303 isahani idafite ibyuma
Ahantu ho gukoreshwa: peteroli, ibikoresho bya elegitoroniki, imiti, imiti, imyenda yoroheje, ibiryo, imashini, ubwubatsi, ingufu za kirimbuzi, icyogajuru, igisirikare nizindi nganda! 303 nicyuma gikata kubusa kitarimo ibyuma birimo sulfure na seleniyumu. Ikoreshwa cyane mubisabwa aho bisabwa-gukata no hejuru hejuru birangiye. 303 ibyuma bidafite ingese biteza imbere gukata no guhangana nubushyuhe bwo hejuru. Ibyiza kumisarani yikora. Amababi n'imbuto. 303 ibyuma bitagira umuyonga ni austenitike yubusa-gukata ibyuma bitarinze kwambara. Kugirango tunoze imikorere yibi byuma, molybdenum irashobora kongerwamo ibyuma bitarenze 0,60 ﹪, bishobora kurwanya ablasi, kandi ibicuruzwa bifite imashini nziza kandi birwanya umuriro. Kurwanya ruswa. Nyuma yimiterere yubukanishi bwa .303 ibyuma bidafite ingese bifatanye kandi birababaje, imbaraga zingana ni 515MPa, umusaruro ni 205MPa, naho kurambura ni 40%. Ubukomezi busanzwe bwibyuma 303 HRB 90-100, HRC 20-25, Icyitonderwa: HRB100 = HRC20 Igihe cyoherejwe: Mutarama-19-2020