Ko te hanganga rite-maka okowiri tira austenitiche austenite + carbide ranei austenite + ferrite. Ka taea e te maimoatanga wera te whakapai ake i te parenga waikura o te whakarewanga kowiri tira austenitic.
Koeke Ōrite o Austenitic Kowiri tira | ||||||||
| AISI | W-whakapapa | DIN | BS | SS | AFNOR | UNE / IHA | JIS | UNI |
| 304 | 1.4301 | X5 CrNi 18 9 | 304 S 15 | 2332 | Z 6 CN 18.09 | F.3551 | SUS 304 | X5CrNi18 10 |
| 305 | 1.4303 | X5 CrNi 18 12 | 305 S 19 | - | Z 8 CN 18.12 | - | SUS 305 | X8CrNi19 10 |
| 303 | 1.4305 | X12 CrNiS 18 8 | 303 S 21 | 2346 | Z 10 CNF 18.09 | F.3508 | SUS 303 | X10CrNiS 18 09 |
| 304L | 1.4306 | X2 CrNiS 18 9 | 304 S 12 | 2352 | Z 2 CN 18.10 | F.3503 | SUS 304L | X2CrNi18 11 |
| 301 | 1.4310 | X12 CrNi 17 7 | - | 2331 | Z 12 CN 17.07 | F.3517 | SUS 301 | X12CrNi17 07 |
| 304 | 1.4350 | X5 CrNi 18 9 | 304 S 31 | 2332 | Z 6 CN 18.09 | F.3551 | SUS 304 | X5CrNi18 10 |
| 304 | 1.4350 | X5 CrNi 18 9 | 304 S 31 | 2333 | Z 6 CN 18.09 | F.3551 | SUS 304 | X5CrNi18 10 |
| 304LN | 1.4311 | X2 CrNiN 18 10 | 304 S 62 | 2371 | Z 2 CN 18.10 | - | SUS 304 LN | - |
| 316 | 1.4401 | X5 CrNiMo 18 10 | 316 S 16 | 2347 | Z 6 CND 17.11 | F.3543 | SUS 316 | X5CrNiMo17 12 |
| 316L | 1.4404 | - | 316 S 12/13/14/22/24 | 2348 | Z 2 CND 17.13 | SUS316L | X2CrNiMo17 12 | |
| 316LN | 1.4429 | X2 CrNiMoN 18 13 | - | 2375 | Z 2 CND 17.13 | - | SUS 316 LN | - |
| 316L | 1.4435 | X2 CrNiMo 18 12 | 316 S 12/13/14/22/24 | 2353 | Z 2 CND 17.13 | - | SUS316L | X2CrNiMo17 12 |
| 316 | 1.4436 | - | 316 S 33 | 2343 | Z 6 CND18-12-03 | - | - | X8CrNiMo 17 13 |
| 317L | 1.4438 | X2 CrNiMo 18 16 | 317 S 12 | 2367 | Z 2 CND 19.15 | - | SUS 317 L | X2CrNiMo18 16 |
| 329 | 1.4460 | X3 CrNiMoN 27 5 2 | - | 2324 | Z5 CND 27.05.Az | F.3309 | SUS 329 J1 | - |
| 321 | 1.4541 | X10 CrNiTi 18 9 | 321 S 12 | 2337 | Z 6 CND 18.10 | F.3553 | SUS 321 | X6CrNiTi18 11 |
| 347 | 1.4550 | X10 CrNiNb 18 9 | 347 S 17 | 2338 | Z 6 CNNb 18.10 | F.3552 | SUS 347 | X6CrNiNb18 11 |
| 316Ti | 1.4571 | X10 CrNiMoTi 18 10 | 320 S 17 | 2350 | Z 6 CNDT 17.12 | F.3535 | - | X6CrNiMoTi 17 12 |
| 309 | 1.4828 | X15 CrNiSi 20 12 | 309 S 24 | - | Z 15 CNS 20.12 | - | HUH 309 | X16 CrNi 24 14 |
| 330 | 1.4864 | X12 NiCrSi 36 16 | - | - | Z 12 NCS 35.16 | - | HUH 330 | - |
1. Rongoa Heat Treatment
Ko te tohu whanui mo te maimoatanga wera otinga ko: te whakamahana i te makanga ki te 950°C - 1175°C me te whakanoho ki roto i te wai, te hinu, te hau ranei i muri i te whakamaaramatanga o te wera ki te whakakore rawa i nga carbide i roto i te kowiri tira kia whiwhi ai i te hanganga-waahanga kotahi. Ko te whiriwhiringa o te pāmahana otinga ka whakawhirinaki ki te ihirangi waro i roto i te rino maka. Ko te teitei o te ihirangi waro, ka teitei ake te pāmahana otinga totoka e hiahiatia ana.
I roto i te tikanga ki te whakaiti i te rerekētanga pāmahana i waenganui i te mata o te makanga maitai me te matua i roto i te tukanga whakawera, te tikanga whakawera o te maimoatanga otinga o austenitic kowiri tira kia preheated i te pāmahana iti, me te ka hohoro wera ki te pāmahana otinga. Ko te wa pupuri kia rite ki te whakanui ake i te mea ka piki ake te matotoru o te pakitara o te makanga.
Ko te tikanga whakamahana mo te maimoatanga otinga ko te wai, te hinu, te hau ranei, ko te wai te mea tino whakamahia. He pai anake te whakamahana o te hau mo nga whakarewa rino angiangi-taiepa.
Nga Whakatakotoranga mo te Whakamotitia Rongoa Maamaa o Maka Austenitic Stainless Steel | |||
| Koeke i Haina | Koeke Taurite ki Tawahi | Te Mahana Rongoa / ℃ | Te pakeke / HBW |
| ZG03Cr18Ni10 | / | 1050 - 1100 | / |
| ZG0Cr18Ni9 | / | 1080 - 1130 | / |
| ZG1Cr18Ni9 | G-X15CrNi18 8 (Koeke Tiamana) | 1050 - 1100 | 140 - 190 |
| ZGCr18Ni9Ti | 950 - 1050 | 125 - 180 | |
| ZGCr18Ni9Mo2Ti | X18H9M2 (Rūhia Kōeke) | 1000 - 1050 | 140 - 190 |
| ZG1Cr18Ni12Mo2Ti | X18H12M2 (Koeke Ruhia) | 1100 - 1150 | / |
| ZGCr18Ni11B | X18H11B (Rūhia Kōeke) | 1100 - 1150 | / |
| ZG03Cr18Ni10 | CF-3 (US Kōeke) | 1040 - 1120 | / |
| ZG08Cr19Ni11Mo3 | CF-3M (US Kōeke) | 1040 - 1120 | 150 - 170 |
| ZG08Cr19Ni9 | CF-8 (US Kōeke) | 1040 - 1120 | 140 - 156 |
| ZG08Cr19Ni10Nb | CF-8C (US Kōeke) | 1065 - 1120 (Whakapumau i te 870 - 900 ) | 149 |
| ZG07Cr19Ni10Mo3 | CF-8M (US Kōeke) | 1065 - 1120 | 156 - 210 |
| ZG16Cr19Ni10 | CF-16F (US Kōeke) | 1095 - 1150 | 150 |
| ZG2Cr19Ni9 | CF-20 (US Kōeke) | 1095 - 1150 | 163 |
| ZGCr19Ni11Mo4 | CG-8M (US Kōeke) | 1040 - 1120 | 176 |
| ZGCr24Ni13 | 1095 - 1150 | 190 | |
| ZG1Cr24Ni20Mo2Cu3 | 1100 - 1150 | / | |
| ZG2Cr15Ni20 | CK-20 (US Kōeke) | 1095 - 1175 | 144 |
| ZGCr20Ni29Mo3Cu3 | CH-7M (US Kōeke) | 1120 | 130 |
| ZG1Cr17Mn13N | 1100 | 223 - 235 | |
| ZG1Cr17Mn13Mo2CuN | 1100 | / | |
| ZG0Cr17Mn13Mo2CuN | 1100 | 223 - 248 | |
2. Whakapumau
Austenitic kowiri tira he pai te aukati waikura i muri i te maimoatanga otinga. Heoi, ka whakawerahia te whakarewanga ki te 500°C-850°C, ka mahi ranei te whakarewanga ki tenei awhe pāmahana, ka rere ano te chromium carbide ki te taha o te rohe o te witi austenite, ka waikura te rohe o te witi, ka pakaru ranei te weld. Ko tenei ahuatanga ka kiia ko te sensitization. Hei whakapai ake i te parenga waikura intergranular o aua whakarewanga kowiri tira austenitic, he mea tika ki te taapiri i nga mea whakauru penei i te titanium me te niobium. Whai muri i te maimoatanga otinga, whakamahana ki te 850°C - 930°C, katahi ka tere whakamatao. I tenei ara, ko nga carbide o te titanium me te niobium ka tiimata tuatahi mai i te austenite, na reira ka aukati i te rerenga o te chromium carbide me te whakapai ake i te aukati o te waikura o te kowiri tira.
Wā tuku: Akuhata-18-2021