Q345ni ubwoko bw'icyuma giciriritse gikoreshwa cyane mubiraro, ibinyabiziga, amato, inyubako, ubwato bwumuvuduko, ibikoresho bidasanzwe, nibindi, aho "Q" bisobanura imbaraga zumusaruro, naho 345 bivuze ko umusaruro wibyuma ari 345MPa.
Igeragezwa rya q345 ibyuma bikubiyemo ahanini ibintu bibiri: icya mbere, niba ibice bigize ibyuma bigera kurwego rwigihugu; icya kabiri, niba imbaraga zumusaruro, ikizamini cya tensile, nibindi byuma byujuje ubuziranenge binyuze mubigo byumwuga. Ifite ibinyobwa bitandukanye biva kuri q235, nicyuma gisanzwe cya karubone na q345 nicyuma gito.
Gutondekanya ibikoresho bya Q345
Q345 irashobora kugabanywamo Q345A, Q345B, Q345C, Q345D na Q345E ukurikije amanota. Icyo bahagarariye ahanini nuko ubushyuhe bwingaruka butandukanye. Urwego Q345A, nta ngaruka; Urwego Q345B, dogere 20 ingaruka zubushyuhe busanzwe; Urwego Q345C, ingaruka 0; Urwego Q345D, -20 Impamyabumenyi; Urwego Q345E, -40 Impamyabumenyi. Ku bushyuhe butandukanye bwubushyuhe, ingaruka zingaruka nazo ziratandukanye.
bitandukanye.
Gukoresha ibikoresho bya Q345
Q345 ifite imiterere yubukanishi yuzuye, yemewe yubushyuhe buke, plastike nziza na weldability. Ikoreshwa nk'ubwato buciriritse kandi buto, ibigega bya peteroli, ibinyabiziga, crane, imashini zicukura amabuye y'agaciro, sitasiyo y'amashanyarazi, ibiraro nizindi nyubako, ibice byubukanishi, inyubako, hamwe nububiko rusange butwara imitwaro ifite imbaraga. Ibice byubatswe byuma, bikoreshwa mubihe bishyushye cyangwa bisanzwe, birashobora gukoreshwa muburyo butandukanye ahantu hakonje munsi ya -40 ° C.