RINA E460 yog siab - lub zog marine steel daim hlau uas tau tsim tshwj xeeb kom ua tau raws li cov qauv nruj raws li RINA, lub koom haum muaj npe nrov rau cov nkoj thiab cov qauv hauv hiav txwv. Cov qib ntawm cov hlau phaj no muaj cov khoom siv zoo heev, ua rau lawv tsim nyog rau ntau yam kev siv dej hiav txwv.
Cov tshuaj muaj pes tsawg leeg ntawm RINA E460 steel daim hlau yog ua tib zoo sib npaug kom ntseeg tau tias kev ua haujlwm zoo. Cov phaj no feem ntau muaj carbon, silicon, manganese, phosphorus, sulfur, chromium, npib tsib xee, molybdenum, thiab tooj liab nyob rau hauv cov proportions meej. Cov khoom xyaw no ua kom lub zog tensile siab, zoo toughness, thiab tsis kam mus corrosion thiab qaug zog.
| C max | Si max | Mn | P max | S max | N max. |
0.20 | 0.55 | 1.70 | 0.025 | 0.025 | 0.020 |
Hais txog cov khoom siv kho tshuab, RINA E460 steel daim hlau nthuav tawm cov txiaj ntsig zoo thiab lub zog tensile, ua rau lawv zoo - haum rau cov qauv siv uas xav tau siab load- cov kabmob muaj peev xwm. Lawv kuj muaj qhov cuam tshuam zoo, uas yog qhov tseem ceeb hauv cov cheeb tsam hauv hiav txwv uas huab cua huab cua tuaj yeem ntsib.
| Yield zog (MPa) min. | Tensile zog (MPa) | Elongation min. % |
| 460 | 570-720 | 17 |
Cov hlau phaj feem ntau yog muab nkag rau hauv qhov normalized los yog quenched thiab tempered mob, nyob ntawm seb cov kev cai tshwj xeeb ntawm daim ntawv thov. Normalizing txhim kho lub toughness thiab cuam tshuam tsis kam ntawm cov hlau, thaum quenching thiab tempering ntxiv txhim khu nws lub zog thiab hardness.
Kev ntsuam xyuas cuam tshuam yog ib feem tseem ceeb ntawm cov txheej txheem kev ruaj ntseg zoo rau RINA E460 steel daim hlau. Cov kev ntsuam xyuas no tau ua los ntsuas cov hlau tsis kam tiv thaiv qis -kub tawg thiab xyuas kom meej tias nws ua tau raws li cov qauv xav tau.
Cov ntawv thov tseem ceeb rau RINA E460 steel daim hlau suav nrog kev tsim cov hulls, decks, bulkheads, thiab lwm yam khoom siv ntawm cov nkoj thiab cov nkoj hauv hiav txwv. Lawv lub zog siab thiab toughness ua rau lawv zoo tagnrho rau siv nyob rau hauv ob qho tib si kev lag luam thiab tub rog shipping daim ntaub ntawv.
