Raws li-cast structure ntawmaustenitic stainless hlaucastings yog austenite + carbide los yog austenite + ferrite. Kev kho cua sov tuaj yeem txhim kho corrosion kuj ntawm austenitic stainless hlau castings.
Qib sib npaug ntawm Austenitic Stainless Hlau | ||||||||
| AISI | W-stoff | DIN | BS | SS | AFNOR | UNE / IHA | JIS | UNI |
| 304 | 1.4301 ib | Tx5 CrNi 18 9 | 304 S 15 | 2332 ib | Z 6 CN 18.09 | F.3551 | TIAB SA 304 | X5CrNi18 10 |
| 305 | 1.4303 ib | Tx5 CrNi 18 12 | 305 Ib. 19 | - | Z 8 CN 18.12 | - | SIB 305 | Tx8CrNi19 10 |
| 303 | 1.4305 Nws | X12 CrNiS 18 8 | 303 Ib. 21 | 2346 ib | Z 10 CNF 18.09 | F.3508 | TIAB SA 303 | X10CrNiS 18 09 |
| 304l ua | 1.4306 ib | X2 CrNiS 18 9 | 304 S 12 | 2352 ib | Z 2 CN 18.10 | F.3503 | SUS 304 L | X2CrNi18 11 |
| 301 | 1.4310 Nws | X12 CrNi 17 7 | - | 2331 ib | Z 12 CN 17.07 | F.3517 | TIAB SA 301 | X12CrNi17 07 |
| 304 | 1.4350 Nws | Tx5 CrNi 18 9 | 304 Ib. 31 | 2332 ib | Z 6 CN 18.09 | F.3551 | TIAB SA 304 | X5CrNi18 10 |
| 304 | 1.4350 Nws | Tx5 CrNi 18 9 | 304 Ib. 31 | ib 2333 | Z 6 CN 18.09 | F.3551 | TIAB SA 304 | X5CrNi18 10 |
| 304 LN ib | 1.4311 ib | X2 CrNiN 18 10 | 304s62 ib | 2371 ib | Z 2 CN 18.10 | - | SUS 304 LN | - |
| 316 | 1.4401 Nws | X5 CrNiMo 18 10 | 316 Ib. 16 | 2347 ib | Z 6 NPO 17.11 | F.3543 | TIAB SA 316 | X5CrNiMo17 12 |
| 316l ua | 1.4404 ib | - | 316 S 12/13/14/22/24/24/12/13/12/13/14/22/24/ 12/13/14/22/24 | 2348 ib | Z 2 CND 17.13 | SUS 316L | X2CrNiMo17 12 | |
| 316 LN ib | 1.4429 ib | X2 CrNiMoN 18 13 | - | 2375 ib | Z 2 CND 17.13 | - | SUS 316 LN | - |
| 316l ua | 1.4435 ib | X2 CrNiMo 18 12 | 316 S 12/13/14/22/24/24/12/13/12/13/14/22/24/ 12/13/14/22/24 | 2353 ua | Z 2 CND 17.13 | - | SUS 316L | X2CrNiMo17 12 |
| 316 | 1.4436 ib | - | 316 Ib. 33 | 2343 ib | Z 6 CND18-12-03 | - | - | X8CrNiMo 17 13 |
| 317l ua | 1.4438 ib | X2 CrNiMo 18 16 | 317 Ib. 12 | 2367 ib | Z 2 CND 19.15 | - | SIB 317 L | X2CrNiMo18 16 |
| 329 | 1.4460 Nws | X3 CrNiMoN 27 5 2 | - | 2324 ib | Z5 CND 27.05.Az | F.3309 | TIAB SA 329 J1 | - |
| 321 | 1.4541 ib | X10 CrNiTi 18 9 | 321 Ib. 12 | 2337 ib | Z 6 NPO 18.10 | F.3553 | TIAB SA 321 | X6CrNiTi18 11 |
| 347 ib | 1.4550 Nws | X10 CrNiNb 18 9 | 347 Ib. 17 | ib 2338 | Z 6 CNNb 18.10 | F.3552 | TIAB SA 347 | X6CrNiNb18 11 |
| 316 Ti | 1.4571 ib | X10 CrNiMoTi 18 10 | 320 Ib. 17 | 2350 | Z 6 CNDT 17.12 | F.3535 | - | X6CrNiMoTi 17 12 |
| 309 | 1.4828 ib | X15 CrNiSi 20 12 | 309 Ib. 24 | - | Z 15 ZOS 20.12 | - | TIAB SA 309 | X16 CrNi 24 14 |
| 330 | 1.4864 ib | X12 NiCrSi 36 16 | - | - | Z 12 NCS 35.16 | - | TIAB SA 330 | - |
1. Kev kho cua sov
Cov lus qhia dav dav ntawm kev kho cua sov yog: cua sov lub casting rau 950 ° C - 1175 ° C thiab muab tso rau hauv dej, roj los yog huab cua tom qab lub tshav kub preservation kom yaj tag nrho cov carbides nyob rau hauv stainless hlau kom tau ib tug ib-theem qauv. Qhov kev xaiv ntawm kev daws qhov kub thiab txias yog nyob ntawm cov ntsiab lus carbon hauv cov cam khwb cia hlau. Qhov siab dua cov ntsiab lus carbon, qhov siab dua qhov kev daws teeb meem kub xav tau.
Txhawm rau txo qhov kub ntawm qhov sib txawv ntawm qhov saum npoo ntawm cov hlau casting thiab cov tub ntxhais thaum lub sij hawm cua sov txheej txheem, cov txheej txheem cua sov ntawm kev kho cov austenitic stainless hlau yuav tsum tau preheated ntawm qhov kub thiab txias thiab sai sai rhuab mus rau qhov kub thiab txias. Lub sij hawm tuav yuav tsum nce ntxiv raws li cov phab ntsa thickness ntawm cov casting nce.
Qhov nruab nrab cua txias rau kev daws teeb meem tuaj yeem yog dej, roj lossis cua, uas dej feem ntau siv. Cua txias tsuas yog haum rau nyias-walled steel castings.
Specifications of Solid Solution Treatment of Cast Austenitic Stainless Steel | |||
| Qib hauv Suav teb | Sib npaug Qib Abroard | Kev ntsuas kub / ℃ | Hardness / HBW |
| ZG03Cr18Ni10 | / | 1050-1100 Nws | / |
| ZG0Cr18Ni9 | / | 1080-1130 Nws | / |
| ZG1Cr18Ni9 | G-X15CrNi18 8 (German Qib) | 1050-1100 Nws | 140-190 : kuv |
| ZGCr18Ni9Ti | 950-1050 : kuv | 125-180 : kuv | |
| ZGCr18Ni9Mo2Ti | X18H9M2 (Russian Qib) | 1000-1050 Nws | 140-190 : kuv |
| ZG1Cr18Ni12Mo2Ti | X18H12M2 (Russian Qib) | 1100-1150 Nws | / |
| ZGCr18Ni11B | X18H11B (Russian Qib) | 1100-1150 Nws | / |
| ZG03Cr18Ni10 | CF-3 (US Qib) | 1040-1120 Nws | / |
| ZG08Cr19Ni11Mo3 | CF-3M (US Qib) | 1040-1120 Nws | 150-170 ib |
| ZG08Cr19Ni9 | CF-8 (US Qib) | 1040-1120 Nws | 140-156 : kuv |
| ZG08Cr19Ni10Nb | CF-8C (US Qib) | 1065 - 1120 (Stablization ntawm 870 - 900) | 149 |
| ZG07Cr19Ni10Mo3 | CF-8M (Tebchaws Asmeskas) | 1065-1120 : kuv | 156-210 : kuv |
| ZG16Cr19Ni10 | CF-16F (US Qib) | 1095-1150 ib | 150 |
| ZG2Cr19Ni9 | CF-20 (US Qib) | 1095-1150 ib | 163 |
| ZGCr19Ni11Mo4 | CG-8M (US Qib) | 1040-1120 Nws | 176 |
| ZGCr24Ni13 | 1095-1150 ib | 190 | |
| ZG1Cr24Ni20Mo2Cu3 | 1100-1150 Nws | / | |
| ZG2Cr15Ni20 | CK-20 (US Qib) | 1095-1175 Ib | 144 |
| ZGCr20Ni29Mo3Cu3 | CH-7M (US Qib) | 1120 | 130 |
| ZG1Cr17Mn13N | 1100 | 223-235 : kuv | |
| ZG1Cr17Mn13Mo2CuN | 1100 | / | |
| ZG0Cr17Mn13Mo2CuN | 1100 | 223-248 : kuv | |
2. Kev ruaj ntseg
Austenitic stainless hlau muaj kev tiv thaiv corrosion zoo heev tom qab kev daws teeb meem. Txawm li cas los xij, thaum lub casting yog reheated rau 500 ° C-850 ° C los yog lub casting ua hauj lwm nyob rau hauv qhov kub thiab txias, chromium carbide yuav rov ua dua nyob rau hauv lub austenite grain ciam teb, ua rau grain ciam corrosion los yog weld cracking. Qhov tshwm sim no hu ua sensitization. Txhawm rau txhim kho qhov sib txawv ntawm kev ua haujlwm corrosion ntawm xws li austenitic stainless hlau castings, nws yog feem ntau yuav tsum tau ntxiv alloying ntsiab xws li titanium thiab niobium. Tom qab kev daws teeb meem, rov ua kom sov rau 850 ° C - 930 ° C, thiab tom qab ntawd txias sai sai. Nyob rau hauv txoj kev no, cov carbides ntawm titanium thiab niobium yog thawj precipitated los ntawm lub austenite, yog li tiv thaiv cov nag lossis daus ntawm chromium carbide thiab txhim kho cov nplej ciam corrosion kuj ntawm stainless hlau.
Post lub sij hawm: Aug-18-2021