qee qhov kev nkag siab zoo txog marine steel phaj
Marine steel phaj yog ib qho ntawm cov khoom siv tseem ceeb hauv kev tsim nkoj, thiab nws daim ntawv thov ntau heev. Ua ntej tshaj plaws, Marine steel daim hlau tuaj yeem siv rau kev tsim qauv ntawm lub hull, nrog rau cov qauv tseem ceeb ntawm lub hull, lawj, bulkhead, mast, thiab lwm yam, nrog rau cov qauv kev txhawb nqa ntawm ntau yam khoom siv thiab cov kav dej ntawm lub nkoj. Thib ob, Marine steel daim hlau kuj tuaj yeem siv rau hauv kev tsim cov khoom siv nkoj, xws li docks, cranes, tugs, roj tankers thiab lwm yam. Tsis tas li ntawd, Marine steel daim hlau kuj tseem tuaj yeem siv rau kev tshawb nrhiav roj av, kev tsim hluav taws xob sab nrauv, kev tshawb fawb txog Marine thiab lwm lub nroog loj: xws li roj drilling RIGS, offshore cua fais fab thiab lwm yam khoom tsim khoom. Feem ntau, daim ntawv thov ntawm Marine steel phaj yog dav heev, yog ib qho tseem ceeb ntawm cov khoom siv hauv nkoj thiab lwm yam.
General lub zog hull qauv steel tau muab faib ua A, B, C, D4 qib, cov 4 qib steel yield zog (tsis pub tsawg tshaj 235N / mm ^ 2) thiab tensile zog (400 ~ 520N / mm ^ 2) tib yam, tab sis qhov cuam tshuam ua haujlwm ntawm qhov sib txawv ntawm qhov kub thiab txias tsis zoo ib yam; High-strength steel rau hull qauv yog muab faib ua qib zog raws li nws qhov tsawg kawg nkaus yield zog, thiab txhua qib zog yog muab faib ua A, D, E thiab F4 qib raws li nws tej yam toughness.
Lub zog tawm ntawm A32, D32, E32 thiab F32 tsis tsawg dua 315N / mm^2, thiab lub zog tensile yog 440 ~ 570N / mm^2.A, D, E thiab F feem qhia qhov cuam tshuam toughness uas tuaj yeem ua tiav ntawm 0 degree, -20 degree, -40 degree thiab -60 degree feem.
Lub zog tawm ntawm A36, D36, E36 thiab F36 tsis tsawg dua 355N / mm^2, thiab lub zog tensile yog 490 ~ 620N / mm^2. A, D, E thiab F feem qhia qhov cuam tshuam toughness uas tuaj yeem ua tiav ntawm 0 degree, -20 degree, -40 degree thiab -60 degree feem.
Lub zog tawm los ntawm A40, D40, E40 thiab F40 tsis tsawg dua 390N / mm^2, lub zog tensile ntawm 510 ~ 660N / mm^2, A, D, E thiab F feem qhia qhov cuam tshuam toughness uas tuaj yeem ua tiav ntawm 0 degree, -20 degree, -40 degree thiab -60 degree feem.
