Qhov sib txawv ntawm stainless hlau 316 thiab 316L
Qhov sib txawv ntawm SS316 thiab SS316L nyob rau hauv lawv cov ntsiab lus carbon: 316L (tsawg carbon) muaj cov ntsiab lus siab tshaj plaws ntawm 0.03%, uas ua rau muaj kev sib tw zoo dua thiab kev tiv thaiv corrosion ntawm welded Cheebtsam; thaum 316 muaj cov ntsiab lus siab tshaj plaws ntawm 0.08%, muab lub zog me ntsis, tab sis ua rau muaj kev pheej hmoo ntawm "weld decay" (sensitization) yog tias tsis muaj cua sov- kho tom qab vuam. Ob leeg yog marine-qib molybdenum- ua kom cov hlau tsis huv, tab sis rau hnyav-cov haujlwm vuam, tshuaj lom neeg, thiab kev siv dej hiav txwv uas xav tau siab tshaj corrosion kuj, 316L yog qhov kev xaiv zoo dua; thaum 316 yog qhov tsim nyog rau cov ntawv thov uas vuam tsis tas yuav tsum tau lossis vuam cov kev cai tsis nruj, vim nws muaj cov khoom siv zoo dua.
Dab tsi yog 316L stainless hlau?
316L stainless hlau yog kev kho mob - qib phais hlau. Nws muaj cov ntsiab lus qis dua li lwm hom hlau thiab boasts lub zoo meej luster, ua rau nws haum rau ntau yam hniav nyiaj hniav kub khoom, xws li bracelets, rings, pendants, tsej, necklaces, thiab ntau dua. Qhov tseeb, "L" hauv 316L (cov ntsiab lus siab tshaj ntawm 0.03%) sawv cev rau cov ntsiab lus qis carbon.
316 thiab 316L Stainless hlau
316 Stainless hlau
316-qib stainless hlau yog austenitic stainless hlau feem ntau muaj xws li chromium, nickel, carbon, thiab molybdenum. Lub xub ntiag ntawm molybdenum (feem ntau ntawm 2% thiab 3%) txhim kho corrosion kuj ntawm 316 stainless hlau, ua rau nws nyiam cov khoom siv rau kev lag luam feem ntau, thib ob tsuas yog 304 stainless hlau. Molybdenum kuj tseem txhim kho cov neeg kho tshuab lub zog ntawm stainless hlau. Yog li ntawd, 316 stainless hlau yog siv nyob rau hauv corrosive ib puag ncig uas tej zaum yuav muaj teeb meem tshwm sim, xws li nyob rau hauv refineries los yog tshuaj nroj tsuag, thiab nyob rau hauv lub tsim ntawm lub dav hlau engine qhov chaw los yog tshav kub exchangers.
| C | Mn | Si | P | S | Cr | Mo | Ni |
| 0-0.07 | 0-2.00 | 0-1.00 | 0-0.05 | 0-0.02 | 16.50-18.50 | 2.00-2.50 | 10.00-13.00 |
316L Stainless hlau
316L stainless hlau yog "qis-carbon version" ntawm 316 stainless hlau, nrog cov ntsiab lus carbon tsawg dua 0.03%. Cov ntsiab lus qis dua cov pa roj carbon monoxide txo cov nag lossis daus ntawm carbide deposits ntawm grain ciam teb thaum kho cua sov. Vim tias qhov txo qis ntawm kev hnov mob, 316L stainless hlau nthuav tawm kev tiv thaiv corrosion ntau dua li 316 stainless hlau thaum vuam.
| C | Mn | Si | P | S | Cr | Mo | Ni |
| 0-0.03 | 0-2.00 | 0-1.00 | 0-0.05 | 0-0.02 | 16.50-18.50 | 2.00-2.50 | 10.00-13.00 |
Stainless hlau 316 Vs 316L sib npaug qib
| Txuj | 316 | 316L |
|---|---|---|
| AISI / ASTM (USA) | 316 | 316L |
| UNS (USA) | S31600 | S31603 |
| EN / DIN (Tebchaws Europe) | X5CrNiMo17-12-2 (1.4401) | X2CrNiMo17-12-2 (1.4404) |
| JIS (Nyiv) | TIAB SA 316 | SUS 316L |
| BS (UK) | 316S31 | 316S11 |
| AFNOR (Fabkis) | Z7CND17-11-02 | Z2CND17-11-02 |
| GOST (Russia) | 03Х17Н13М2 | 03Х17Н13М2 |
| ISO | ISO 683/13-Fe 8 | ISO 683/13-Fe 8L |
Mechanical zog ntawm AISI 316 VS 316L
| Khoom | Tus nqi |
|---|---|
| Tensile zog (min) | 485 MPa (70,300 psi) |
| Yield zog (0.2% min) | 170 MPa (24,700 psi) |
| Elongation (min) | 40% |
| Hardness (Brinell) | Tsawg dua lossis sib npaug li 217 HB |
| Hardness (Rockwell B) | Tsawg dua lossis sib npaug li 95 HRB |
| Modulus ntawm Elasticity | 193 GPa (28 x 10⁶ psi) |
316L vs 316 Stainless hlau: Qhov sib piv
316L thiab 316 qib stainless hlau zoo ib yam li cov kev xav tau ntawm lub zog thiab lwm yam khoom siv kho tshuab. Txawm li cas los xij, muaj qee qhov sib txawv ntawm ob, raws li tau piav qhia hauv qab no:
| Cov khoom | 316L vs 316 Stainless hlau |
| Corrosion kuj | 316L stainless hlau nthuav tawm zoo dua intergranular corrosion tsis kam tshaj 316 stainless hlau vim nws txo qis carbon. |
| Weldability | Qib 316 yog qhov cuam tshuam ntau dua rau kev sib tsoo; Yog li, 316L feem ntau yog xav tau rau cov haujlwm uas xav tau vuam. Cov pa roj carbon qis qis hauv kev txo cov carbide precipitates raws cov ciam teb thaum lub sij hawm vuam. |
| Kub tiv taus | Ob hom, 316 thiab 316L stainless hlau, tiv taus qhov kub thiab txias. |
| Magnetism | 316 stainless hlau yog xyaum paramagnetic vim nws cov qauv siv lead ua austenitic . 316L stainless hlau, txawm hais tias zoo sib xws hauv cov khoom, muaj peev xwm ua tau cov hlau nplaum. |
| Nqi | Ob leeg 316L thiab 316 stainless hlau raug nqi zoo ib yam. |
| Daim ntawv thov | Ob leeg stainless hlau yog siv feem ntau hauv cov tshuaj, tshuaj, khoom noj khoom haus -qib, lossis cov lag luam zoo sib xws uas xav tau kev tiv thaiv tshav kub thiab tshuaj. Qhov no suav nrog kev tsim cov khoom siv hluav taws xob, cov khoom siv dav hlau, thiab cov khoom siv hluav taws xob. |
Vuam 316 thiab 316L Stainless hlau
Zoo ib yam li lwm cov qib austenitic stainless hlau, 316 thiab 316L stainless hlau tuaj yeem welded siv cov txheej txheem arc vuam, xws li TIG (Tungsten Inert Gas welding). Txawm li cas los xij, lawv raug cuam tshuam rau ntau yam teeb meem, xws li kub tawg lossis txo corrosion kuj. Txhawm rau daws cov teeb meem no, cov hlau muab tub lim siv thaum vuam yuav tsum muaj cov molybdenum txaus kom haum rau qhov sib xyaw ntawm cov hlau hauv paus, yog li ua kom haum rau qhov chaw ua haujlwm corrosive. Tsis tas li ntawd, siab - purity argon shielding tuaj yeem siv los tiv thaiv oxidation ntawm cov hauv paus hniav thiab tswj kev tiv thaiv corrosion.
Txhawm rau ua tiav cov txiaj ntsig zoo vuam nrog 316 thiab 316L stainless hlau, welders yuav tsum nkag siab txog lawv cov yam ntxwv thiab cov kev hloov pauv ntawm cov khoom uas tshwm sim thaum cov txheej txheem xws li vuam. Los ntawm kev nkag siab txog qhov sib txawv ntawm qib 316L thiab 316, cov tuam txhab tsim khoom tuaj yeem ua kom muaj zog ntawm lawv cov ntaub ntawv thov thiab ua tiav qhov zoo tshaj plaws corrosion thiab siab -kub tsis kam.
SS 316 VS 316L Qhov txawv
| Khoom | SIB 316 | SWB 316L |
|---|---|---|
| Weldability | Zoo | Zoo heev (vim cov pa roj carbon tsawg) |
| Corrosion Resistance | Siab | Siab heev nyob rau hauv welded seem |
| Mechanical Strength | Siab dua me ntsis | Tsawg me ntsis |
| Daim ntawv thov | Kev ua tshuaj lom neeg, marine | Pharmaceutical, welded qhov chaw |
