1. Bir loogu talagalay qaab dhismeedka hull xoogga guud
Birta xoogga guud ee qaab dhismeedka hull waxa loo qaybiyaa afar darajo: A, B, D iyo E 520N/mm^2)., laakiin awoodda saamaynta ee heerkulka kala duwan ayaa ka duwan;
Biraha qaab-dhismeedku waxay u qaybsan yihiin darajooyin xoog leh iyadoo loo eegayo awoodda wax-soo-saarka ugu yar, iyo darajo kasta oo xoog leh ayaa loo qaybiyaa darajooyin A, D, E, F4 iyadoo loo eegayo adkaanta saameynteeda.
Awoodda wax-soo-saarka ee A32, D32, E32, iyo F32 kama yarayn 315N/mm^2, xoogga xajintuna waa 440-570N/mm^2.Saamaynta adag ee lagu gaari karo -40 °, -60 °;
Awoodda wax-soo-saarka ee A36, D36, E36 iyo F36 kama yaraan 355N/mm^2, xoogga xajintuna waa 490～620N/mm^2.Saamaynta adag ee lagu gaari karo -40 °, -60 °;
Awoodda wax-soo-saarka ee A40, D40, E40, iyo F40 kama yara 390N/mm^2, xoogga xajintuna waa 510~660N/mm^2.Saamaynta adag ee lagu gaari karo -40 ° iyo -60 °.
ka sokow,
Awood sare oo la demiyo iyo bir dabcay oo loogu talagalay qaab dhismeedka alxanka: A420, D420, E420, F420;A460, D460, E460, F460;A500, D500, E500, F500;A550, D550, E550, F550;A620, D620, E620, F620;A690, D690, E690, F690;
Birta kuleyliyaha iyo weelasha cadaadiska: 360A, 360B;410A, 410B;460A, 460B;490A, 490B;1Cr0.5Mo, 2.25Cr1Mo
Birta qaab-dhismeedka farsamada: Guud ahaan, birta kor ku xusan waa la isticmaali karaa;
Heerkulka hoose ee adag ee birta: 0.5NiA, 0.5NiB, 1.5Ni, 3.5Ni, 5Ni, 9Ni;
Austenitic steel: 00Cr18Ni10, 00Cr18Ni10N, 00Cr17Ni14Mo2, 00Cr17Ni13Mo2N, 00Cr19Ni13Mo3, 00Cr19Ni13Mo3N, 0Cr18Ni11Nb;
Duplex birta aan lahayn: 00Cr22Ni5Mo3N, 00Cr25Ni6Mo3Cu, 00Cr25Ni7Mo4N3.
Saxan bir ah oo daboolan: ku habboon weelasha iyo taangiyada xamuulka qaada ee kiimikada;
Bir-jihada-Z: Waa bir lagu sameeyay daawayn gaar ah (sida daawaynta kalsiyum, vacuum degassing, argon warking, iwm) iyo daawaynta kulaylka habboon ee ku salaysan darajo gaar ah oo birta qaab-dhismeedka ah (oo loo yaqaan birta waalidka).
