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Marine Project Engineers and Structural Engineers are developing more and more applications for NAVTRUSSâ and NAVSTEELâ : ASTECH’s truss-core and honeycomb sandwich panel technology. Lightweight, strong, and versatile, these panels have proven themselves in structures such as turbine-exhaust uptakes, deck-edge elevator doors, antenna platforms, workshops, and deckhouses. Other applications include helicopter hangers and hanger doors, platform decks on naval combatants, as well as hotel spaces and landing decks for offshore drilling platforms.
NAVTRUSSâ and NAVSTEELâ are all-resistance-welded sandwich panels which can be manufactured in any reasonable length, up to 48" in width in a variety of core geometries, face sheet and core thickness.
Marine structures incorporating NAVTRUSSâ and NAVSTEELâ have provided weight savings of 25% to 45% over plate and stringer structures, while maintaining equivalent strength and stiffness. This structural efficiency is more important as ships become top heavy with added electronics or weapons systems. Furthermore, ships can maintain their seaworthiness without additional ballast, thus reducing fuel consumption and cost. Ship speed can be maximized as well. All panels are manufactured with stainless steel, which is very corrosion resistant, and maintenance free. In addition to being lightweight, these panels are strong and tough. When tested, they met the requirements of NAVSEA 804-46-23540, as well as the survivability required in shock test, in accordance with MIL S-901. They can sustain Grade A shock impact. Because NAVTRUSSâ and NAVSTEELâ panels are fabricated without any intermediate materials, they are not subject to the corrosion and toxicity problems these parasitic materials cause. Moreover, the panels are fire resistant in accordance with test specification ASTM-E-119. 
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