Kev sib piv ntawm 321 stainless hlau thiab 316 stainless hlau
Kev sib piv ntawm 321 stainless hlau thiab 316 stainless hlau
321 stainless hlau, vim nws cov titanium stabilization kev kho mob, zoo tiv thaiv intergranular corrosion, yog li ua tau zoo heev nyob rau hauv siab - kub daim ntawv thov; thaum 316 stainless hlau, muaj molybdenum, muaj zog corrosion kuj nyob rau hauv ib puag ncig nplua nuj nyob rau hauv chlorides thiab tshuaj. Qhov kev xaiv tshwj xeeb yog nyob ntawm qhov chaw thov: 321 stainless hlau yog qhov zoo tagnrho rau cov qauv welded hauv siab - qhov kub thiab txias xws li dav hlau tso pa, thaum 316 stainless hlau zoo tagnrho rau cov khoom siv hauv hiav txwv lossis tshuaj lom neeg.
Dab tsi yog kev siv ntawm 321 stainless hlau?
Nws yog qhov zoo tshaj plaws rau kev tsim cov khoom siv hluav taws xob, cov hlab ntsha siab, thiab cov tank cia. Cov khoom siv thermal: boilers, heat exchangers, thiab lub cub tawg feem ntau yog ua los ntawm 321 stainless hlau vim nws zoo heev kub tsis kam thiab oxidation kuj. Nws kuj tseem pom muaj nyob rau hauv cov khoom siv kho cua sov ua haujlwm.
321 vs 316 Stainless hlau - Dab tsi yog qhov txawv
| Feature | 316 Stainless hlau | 321 Stainless hlau |
|---|---|---|
| Core Advantage | Zoo heev corrosion kuj, tshwj xeeb tshaj yog tiv thaiv chlorides | Zoo heev -kub tsis kam thiab tsis kam mus rau intergranular corrosion |
| Ntsiab Alloying Element | Molybdenum | Titanium |
| Qhov chaw ua haujlwm zoo tshaj plaws | Marine ib puag ncig, tshuaj ua haujlwm, thiab ua zaub mov | Siab - qhov kub thiab txias (425–850℃), xws li cov tshuab tso pa thiab qhov cub |
| Weldability | Zoo, tab sis cov ntu tuab yuav xav tau tom qab-weld annealing | Zoo heev, feem ntau tsis muaj kev tshaj tawm -weld kho cua sov xav tau |
| Nqi & Ntau yam | Feem ntau siab dua (vim kim molybdenum thiab npib tsib xee) | Feem ntau qis dua (piv rau 316) |
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 |
Thov nco ntsoov tias cov txiaj ntsig no yog kwv yees thiab tuaj yeem sib txawv raws li cov khoom lag luam tshwj xeeb, kev kho cua sov, thiab cov txheej txheem kuaj. Cov khoom siv tshuab kuj tuaj yeem cuam tshuam los ntawm kev hloov pauv hauv kev tsim khoom. Ib txwm xa mus rau cov kev qhia tshwj xeeb lossis cov qauv tshiab rau qhov tseeb tshaj plaws thiab nce mus txog - mus rau - cov ntaub ntawv hnub tim.
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
