Saky Simbi inogadzira 440 akatevedzana akaomarara martensitic Stainless simbi mashiti & mahwendefa 440A, 440B, 440C.
AISI 440A, UNS S44002, JIS SUS440A, W.-nr. 1.4109 ( DIN X70CrMo15 ) simbi isina tsvina mapepa, mahwendefa, flats
AISI 440B, UNS S44003, JIS SUS440B, W.-nr. 1.4112 ( DIN X90CrMoV18 ) simbi isina tsvina masheets, ndiro, flats
AISI 440C, UNS S44004, JIS SUS440C, W.-nr. 1.4125 ( DIN X105CrMo17 ) simbi isina tsvina mapepa, mahwendefa, flats
440A 440B 440C chikamu chemakemikari:
| Giredhi | C | Si | Mn | S | P | Cr | Ni | Mo |
| 440A | 0.60~0.75 | ≤1 | ≤1 | ≤0.030 | ≤0.040 | 16.00 ~18.00 | - | ≤0.75 |
| 440B | 0.85～0.95 | ≤1 | ≤1 | ≤0.030 | ≤0.035 | 16.00 ~18.00 | ≤0.60 | ≤0.75 |
| 440C | 0.95 - 1.20 | ≤1 | ≤1 | ≤0.030 | ≤0.040 | 16.00 ~18.00 | - | ≤0.75 |
Iyo kabhoni yemukati uye kuoma kwe440A-440B-440C yakawedzera zvakateerana kubva kuABC (A-0.75%, B-0.9%, C-1.2%). Iyo 440C yakanaka kwazvo yepamusoro-yekupedzisira simbi isina tsvina ine kuoma kwe56-58 RC. Aya masimbi matatu ane huturu hwakanaka, 440A ndiyo yakanakisisa, uye 440C ndiyo yakaderera. Iyo 440C yakajairika. Iko kemikari yemartensitic simbi isina tsvina inoratidzirwa nekuwedzerwa kwezvinhu zvakadai se molybdenum, tungsten, vanadium, uye niobium zvichienderana nekubatanidzwa kwezvikamu zvakasiyana zve 0.1% -1.0% C uye 12% -27% Cr. Sezvo chimiro chenyama chiri muviri-centered cubic structure, simba rinodonha zvakanyanya pakupisa kwepamusoro. Pazasi pe600 ° C, iyo yakanyanya tembiricha simba ndiyo yepamusoro-soro pakati pemhando dzese dzesimbi isina tsvina, uye simba rekukwenya ndiro rakakwirira zvakare. 440A ine yakanakisa kudzima uye kuomesa zvivakwa uye yakanyanya kuoma. Iyo ine yakakwirira kuoma kupfuura 440B simbi uye 440C simbi. 440B inoshandiswa kucheka maturusi, maturusi ekuyeresa, mabheya uye mavharuvhu. Iyo ine kuoma kwepamusoro kupfuura 440A simbi uye yakakwirira kuoma kupfuura 440C simbi. Iyo 440C ine yakanyanya kuoma kwese simbi isina-stainless uye inodzivirira kupisa uye inoshandiswa kune nozzles nemabearings. 440F igiredhi resimbi rinonatsiridza zviri nyore-kucheka zvimiro zve440C simbi ye otomatiki lathes.
Nguva yekutumira: Aug-17-2018