmɛnt, kemikal ɛksplɔshɔn, ɔ nid fɔ gɛt ay kɔrɛshɔn rɛsistɛns.
K: Wetin na di tipik tɛmpracha limit fɔ 304 vs. 316 stenlɛs stiɛl?
304 de du wɛl te to 870°C (1500°F) bɔt i kin kɔrɛd bitwin 425-860°C (797-1580°F). 316 de wok fayn bitwin 454°C (850°F) ɛn 843°C (1550°F).
K: Us aplikeshɔn dɛn kin yuz mɔ fɔ yuz ɛni kayn stenlɛs stiɛl?
304 na di kɔmɔn tin we dɛn kin yuz na di kichin ikwipmɛnt, aplayans, ɛn mɛrɛsin tul dɛn, ɛn dɛn kin lɛk 316 fɔ di marin ikwipmɛnt, fɔ mek mɛrɛsin, ɛn fɔ mek dɛn kip di kemikal dɛn we dɛn kin yuz fɔ kip tin dɛn.
