Struktur as-cast sakabaja tahan karat austenitikcasting punika austenite + carbide utawa austenite + ferit. Perawatan panas bisa nambah resistance karat saka austenitic stainless steel casting.
Kelas Setara saka Austenitic Stainless Steel | ||||||||
| AISI | W-stoff | 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 | - | SUH 309 | X16 CrNi 24 14 |
| 330 | 1.4864 | X12 NiCrSi 36 16 | - | - | Z 12 NCS 35.16 | - | SUH 330 | - |
1. Solusi Panas Perawatan
Spesifikasi umum saka perawatan panas solusi yaiku: panas casting kanggo 950 ° C - 1175 ° C lan manggonke ing banyu, lenga utawa udhara sawise pengawetan panas kanggo rampung dissolve carbide ing stainless steel kanggo entuk struktur siji-phase. Pilihan saka suhu solusi gumantung ing isi karbon ing baja cast. Sing luwih dhuwur isi karbon, sing luwih dhuwur suhu solusi ngalangi dibutuhake.
Kanggo ngurangi prabédan suhu antarane lumahing casting baja lan inti sak proses dadi panas, cara dadi panas saka perawatan solusi saka stainless steel austenitic kudu preheated ing suhu kurang lan banjur cepet digawe panas kanggo suhu solusi. Ing wektu nyekeli kudu nambah cocog minangka kekandelan tembok saka casting mundhak.
Medium cooling kanggo perawatan solusi bisa dadi banyu, lenga utawa udhara, banyu sing paling umum digunakake. Pendinginan udara mung cocok kanggo casting baja kanthi tembok tipis.
Spesifikasi Perawatan Solusi Padat Cast Austenitic Stainless Steel | |||
| Kelas ing China | Kelas sing padha ing luar negeri | Suhu Solusi / ℃ | Kekerasan / HBW |
| ZG03Cr18Ni10 | / | 1050 - 1100 | / |
| ZG0Cr18Ni9 | / | 1080 - 1130 | / |
| ZG1Cr18Ni9 | G-X15CrNi18 8 (German Grade) | 1050 - 1100 | 140 - 190 |
| ZGCr18Ni9Ti | 950 - 1050 | 125 - 180 | |
| ZGCr18Ni9Mo2Ti | X18H9M2 (Rusia kelas) | 1000 - 1050 | 140 - 190 |
| ZG1Cr18Ni12Mo2Ti | X18H12M2 (Rusia kelas) | 1100 - 1150 | / |
| ZGCr18Ni11B | X18H11B (Rusia kelas) | 1100 - 1150 | / |
| ZG03Cr18Ni10 | CF-3 (kelas AS) | 1040 - 1120 | / |
| ZG08Cr19Ni11Mo3 | CF-3M (kelas AS) | 1040 - 1120 | 150 - 170 |
| ZG08Cr19Ni9 | CF-8 (kelas AS) | 1040 - 1120 | 140 - 156 |
| ZG08Cr19Ni10Nb | CF-8C (kelas AS) | 1065 - 1120 (Stabilisasi ing 870 - 900 ) | 149 |
| ZG07Cr19Ni10Mo3 | CF-8M (kelas AS) | 1065 - 1120 | 156 - 210 |
| ZG16Cr19Ni10 | CF-16F (kelas AS) | 1095 - 1150 | 150 |
| ZG2Cr19Ni9 | CF-20 (kelas AS) | 1095 - 1150 | 163 |
| ZGCr19Ni11Mo4 | CG-8M (kelas AS) | 1040 - 1120 | 176 |
| ZGCr24Ni13 | 1095 - 1150 | 190 | |
| ZG1Cr24Ni20Mo2Cu3 | 1100 - 1150 | / | |
| ZG2Cr15Ni20 | CK-20 (kelas AS) | 1095 - 1175 | 144 |
| ZGCr20Ni29Mo3Cu3 | CH-7M (kelas AS) | 1120 | 130 |
| ZG1Cr17Mn13N | 1100 | 223 - 235 | |
| ZG1Cr17Mn13Mo2CuN | 1100 | / | |
| ZG0Cr17Mn13Mo2CuN | 1100 | 223 - 248 | |
2. Stabilisasi
Baja tahan karat Austenitik nduweni ketahanan korosi sing apik sawise perawatan solusi. Nanging, nalika casting wis reheated kanggo 500 ° C-850 ° C utawa casting dianggo ing sawetara suhu iki, kromium karbida bakal maneh precipitate ing sadawane wates gandum austenite, nyebabake karat wates gandum utawa weld cracking. Fenomena iki diarani sensitisasi. Kanggo nambah resistance karat intergranular saka casting stainless steel austenitic kuwi, iku umume perlu kanggo nambah unsur alloying kayata titanium lan niobium. Sawise perawatan solusi, panasake maneh nganti 850 ° C - 930 ° C, banjur adhem kanthi cepet. Kanthi cara iki, carbide saka titanium lan niobium pisanan precipitated saka austenite, saéngga nyegah udan saka kromium carbide lan Ngapikake resistance karat wates gandum saka stainless steel.
Wektu kirim: Aug-18-2021