Intsimbi yeSaky Intsimbi yeMartensitic engatyiwayo luhlobo lwentsimbi ye-chromium engatyiwayo egcina isakhiwo se-martensitic kubushushu begumbi, apho iimpawu zayo zinokulungiswa ngonyango lobushushu (ukucima kunye nokushisa). Ngokubanzi, luhlobo lwentsimbi engatyiwayo eqina. Emva kwenkqubo yokucima, ukufudumala kunye nokutshisa, ubunzima bentsimbi engatyiwayo ye-440 buphuculwe kakhulu kunobo bezinye iintsimbi ezingatyiwayo nezimelana nobushushu. Isetyenziswa kakhulu ekwenziweni kweebheringi, izixhobo zokusika, okanye iimold zeplastiki ezifuna imithwalo ephezulu kunye nokumelana nokuguguleka phantsi kweemeko zokubola. Intsimbi engatyiwayo esemgangathweni yaseMelika ye-440 series equka: 440A, 440B, 440C, 440F. Umxholo wekhabhoni we-440A, 440B kunye ne-440C unyuke ngokulandelelana. I-440F (ASTM A582) luhlobo lwentsimbi yokusika ekhululekileyo enomxholo we-S owongeziweyo ngokusekelwe kwi-440C.
Amanqanaba alinganayo e-440 SS
| UmMelika | I-ASTM | 440A | 440B | 440C | 440F |
| I-UNS | S44002 | S44003 | S44004 | S44020 | |
| IsiJaphani | I-JIS | I-SUS 440A | I-SUS 440B | I-SUS 440C | I-SUS 440F |
| IsiJamani | I-DIN | 1.4109 | 1.4122 | 1.4125 | / |
| iTshayina | GB | 7Cr17 | 8Cr17 | 11Cr17 9Cr18Mo | Y11Cr17 |
Ukwakhiwa kweekhemikhali ze-440 SS
| Amabanga | C | Si | Mn | P | S | Cr | Mo | Cu | Ni |
| 440A | 0.6-0.75 | ≤1.00 | ≤1.00 | ≤0.04 | ≤0.03 | 16.0-18.0 | ≤0.75 | (≤0.5) | (≤0.5) |
| 440B | 0.75-0.95 | ≤1.00 | ≤1.00 | ≤0.04 | ≤0.03 | 16.0-18.0 | ≤0.75 | (≤0.5) | (≤0.5) |
| 440C | 0.95-1.2 | ≤1.00 | ≤1.00 | ≤0.04 | ≤0.03 | 16.0-18.0 | ≤0.75 | (≤0.5) | (≤0.5) |
| 440F | 0.95-1.2 | ≤1.00 | ≤1.25 | ≤0.06 | ≥0.15 | 16.0-18.0 | / | (≤0.6) | (≤0.5) |
Qaphela: amaxabiso akwizibiyeli avumelekile kwaye awanyanzelekanga.
Ubunzima be-440 SS
| Amabanga | Ukuqina, i-Annealing (HB) | Unyango lobushushu (HRC) |
| 440A | ≤255 | ≥54 |
| 440B | ≤255 | ≥56 |
| 440C | ≤269 | ≥58 |
| 440F | ≤269 | ≥58 |
Njengentsimbi ye-alloy eqhelekileyo, intsimbi ye-Saky steel ye-440 series Martensite stainless steel ineempawu zokuqina ngokucima, kwaye inokufumana uluhlu olubanzi lweempawu zoomatshini ngonyango lobushushu olwahlukeneyo. Ngokubanzi, i-440A inokusebenza kakuhle kokuqina kunye nobunzima obuphezulu, kwaye ubunzima bayo buphezulu kunobo be-440B kunye ne-440C. I-440B inobunzima kunye nobunzima obuphezulu kune-440A kunye ne-440C. izixhobo zokusika, izixhobo zokulinganisa, iibheringi kunye neevalvu. I-440C inobunzima obuphezulu kunayo yonke intsimbi engagqwaliyo kunye nentsimbi engatshisiyo enyamezela ubushushu kwizixhobo zokusika ezikumgangatho ophezulu, ii-nozzles kunye neebheringi. I-440F yintsimbi ekhululekileyo kwaye isetyenziswa kakhulu kwiilathe ezizenzekelayo.
Ixesha lokuthumela: Julayi-07-2020