Type 347/347H Stainless simbi ndeye austenitic giredhi yechromium simbi, ine columbium sechinhu chinodzikamisa. Tantalum inogonawo kuwedzerwa kuti uwane kugadzikana. Izvi zvinobvisa kunaya kwecarbide, pamwe neiyo intergranular corrosion mumapombi esimbi. Type 347 / 347H Stainless simbi mapaipi anopa yakakwirira inokambaira uye kushushikana kuputika zvivakwa pane giredhi 304 uye 304L. Izvi zvinoita kuti dzive dzakakodzera kuratidzwa kune sensitization uye intergranular corrosion. Uyezve, kuisirwa kwecolumbium kunobvumira mapaipi mazana matatu nemakumi mana nemanomwe kuti ave nekusagadzikana kwecorrosion, kunyangwe yakakwira kune iyo ye321 simbi isina tsvina pombi. Zvisinei, 347H simbi ndiyo yakakwira carbon composition inotsiva yestainless simbi pombi giredhi 347. Naizvozvo, 347H simbi machubhu anopa yakagadziridzwa tembiricha uye zvinokambaira zvinhu.
Nguva yekutumira: Zvita-10-2021