Qhov Sib Txawv Ntawm Cov Hlau Stainless 304 Thiab 201 Yog Dab Tsi?
Nov yog qee txoj hauv kev kom paub qhov txawv ntawm 304 thiab 201.
1. Cov lus qhia tshwj xeeb: Cov phaj hlau tsis siv hlau feem ntau tau muab faib ua ob hom, 201 thiab 304. Qhov tseeb, lawv sib txawv hauv kev sib xyaw. 304 yog qhov zoo dua, tab sis tus nqi kim dua, thiab 201 yog qhov phem dua. 304 yog cov phaj hlau tsis huv, thiab 201 yog cov phaj hlau tsis muaj tsev nyob.
2. Cov muaj pes tsawg leeg 201 yog 17Cr-4.5Ni-6Mn-N, uas yog lwm txoj hauv kev rau Ni-txuag hlau thiab 301 hlau. Tom qab ua tiav txias, nws muaj cov hlau nplaum thiab siv rau hauv tsheb ciav hlau.
3. Cov muaj pes tsawg leeg ntawm 304 yog 18Cr-9Ni, uas yog siv feem ntau siv cov hlau tsis muaj hlau thiab cov hlau tiv taus cua sov. Siv hauv cov khoom tsim khoom noj khoom haus, Xitong cov cuab yeej siv tshuaj lom neeg, lub zog nuclear, thiab lwm yam.
4. 201 muaj cov ntsiab lus manganese siab, saum npoo yog ci heev nrog tsaus thiab ci, cov ntsiab lus manganese siab yog yooj yim rau xeb. 304 muaj ntau cov chromium, saum npoo yog matte thiab tsis xeb. Ob leeg tau muab piv ua ke. Qhov tseem ceeb tshaj plaws yog qhov kev txhim kho corrosion kuj txawv. Kev txhim kho corrosion ntawm 201 tsis zoo heev, yog li tus nqi pheej yig dua. Thiab vim tias 201 muaj cov npib tsib xee tsawg, tus nqi qis dua li ntawm 304, yog li kev txhim kho corrosion tsis zoo li 304.
5. Qhov sib txawv ntawm 201 thiab 304 yog qhov teeb meem ntawm npib tsib xee. Thiab tus nqi 304 yog kim dua tam sim no, tab sis 304 tsawg kawg tuaj yeem lav tias nws yuav tsis xeb thaum siv. (Siv cov tshuaj tsis muaj steel hlau rau kev sim)
6. Cov hlau tsis yooj yim rau xeb vim tias cov chromium-nplua nuj oxide tsim nyob rau saum npoo ntawm lub cev hlau tuaj yeem tiv thaiv lub cev hlau. 201 yog high-manganese stainless hlau nrog lub zog siab dua 304, cov pa roj carbon ntau thiab qis-npib tsib xee.
7. Muaj pes tsawg leeg sib txawv (feem ntau yog qhov txawv ntawm 201 thiab 304 stainless hlau los ntawm carbon, manganese, nickel, thiab chromium)
Hlau qib Carbon (C) Silicon (Si) Manganese (Mn) Phosphorus (P) Sulfur (S) Chromium (Cr) Nickel (Ni) Molybdenum (Mo) Copper (Cu)
AISI (304) ≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.03 18-20 8-10
AISI (201) ≤0.15 ≤1.00 5.5-7.5 ≤0.05 ≤0.03 16-18 3.5-5.5.5
