A105 ibikoresho byicyuma

A105 numubare usanzwe wabanyamerika ASTM, naho A ugereranya ibyuma bisanzwe byubaka.
Izina risanzwe: ibyuma bya karubone kwibagirwa ibice bigize imiyoboro.Kuberako ibyuma bya karuboni imwe gusa byasobanuwe muriki gipimo, A105 niyo ntera ya karubone yo guhimba.A105 nayo ni code yibikoresho, ikaba ibyuma bidasanzwe kandi nicyuma gihimbano gikonje.A105 nicyuma gito cya karubone gihimbano, gisa nicyuma 20.Hariho amahame abiri, imwe ni igipimo cy’abanyamerika ASTM A105 / A105M Yibagiwe na Carbone Steel Yibagiwe Ibikoresho, naho ubundi ni Ubushinwa busanzwe bwa GB / T12228-2006 Uburyo bwa tekiniki bwibikoresho bya tekinike ya Carbone yibagirwa intego rusange.
Ibigize C: ≤ 0.35 Si: ≤ 0.35 Mn: 0.6-1.05 S: ≤ 0.050 P: ≤ 0.040, Cu ≤ 0.4 Ni ≤ 0.4 Mo ≤ 0.12 V ≤ 0.08 Cr ≤ 0.3
Ibikoresho bya mashini biri hagati ya No 20 ibyuma byahimbwe na 16Mn ibyuma byahimbwe.
Umutungo wa mashini (Mpa)
Imbaraga zingana: σ b） ≥485Mpa
Gutanga imbaraga （σ s） 5050Mpa
Kurambura inyandiko （δ） ≥22%
Kugabanya agace （ψ） ≥30%
Gukomera ≤ HB187