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Stainless Simbi - Giredhi 347H (UNS S34709) chimiro chemakemikari

Nhanganyaya

Simbi dzisina simbi dzakakura-alloy simbi dzine high corrosion resistance pane mamwe masimbi nekuda kwekuvapo kwehuwandu hwakawanda hwechromium muchikamu che4 kusvika ku30%.Simbi dzisina tsvina dzakakamurwa kuita martensitic, ferritic uye austenitic zvichibva pane yavo crystalline chimiro.Mukuwedzera, vanoumba rimwe boka rinozivikanwa semvura inonaya-yakaomeswa masimbi, ayo ari musanganiswa wemartensitic uye austenitic simbi.

Iri rinotevera dhetabheti rinozopa rumwe ruzivo nezve giredhi 347H Stainless simbi, iyo yakati wandei kusimba kupfuura giredhi 304 simbi.

Kuumbwa Kwemakemikari

Tafura inotevera inoratidza kuumbwa kwemakemikari egiredhi 347H simbi isina tsvina.

Element Zvirimo (%)
Iron, Fe 62.83 - 73.64
Chromium, Cr 17-20
Nickel, Ni 9 – 13
Manganese, Mn 2
Silicon, Si 1
Niobium, Nb (Columbium, Cb) 0.320 - 1
Carbon, C 0.04 - 0.10
Phosphorous, P 0.040
Sulfur, S 0.030

Zvinhu Zvenyama

Zvimiro zvemuviri zvegiredhi 347H simbi isina tsvina zvinopihwa mutafura inotevera.

Properties Metric Imperial
Density 7.7 – 8.03 g/cm3 0.278 - 0.290 lb/in³

Mechanical Properties

Iyo mechanic properties yegiredhi 347H simbi isina tsvina inoratidzwa mutafura inotevera.

Properties Metric Imperial
Kusimba simba, kwekupedzisira 480 MPa 69600 psi
Kusimba simba, goho 205 MPa 29700 psi
Kuputika simba (@750°C/1380°F, nguva 100,000 maawa) 38 - 39 MPa, 5510 - 5660 psi
Elastic modulus 190 - 210 GPA 27557 - 30458 ksi
Chiyero chePoisson 0.27 - 0.30 0.27 - 0.30
Elongation panguva yekuzorora 29% 29%
Kuoma, Brinell 187 187

Nguva yekutumira: Mar-30-2023