🔍 1. Cov ntsiab lus tseem ceeb
| Teem nqi | Kev piav txog |
|---|---|
| 304 | Txheem Austenitic Stainless Hlau nrog 18% CR thiab 8% ni. |
| 304L | Cov pa roj carbon tsawg ntawm 3 {{0 4 (l=cov pa roj av, tsawg dua los yog sib npaug 0.03%). |
| 316L | Tsawg-carbon version ntawm 316, nrog ntxiv Molybdenum (MO ~ 2-3%) rau kev txhim kho corrosion. |
🔬 2. Tshuaj lom neeg sib xyaw
| Lub ntsiab | 304 | 304L | 316L |
|---|---|---|---|
| Carbon (c) | Tsawg dua los yog sib npaug rau 0. 08% | Tsawg dua li lossis sib npaug rau 0. 03% | Tsawg dua li lossis sib npaug rau 0. 03% |
| Chromium (cr) | 18–20% | 18–20% | 16–18% |
| Npib tsib caug (ni) | 8–10.5% | 8–12% | 10–14% |
| Molybdenum | Tsis muaj | Tsis muaj | 2–3% |
🧪 3. Corrosion Kuj
| Teem nqi | Kuj tseem ceeb rau General Corrosion | Kuj mus rau Chlorides (piv txwv li Sehaterater) |
|---|---|---|
| 304 | Zoo | Quav (muaj peev xwm nyob hauv chloride) |
| 304L | Tib yam li 304, zoo dua weld-resistance | Tswj kav |
| 316L | Superior (tsaug rau mo) | Zoo tshaj |
⚙️ 4. Neeg kho tshuab & Vuam Cov Khoom
| Ntiag tug | 304 | 304L | 316L |
|---|---|---|---|
| Hwj txwv | Zoo, tab sis xav tau kev pab-weld annealing | Zoo heev (tsis muaj annealing xav tau) | Zoo tshaj |
| Intergranular corrosion tsis kam | Tswj kav | Muaj siab (cov pa roj tsis tshua muaj carbide nag lossis daus) | Siab |
| Lub zog tensile | Siab dua | Me ntsis qis dua | Piv tau |
💰 5. Tus nqi sib piv
304: Feem ntau siv nyiaj txiag
304L: Me ntsis ntau dua 304
316L: Kim kim (vim molybdenum cov ntsiab lus)
🏗️ 6. Cov Ntawv Thov Tib Neeg
| Teem nqi | Cov Ntawv Thov |
|---|---|
| 304 | Cov kav hlau loj, flanges, tso tsheb hlau luam, khoom siv hauv chav ua noj |
| 304L | Welded siab tej nkoj, piping hauv cov chaw muaj teeb meem |
| 316L | Tubrog marine chaw, tshuaj lom neeg, Sealwater Systems |
✅ Ntsiab lus xaus
| Ntiag tug | 304 | 304L | 316L |
|---|---|---|---|
| Cov ntsiab lus carbon | Tsawg dua los yog sib npaug rau 0. 08% | Tsawg dua li lossis sib npaug rau 0. 03% | Tsawg dua li lossis sib npaug rau 0. 03% |
| Molybdenum | Tsis muaj | Tsis muaj | Yog lawm (~ 2-3%) |
| Corrosion Kuj | Zoo | Zoo | Zoo tshaj |
| Hwj txwv | Tswj kav | Zoo tshaj | Zoo tshaj |
| Tus nqi | Qi | Nruab nrab | Siab |
🔧 Xaiv cov lus qhia
Kev siv304rau cov ntawv thov dav dav tsis muaj corrosion nruj.
Xaiv304LThaum vuam yuav tsum muaj yam tsis muaj tom qab kev kho vaj tsev.
Mus nrog316LRau high-chloride, marine, lossis tshuaj ib puag ncig.
