Iintsimbi ezingenasici ziziintsimbi eziphezulu ze-alloy ezinokumelana ne-corrosion ephezulu xa kuthelekiswa nezinye iintsimbi ngenxa yobukho bezixa ezikhulu zechromium. Ngokusekwe kwisakhiwo sabo sekristale, zahlulwe zaba ziindidi ezintathu ezinje nge-ferritic, austenitic, kunye neentsimbi ze-martensitic. Elinye iqela leentsimbi ezingenasici ziintsimbi eziqiniswa yimvula. Ziyindibaniselwano yeentsimbi ze-martensitic kunye ne-austenitic.
IBanga le-440C insimbi engenasici yintsimbi ye-carbon martensitic ephezulu. Inamandla amakhulu, ukumelana nokugqwala okuphakathi, kunye nobunzima obuhle kunye nokumelana nokunxiba. IBanga le-440C liyakwazi ukufumana, emva kokunyangwa kobushushu, amandla aphezulu, ukuqina kunye nokumelana nokunxiba kwazo zonke i-alloys ezingenasici. Umxholo wayo ophezulu kakhulu wekhabhoni unoxanduva lwezi mpawu, ezenza i-440C ifaneleke ngokukodwa kwizicelo ezifana neebheringi zebhola kunye neengxenye zevalve.
Uluhlu lweMichiza ye-440C yensimbi engenasici
IBakala440C | ||
Izithako | Min. | Max. |
Ikhabhoni | 0.95 | 1.20 |
IManganese | - | 1.00 |
Isilicon | - | 1.00 |
Iphosphorus | - | 0.040 |
Isulfure | - | 0.030 |
Chromium | 16.00 | 18.00 |
Molybdenum | - | 0.75 |
Intsimbi | Ibhalansi |
Iimpawu ezibonakalayo zebakala le-440 zentsimbi ezingenasici
IBanga | Ubuninzi (kg/m3) | I-Elastic Modulus (GPa) | I-Mean Coefficient yoKwandiswa kweThermal (mm/m/C) | I-Thermal Conductivity (W/m.K) | Ubushushu obuthile 0-100C (J/kg.K) |
Ukuxhathisa koMbane (nW.m) | |||
0-100C | 0-200C | 0-600C | kwi-100C | kwi500C | |||||
440A/B/C | 7650 | 200 | 10.1 | 10.3 | 11.7 | 24.2 | - | 460 | 600 |
440C Iinkcukacha ezinxulumeneyo
i-USA | Jemani | Japhan | Ostreliya |
I-ASTM A276-98b 440C SAE 51440C AISI 440C I-UNS S44004 |
W.Nr 1.4125 X105CrMo17 | I-JIS G4303 SuS 440C | AS 2837-1986 440C |