Qhov sib txawv tseem ceeb ntawm 304 thiab 304L stainless hlau nyob hauv lawv cov ntsiab lus carbon: 304 stainless hlau muaj cov ntsiab lus siab tshaj plaws ntawm 0.08%, thaum 304L (tsawg-}} carbon) stainless hlau muaj cov ntsiab lus siab tshaj ntawm 0.03%. Yog li, 304L yog qhov tsim nyog rau kev siv vuam ntau dua vim tias nws tiv thaiv carbide nag lossis daus, uas tuaj yeem ua rau corrosion hauv welded 304 stainless hlau. Txawm hais tias 304 stainless hlau muaj zog me ntsis, 304L stainless hlau muaj kev tiv thaiv zoo dua rau kev sib xyaw ua ke tom qab vuam, ua rau nws zoo tagnrho rau cov tuab - ntu ntu thiab corrosive ib puag ncig (xws li kev ua tshuaj lom neeg lossis ib puag ncig marine), thiab feem ntau tshem tawm qhov xav tau tom qab- vuam annealing.
Dab tsi yog "L" hauv 304L stainless hlau sawv rau?
Tsab ntawv L tom qab tus lej, xws li 304L, qhia tias cov ntsiab lus carbon tsuas yog qis dua 0.03% (qhov feem ntau cov pa roj carbon ntau yog 0.08%, thiab qee qib tuaj yeem muaj cov ntsiab lus carbon siab txog 0.15%).
Dab tsi yog 304 stainless hlau?
304 stainless hlau, tseem hu ua A2 lossis 18/8 stainless hlau, muaj 18% chromium thiab 8% npib tsib xee, muab kev tiv thaiv zoo corrosion, formability, thiab durability. Nws tsis tuaj yeem hardened los ntawm kev kho cua sov thiab feem ntau yog siv nyob rau hauv lub xeev annealed. Nws yog weldable thiab machinable, thiab feem ntau siv hauv cov dab dej, cov khoom ntim khoom noj, cov cuab yeej phais, thiab cov pa tawm.
Dab tsi yog 304L stainless hlau?
304L stainless hlau yog ib qho muaj zog, nyiaj - grey alloy muaj li ntawm 70% hlau, 18% chromium, thiab 8% npib tsib xee. "L" sawv cev rau "tsawg carbon," nrog cov ntsiab lus ntawm 0.03%, qis dua 304 stainless hlau. Qhov no tiv thaiv carbide nag lossis daus thaum vuam thiab txhim kho corrosion kuj. Nws ua tau zoo nyob rau hauv ib puag ncig corrosive yam tsis tas yuav tsum tau annealing. Cov khoom siv no feem ntau yog siv hauv kev lag luam xws li kev ua tshuaj lom neeg, kev ua dej haus, kev tsim khoom noj, thiab kev tsim kho.
Tshuaj muaj pes tsawg leeg ntawm 304 vs 304L (los ntawm Nyhav%)
| Element | 304 Stainless hlau | 304L Stainless hlau |
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.08% | Tsawg dua lossis sib npaug li 0.03% |
| Chromium (Cr) | 18.0-20.0% | 18.0-20.0% |
| Nickel (Ni) | 8.0-10.5% | 8.0-12.0% |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 2.00% | Tsawg dua lossis sib npaug li 2.00% |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.75% | Tsawg dua lossis sib npaug li 0.75% |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.045% | Tsawg dua lossis sib npaug li 0.045% |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.030% | Tsawg dua lossis sib npaug li 0.030% |
| Nitrogen (N) | Tsawg dua lossis sib npaug li 0.10% | Tsawg dua lossis sib npaug li 0.10% |
| Molybdenum (hli) | Tsis muaj | Tsis muaj |
Lub cev muaj zog ntawm 304 vs 304L
| Khoom | 304 Stainless hlau | 304L Stainless hlau |
| Qhov ntom | 8.0 g / cm³ | 8.0 g / cm³ |
| Melting Point | 1400℃- 1450 degree | 1400℃- 1450 degree |
| Thermal conductivity | 16.2 W / m·K ntawm 100 degree | 16.2 W / m·K ntawm 100 degree |
| Modulus ntawm Elasticity | 193 gp ua | 193 gp ua |
| Tensile zog | ~ 515 MPa | ~ 485 MPa |
Mechanical Properties ntawm 304 vs 304L
| Khoom | 304 Stainless hlau | 304L Stainless hlau |
| Tensile zog | 515 MPa ua | 485 MPa ua |
| Yield zog | 205 MPa | 170 MPa |
| Elongation ntawm Break | 40% | 40% |
| Hardness (Rockwell B) | 82 | 82 |
| Impact Toughness | Siab | Siab |
Qib sib npaug ntawm 304 thiab 304L
| Lub teb chaws/Standard | Specification | Qib (304) | Qib (304L) |
| Tebchaws Meskas | ASTM A240, ASTM A312 | 304 | 304L |
| Tuam Tshoj | GB/T 1220, GB/T 14975 | 0c18n 9 | 00Cr19Ni10 |
| Nyiv | JIS G4304, JIS G4305 | SUS 304 | SUS 304 L |
| Thoob ntiaj teb | TS EN ISO 15510 | X5CrNi18-10 | X2CrNi19-11 |
| Teb chaws Europe | TS EN 10088-2 | 1.4301 | 1.4307 |
Kev siv ntawm 304 thiab 304L Stainless Hlau
Txawm hais tias 304 thiab 304L stainless hlau muaj cov tshuaj lom neeg thiab lub cev zoo sib xws, lawv cov ntsiab lus carbon sib txawv ua rau muaj qhov sib txawv hauv lawv qhov chaw thov. Cov kev sib txawv no txiav txim siab cov ntawv thov tsim nyog tshaj plaws rau txhua qib.
Kev siv ntawm 304 Stainless Hlau
Structure Cheebtsam:Siv nyob rau hauv lub tsev thav duab, txuas hniav, thiab thauj khoom-cov kabmob.
Automotive qhov chaw:Feem ntau siv nyob rau hauv lub tshuab tso pa tawm, cov khoom siv cav, thiab cov khoom siv kho kom zoo nkauj.
Industrial khoom:Haum rau cov tank, kav dej, thiab cov tshuab raug rau ntau yam tshuaj.
Cov khoom siv:Siv rau hauv chav ua noj dab dej, cookware, thiab khoom siv hauv tsev.
Cov cuab yeej kho mob:Siv rau hauv cov cuab yeej phais, cov cuab yeej kho hniav, thiab cov khoom siv hauv tsev kho mob.
Cov khoom siv ua zaub mov:Siv nyob rau hauv kev cia khoom noj, tuav, thiab npaj cov khoom, xws li ntim, tais diav, thiab conveyor systems.
Kev siv ntawm 304L Stainless Hlau
Welded qauv:Zoo dua rau welded kav, tso tsheb hlau luam, thiab kub exchangers.
Kev ua tshuaj lom neeg:Siv rau hauv cov khoom siv los tuav cov tshuaj corrosive, xws li reactors thiab cov tank sib xyaw.
Marine ib puag ncig:Tsim nyog rau nkoj tsim, offshore platforms, thiab underwater pipelines.
Cov cuab yeej siv tshuaj:Siv nyob rau hauv cov khoom siv tshuaj uas yuav tsum tau muaj purity siab.
Kev ua zaub mov:Qhov zoo tshaj plaws rau kev tuav cov khoom noj acidic thiab dej haus, xws li fermentation tanks thiab cov khoom noj khoom haus.
Gnee Steel kuj muab kev cai stainless stee 304 khoom nyob rau hauv ntau qhov ntau thiab tsawg thiab specifications. Thov xa koj cov duab kos rau peb rau kev tsocai!