Saky steel Martensitic steel stainless luhlobo lwentsimbi yechromium egcina i-martensitic microstructure kwiqondo lobushushu begumbi, iipropathi zayo zinokuhlengahlengiswa ngonyango lobushushu (ukucima kunye nobushushu). Ngokuqhelekileyo, luhlobo lwentsimbi eqinileyo engenasici. Emva kokucima, ukufudumeza kunye nenkqubo yokucima, Ukuqina kwe-440 yensimbi engenasici kuye kwaphuculwa kakhulu kunezinye iintsimbi ezingenasici kunye nokushisa. Ngokuqhelekileyo isetyenziselwa ukuveliswa kwezixhobo zokuthwala, izixhobo zokusika, okanye izibungu zeplastiki ezifuna imithwalo ephezulu kunye nokumelana nokugqoka phantsi kweemeko ezinobungozi. American umgangatho 440 series steel stainless kuquka: 440A, 440B, 440C, 440F. Umxholo wekhabhoni we-440A, 440B kunye ne-440C unyuke ngokulandelelana. I-440F (i-ASTM A582) luhlobo lwentsimbi yokusika yamahhala kunye nomxholo we-S wongeziweyo ngesiseko se-440C.
Amabanga aLingeneyo kwi-440 SS
| eMelika | I-ASTM | 440A | 440B | 440C | 440F |
| UNS | S44002 | S44003 | S44004 | S44020 | |
| IsiJaphani | I-JIS | SUS 440A | I-SUS 440B | I-SUS 440C | I-SUS 440F |
| IsiJamani | I-DIN | 1.4109 | 1.4122 | 1.4125 | / |
| eTshayina | GB | 7Kr17 | 8Kr17 | 11Kr17 9Cr18Mo | Y11Cr17 |
Ukubunjwa kwemichiza ye-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 kwizibiyeli avumelekile kwaye akunyanzelekanga.
Ubunzima be-440 SS
| Amabanga | Ukuqina, ukudibanisa (HB) | Unyango lobushushu (HRC) |
| 440A | ≤255 | ≥54 |
| 440B | ≤255 | ≥56 |
| 440C | ≤269 | ≥58 |
| 440F | ≤269 | ≥58 |
Ngokufana nentsimbi ye-alloy eqhelekileyo, i-Saky steel's 440 series Martensite steel stainless ineempawu zokuqina ngokucinywa, kwaye inokufumana uluhlu olubanzi lweepropati zoomatshini ngonyango oluhlukeneyo lobushushu. Ngokubanzi, i-440A inomsebenzi obalaseleyo wokuqina kunye nobunzima obuphezulu, kwaye ukuqina kwayo kuphezulu kunoko kwe-440B kunye ne-440C. I-440B inobulukhuni obuphezulu kunye nokuqina kune-440A kunye ne-440C ye izixhobo zokusika, izixhobo zokulinganisa, iibheringi kunye neevalvu. I-440C inobunzima obuphezulu bayo yonke insimbi engenasici kunye nentsimbi ekwazi ukumelana nobushushu kwizixhobo eziphezulu zokusika izixhobo, imilomo kunye neebheringi. I-440F yintsimbi yokusika simahla kwaye isetyenziswa ikakhulu kwiileyile ezizenzekelayo.
Ixesha lokuposa: Jul-07-2020