1. Ibyuma by'imbaraga rusange
The general strength steel for hull structure is divided into four grades: A, B, D and E. The yield strength (not less than 235N/mm^2) of these four grades of steel is the same as the tensile strength (400～ 520n / mm ^ 2). , ariko imbaraga zingirakamaro mubuturo butandukanye ziratandukanye;
Imbaraga zitanga A36, D36, E36 na F36 ntabwo ari munsi ya 355n / mm ^ 2, hamwe nimbaraga za tensile ni 490 ~ 620n / mm ^ 2. Ingaruka zikomeye zishobora kugerwaho kuri -40 °, -60 °;
Imbaraga zitanga A40, D40, E40, na F40 ntabwo ari munsi ya 390n / mm ^ 2, hamwe nimbaraga za tensile ni 510 ~ 660n / mm ^ 2. Ingaruka zikomeye zishobora kugerwaho kuri -40 ° na -60 °.
Byongeye kandi,
High-strength quenched and tempered steel for welded structure: A420, D420, E420, F420; A460, D460, E460, F460; A500, D500, E500, F500; A550, D550, E550, F550; A620, D620, E620, F620; A690, D690, E690, F690;
Steel for boilers and pressure vessels: 360A, 360B; 410A, 410B; 460A, 460B; 490A, 490B; 1cr0.5mo, 2.25cr1mo
Icyuma cyimiterere yubukanishi: Mubisanzwe, ibyuma byavuzwe haruguru birashobora gukoreshwa;
Ubushyuhe buke bwibyuma: 0.5Nnia, 0.5Nbi, 1.5NI, 3.5Nni, 5Nni, 9Nni;
Icyuma Cyane Cyane: 00cr18NI10, 00cr18NI10N5N5Ni14NI14MO25
Duplex idafite ibyuma: 00cr22Ni5Mo3n, 00cr25ni6Mo3cu, 00cr25ni7Mo4n3.
Icyapa cyambaye ubusa: gikwiriye ibikoresho n'ibigega by'imizigo by'abatwara imiti;
