Izinsimbi ezingagqwali zingama-high-alloy steels anokumelana nokugqwala okuphezulu uma kuqhathaniswa nezinye izinsimbi ngenxa yokuba khona kwenani elikhulu le-chromium. Ngokusekelwe ekwakhiweni kwawo okucwebezelayo, ahlukaniswe abe izinhlobo ezintathu ezifana nezinsimbi ze-ferritic, austenitic, ne-martensitic. Elinye iqembu lezinsimbi ezingenasici yizinsimbi eziqiniswe yimvula. Ziyinhlanganisela yezinsimbi ze-martensitic ne-austenitic.
I-Grade 440C insimbi engagqwali iyinsimbi engagqwali ephezulu ye-carbon martensitic. Inamandla aphezulu, ukumelana nokugqwala okumaphakathi, nobulukhuni obuhle nokumelana nokugqoka. IBanga 440C liyakwazi ukuthola, ngemva kokwelashwa kokushisa, amandla aphakeme kakhulu, ubulukhuni kanye nokumelana nokugqoka kwawo wonke ama-alloys angenasici. Okuqukethwe kwayo kwekhabhoni ephezulu kakhulu kunesibopho salezi zici, ezenza i-440C ifanele ikakhulukazi izinhlelo zokusebenza ezifana namabheringi ebhola nezingxenye zamavalvu.
Amakhemikhali Okubunjwa amabanga angu-440C ensimbi engagqwali
Ibanga 440C | ||
Izithako | Okuncane. | Ubukhulu. |
Ikhabhoni | 0.95 | 1.20 |
IManganese | - | 1.00 |
I-silicon | - | 1.00 |
Phosphorus | - | 0.040 |
Isibabule | - | 0.030 |
I-Chromium | 16.00 | 18.00 |
I-Molybdenum | - | 0.75 |
Insimbi | Ibhalansi |
Izakhiwo ezibonakalayo zebanga lama-440 lezinsimbi ezingenasici
Ibanga | Ukuminyana (kg/m3) | I-Elastic Modulus (GPA) | I-Mean Coefficient of Thermal Expansion (mm/m/C) | I-Thermal Conductivity (W/m.K) | Ukushisa Okuthize 0-100C (J/kg.K) |
Ukumelana Nogesi (nW.m) | |||
0-100C | 0-200C | 0-600C | ngo 100C | ngo 500C | |||||
440A/B/C | 7650 | 200 | 10.1 | 10.3 | 11.7 | 24.2 | - | 460 | 600 |
440C Imininingwane Ehlobene
USA | EJalimane | Japan | Australia |
I-ASTM A276-98b 440C SAE 51440C AISI 440C I-UNS S44004 |
I-W.Nr 1.4125 X105CrMo17 | I-JIS G4303 SuS 440C | AS 2837-1986 440C |