316 vs 321 Stainless hlau: Dab tsi yog qhov txawv
316 vs 321 Stainless hlau: Dab tsi yog qhov txawv
Qhov sib txawv ntawm 316 thiab 321 stainless hlau: 316 muaj molybdenum, muab nws superior tiv thaiv chloride / acid corrosion (tsim rau marine thiab tshuaj ib puag ncig); thaum 321 muaj titanium, muab qhov zoo tshaj plaws - kub stability thiab weldability, thiab tiv thaiv intergranular corrosion (tsim rau aerospace thiab pa systems). Rau qhov chaw muaj corrosive thiab av noo, 316 raug pom zoo; rau siab heev - daim ntawv thov kub uas yuav tsum tau vuam, 321 raug pom zoo. Nws yuav tsum raug sau tseg tias 321 feem ntau kim dua thiab nyuaj rau kev ua haujlwm.
Dab tsi yog kev siv ntawm 321 stainless hlau?
Kev siv ntau yam ntawm 321 stainless hlau: Aerospace kev lag luam: 321 stainless hlau feem ntau yog siv rau hauv cov khoom siv dav hlau, xws li cov tshuab tso pa thiab lub cav, nyob rau hauv siab - qhov kub thiab txias. Nws zoo heev oxidation tsis kam thiab siab -kub lub zog tuav ua rau nws yog ib qho khoom siv zoo rau cov ntawv thov.
321 Stainless hlau
321 stainless hlau yog titanium-muaj austenitic chromium-nickel alloy. Piv nrog rau feem ntau cov hlau tsis muaj steel, cov hlau no muaj kev tiv thaiv corrosion zoo dua. Tsis tas li ntawd, nws nthuav tawm lub zog zoo tshaj plaws ntawm qhov kub thiab txias piv rau lwm yam stainless hlau. Yog li ntawd, 321 stainless hlau yog qhov zoo tagnrho rau siab - cov ntawv siv kub xws li cov khoom siv hluav taws xob, cov khoom sib txuas, thiab cov cub tawg.
316 Stainless hlau
316 stainless hlau yog molybdenum-muaj, qis-carbon austenitic chromium-nickel alloy. Piv nrog rau feem ntau cov hlau tsis muaj steel, cov hlau no muaj kev tiv thaiv corrosion zoo dua thiab tseem muaj lub zog zoo dua thaum kub kub. Nws cov ntsiab lus molybdenum kuj ua rau nws zoo heev rau pitting corrosion nyob rau hauv chlorinated ib puag ncig, ua rau nws zoo tagnrho rau corrosive ib puag ncig xws li cov khoom noj khoom haus los yog cov chaw kho mob.
321 vs 316 Stainless hlau - Dab tsi yog qhov txawv
Qhov sib npaug ntawm 321 thiab 316 Stainless Hlau:
| GB / T | 321 | 316 |
|---|---|---|
| ASTM / UNS | 321 / S32100 | 316 / S31600 |
| EN | X6CrNiTi18-10 (1.4541) | X5CrNiMo17-12-2 (1.4401) |
| JIS | TIAB SA 321 | TIAB SA 316 |
| GOST | 08Х18Н10Т | 03Х17Н14М3 |
Chemical Composition ntawm 321 vs 316 Stainless hlau
| Element | Qib 316 Stainless Hlau | Qib 321 Stainless Hlau |
|---|---|---|
| C | 0.08 max | 0.08 max |
| Mn | max 2.00 Nws | max 2.00 Nws |
| Si | 0.75 max | 0.75 max |
| P | 0.045 max | 0.045 max |
| S | 0.030 max | 0.030 max |
| Cr | 16.00 – 18.00 | 17.00 – 19.00 |
| Ni | 10.00 – 14.00 | 9.00 – 12.00 |
| Mo | 2.00 – 3.00 | – |
| Ti | – | 5 * C – 0.70 |
Lub cev muaj zog ntawm 321 vs 316 Stainless Hlau:
| Khoom | Qib 316 | Qib 321 |
|---|---|---|
| Qhov ceev (g / cm³) | 7.98 | 7.92 |
| Melting Point (zeeg) | 1398 – 1420 | 1398 – 1420 |
| Thaum tshav kub kub tshwj xeeb (J / kg·K) | 500 | 500 |
| Thermal conductivity (W / m · K) | 16.2 | 16.3 |
| Hluav taws xob tiv thaiv (µΩ·m) | 740 | 720 |
| Modulus ntawm Elasticity (GPa) | 193 | 193 |
| Poisson tus ratio | 0.3 | 0.3 |
| Thermal Expansion (10^-6 / K) | 16.5 – 16.7 | 16.5 – 16.9 |
Mechanical Properties ntawm 321 vs 316 Stainless hlau:
| Khoom | Qib 316 | Qib 321 |
|---|---|---|
| Tensile zog (MPa) | 515 – 690 | 515 – 850 |
| Yield zog (0.2% offset) (MPa) | 205 – 260 | 205 – 230 |
| Elongation (%) | 30 – 40 | 35 – 40 |
| Hardness (Brinell HB) | Tsawg dua lossis sib npaug li 217 | Tsawg dua lossis sib npaug li 217 |
Kev sib piv ntawm Corrosion Resistance ntawm 321 thiab 316 Stainless Hlau
321 Stainless Hlau: Zoo corrosion kuj, tab sis tsis haum rau marine los yog siab - ntsev ib puag ncig.
316 Stainless Hlau: Zoo heev corrosion kuj, tshwj xeeb tshaj yog haum rau marine thiab ntsev tsuag ib puag ncig.
Kev sib piv ntawm Lub zog ntawm 321 thiab 316 Stainless Hlau
321 Stainless Hlau: Lub zog muaj zog, kev ua haujlwm zoo ntawm qhov kub thiab txias.
316 Stainless Hlau: Lub zog siab, tab sis lub zog txo qis ntawm qhov kub thiab txias.
Thaum tshav kub kub Resistance:
Ib qho ntawm qhov sib txawv tseem ceeb tshaj plaws ntawm 321 thiab 316 stainless hlau yog lawv qhov kev ua haujlwm siab - kub. Qhov no yog qhov tseem ceeb tshwj xeeb hauv kev lag luam xws li aerospace, tsim hluav taws xob, tsim hluav taws xob, thiab kev ua tshuaj lom neeg.
| Khoom | 316 Stainless hlau | 321 Stainless hlau |
|---|---|---|
| Maximum Continuous Service Temperature (cua) | 870 degree | 900 degree |
| Maximum Continuous Service Temperature (steam) | 925 degree | 950 degree |
| Sensitization thaum vuam | Kev pheej hmoo siab | Tsis tshua muaj kev pheej hmoo vim Ti stabilization |
| Thermal Expansion Coefficient (20-100 degree) | 16.0 × 10⁻⁶ / degree | 16.2 × 10⁻⁶ / degree |
Machinability & Fabrication
| Khoom | 316 Stainless hlau | 321 Stainless hlau |
|---|---|---|
| Machineability | Nruab nrab | Tsawg me ntsis |
| Kev tsim / Khoov | Zoo heev | Zoo heev |
| Punching / Stamping | Zoo | Zoo |
| Polishing / Nto tiav | Zoo heev | Zoo heev |
316 stainless hlau yog tsim rau tej yaam num uas yuav tsum tau siab corrosion kuj thiab machining precision.
Thaum thermal stability thiab weldability tseem ceeb tshaj qhov yooj yim ntawm machining, 321 stainless hlau yog qhov kev xaiv.
321 vs 316: Yuav xaiv li cas?
Corrosion ib puag ncig:
High chloride → 316
Nruab nrab corrosion, kub kub → 321
Qhov kub thiab txias:
600℃los yog cyclic kub → 321
< 600°C → 316
Welded qauv:
Complex vuam, kev pheej hmoo ntawm rhiab heev → 321
Yooj yim vuam hauv tshuaj / marine → 316 lossis 316L
Kev xav txog tus nqi:
Yog tias corrosion kuj yog qhov tseem ceeb → 316
Yog tias qhov kub thiab qhov vuam ruaj khov yog qhov tseem ceeb → 321
Gnee Steel muaj kev sab laj engineering, kev cai - txiav cov khoom, MTC ntawv pov thawj, thiab kev xa khoom thoob ntiaj teb rau ob qib khoom. Thov hu rau peb ntawmru@gneesteelgroup.comrau ib nqe lus.
Gnee Steel tshwj xeeb hauv kev tsim khoom ntawm ntau yam khoom siv stainless hlau. Gnee Steel cov khoom ntim khoom suav nrog: Hlau Strapping: Cov kav dej nrog ib txoj kab uas hla ntawm 3 ntiv tes los yog tsawg dua yog feem ntau khi ua ke nrog polypropylene zaj duab xis los tiv thaiv xeb thaum thauj dej hiav txwv, thiab tom qab ntawd khi nrog cov hlua hlau. Ntoo Cases / Crates: Cov kav dej feem ntau yog ntim rau hauv cov rooj ntoo lossis cov thawv los tiv thaiv cov kav dej thaum lub sij hawm thauj mus los, tshwj xeeb tshaj yog cov uas ntev dua los yog muaj qhov loj dua. Seaworthy Export Ntim: Cov neeg muag khoom feem ntau siv cov txheej txheem seaworthy export ntim, uas tuaj yeem suav nrog ntau yam khoom siv thiab cov txheej txheem los tiv thaiv cov kav dej thaum thauj. Tarpaulin Ntim: Qhov no tiv thaiv los nag, dej hiav txwv, thiab lwm yam sab nraud los ntawm kev nkag mus rau lub thawv xa khoom thaum thauj. Gnee Steel tshwj xeeb hauv kev tsim thiab muag cov ntaub ntawv alloy. Gnee Steel cov khoom siv dav siv hauv aerospace, tshuaj, hluav taws xob, tsheb, thiab hluav taws xob nuclear, thiab peb tuaj yeem muab cov khoom siv alloy customized raws li cov neeg siv khoom xav tau. Rau cov khoom siv alloy pricing lossis customized alloy cov ntaub ntawv daws teeb meem, thov hu rau peb rau ib qho kev tsocai:ru@gneesteelgroup.com