SS 304 304L Phaj
SS 304 yog cov hlau tsis muaj steel nrog cov ntawv thov xws li kev tsim cov khoom siv tshuaj, chav ua noj thiab cov khoom siv ua noj, mus rau cov cuab yeej phais thiab cov khoom siv dyeing. Cov hlau yog tus cwj pwm los ntawm nws cov corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv oxidation thiab ntsev dej....
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SIB 304yog cov hlau tsis muaj steel nrog cov ntawv thov xws li kev tsim cov khoom siv tshuaj, chav ua noj thiab cov khoom siv ua noj, mus rau cov cuab yeej phais thiab cov khoom siv dyeing. Cov hlau yog tus cwj pwm los ntawm nws cov corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv cov ntaub ntawv ntawm oxidation thiab ntsev dej. Txwv tsis pub hu ua Qib 304 lossis Hom 304, nws yog qib feem ntau siv stainless hlau, ua ntau yam hauv daim ntawv thov, daim ntawv, thiab ua tiav.
SS 304 yog suav tias yog cov hlau tsis muaj steel hlau, muaj li ntawm 18% chromium thiab 8% npib tsib xee. Cov khoom no kuj tseem ua rau 304 raug xa mus rau "18/8". Cov seem ntawm nws muaj pes tsawg leeg yog tsim los ntawm carbon, manganese, silicon thiab tsawg heev ntawm phosphorous thiab sulfur. Cov pleev no ua kom ntseeg tau tias SS 304 muaj qhov sib npaug ntawm kev ua tau zoo nyob rau hauv cov nqe lus ntawm weldability, corrosion resistance thiab anti-oxidation zog.
Tsis tas li ntawd, cov hlau yog pliable nyob rau hauv ob qho tib si kub thiab txias ua hauj lwm, tab sis nws teb zoo dua rau txias ua hauj lwm; nws tsuas yog ua haujlwm nyuaj hauv kev ua haujlwm txias. Kev nthuav dav rau qhov kub thiab txias ntawm 800-1500 degree F tuaj yeem ua rau embrittlement thiab yuav tsum tau ua tib zoo saib xyuas.
SWB 304Lyog qhov tsawg-carbon derivative ntawm Hom 304, thiab txawm hais tias ob hom sib koom ntau yam zoo ib yam, nws yog qhov sib txawv ntawm cov ntsiab lus carbon uas txawv lawv. SS 304L yog siv rau cov ntawv thov uas yuav tsum tau muaj cov pa roj carbon tsawg, xws li hauv cov khoom ntsuas hnyav. Nws qhov sib txawv muaj pes tsawg leeg los ntawm Hom 304 kuj tseem tshem tawm qhov xav tau rau kev siv tom qab vuam annealing kom ua tau zoo tshaj plaws corrosion kuj. Tsis tas li ntawd, nws kuj muaj qhov ua haujlwm hnyav dua.
304L nthuav tawm kev ua haujlwm zoo hauv ntau qhov chaw thiab qhov kub thiab txias, nrog rau kev xeb thiab oxidation uas tshwm sim dhau sijhawm. Nws feem ntau siv rau thaj tsam ntawm qhov kub siab dua li Hom 304 tuaj yeem tiv taus, thiab nws cov pa roj carbon tsawg tso cai rau nws tiv taus cov nag lossis daus. Txawm li cas los xij, zoo li ntau cov hlau tsis muaj steel, nws muaj peev xwm ua rau sov chlorine ib puag ncig thiab tuaj yeem ua rau lub qhov dej thiab tawg.
Stainless Steels 304 thiab 304L tuaj yeem pom pom muaj ntawv pov thawj dua. Qhov no siv cov khoom siv dav dav ntawm ob qho tib si hlau thiab ua tau raws li tus kheej cov lus qhia rau txhua tus.
| STANDARD | SIB 304 | SWB 304L | SIB 304H |
|---|---|---|---|
| UNS | S30400 | S30403 | S30409 |
| WERKSTOFF NR. | 1.4301 | 1.4306 | 1.4948 |
Lub cev muaj zog - SS 304 / SS 304L
| DENSITY | 8. 0 g/cm3/ 0.289 lb/in3 |
| LUB TSEV | 1400 - 1455 (degree) / 2550 - 2650 (degree F) |
| POISSON'S RATIO | 0.29 |
| NYIAJ | 1040 (degree) / 1900 (degree F) |
| QUENCH | Huab cua / dej nrawm |
Chemical Composition - 304L / 304 Stainless hlau
| TSEEM CEEB | 304 | 304L | 304H |
|---|---|---|---|
| NI | 8.0 – 11.0 | 8.0 – 12.0 | 8.0 – 11.0 |
| C | 0.08 max | 0.035 max | 0.04 – 0.10 |
| MN | 2 0 max | 2 0 max | 2 0 max |
| P | 0.045 max | 0.045 max | 0.045 max |
| S | 0.030 max | 0.030 max | 0.030 max |
| SI | 1 0 max | 1 0 max | 1 0 max |
| CR | 18.0 – 20.0 | 18.0 – 20.0 | 18.0 – 20.0 |
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