AH32 yog marine steel phaj, feem ntau yog siv los tsim cov hulls, decks, thiab lwm yam.
Marine steel daim hlau xa mus rau kub-kuav los tiag steel daim hlau ua raws li qhov yuav tsum tau ntawm kev faib pawg neeg tsim kev cai thiab siv los tsim lub nkoj hull cov qauv. Feem ntau yog siv rau kev tsim cov hulls, decks, thiab lwm yam ntawm dej hiav txwv-mus, ntug hiav txwv dej thiab dej hiav txwv shipping ships. Qhov chaw ua haujlwm ntawm cov nkoj yog hnyav. Lub plhaub plhaub yuav tsum tiv taus cov tshuaj corrosion, electrochemical corrosion ntawm seawater, thiab corrosion ntawm marine organisms thiab microorganisms. Nws kuj yuav tsum tiv taus qhov cuam tshuam ntawm cov cua loj thiab nthwv dej thiab cov khoom sib hloov. Tsis tas li ntawd, lub nkoj ua thiab molding yog complex thiab lwm yam yog vim li cas. Yog li ntawd, muaj cov kev cai nruj heev rau cov hlau siv hauv cov qauv hull. Zoo toughness yog qhov tseem ceeb tshaj yuav tsum tau. Tsis tas li ntawd, nws yuav tsum muaj lub zog siab, zoo corrosion kuj, vuam kev ua tau zoo, kev ua haujlwm thiab kev ua haujlwm zoo thiab qhov chaw zoo. Nws qhov sib piv Mn / C yuav tsum siab dua 2.5, nws kuj tseem muaj cov kev cai nruj ntawm cov pa sib npaug, thiab nws yuav tsum tau tsim los ntawm lub Hoobkas steel pom zoo los ntawm lub nkoj soj ntsuam. Hlau rau cov qauv hull tau muab faib ua ob hom: lub zog dav dav hlau thiab siab zog steel. Qhov zoo ntawm lub zog dav hlau yog muab faib ua 4 qib A, B, D, thiab E; Lub zog muaj zog hlau tau muab faib ua ob theem zog thiab 3 qib zoo: AH32, DH32, EH32, AH36, DH36, EH36.
Cov pa roj carbon (C) Tsawg dua lossis sib npaug rau {{0}}.18 Manganese (Mn) 0.70 ~ 1.6{{10}} Aluminium ( Al) Ntau dua lossis sib npaug rau 0.015 Silicon (Si) 0.1{{20}}} ~ 0.50 Phosphorus (P) Tsawg dua lossis sib npaug rau 0.04 Sulfur (S) Tsawg dua los yog sib npaug rau 0.4 Niobium (Nb) 0.015 ~ 0.050 Alum (V) 0.030 ~ 0.100yield zogσs (MPa) 315
