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2. Marine grade stainless - Wikipedia

   en.wikipedia.org/wiki/Marine_grade_stainless

   SAE 316 stainless steel is a molybdenum-alloyed steel and the second most common austenitic stainless steel (after grade 304). It is the preferred steel for use in marine environments because of its greater resistance to pitting corrosion than most other grades of steel without molybdenum. [1]

3. Vacuum arc remelting - Wikipedia

   en.wikipedia.org/wiki/Vacuum_arc_remelting

   Schematic of VAR apparatus. The alloy to undergo VAR is formed into a cylinder typically by vacuum induction melting (VIM) or ladle refining (airmelt). This cylinder, referred to as an electrode is then put into a large cylindrical enclosed crucible and brought to a metallurgical vacuum (0.001–0.1 mmHg or 0.1–13.3 Pa).

4. Stainless steel - Wikipedia

   en.wikipedia.org/wiki/Stainless_steel

   Stainless steel, also known as inox, corrosion-resistant steel (CRES), or rustless steel, is an iron-based alloy containing a minimum level of chromium that is resistant to rusting and corrosion. Stainless steel's resistance to corrosion results from the 10.5% or more chromium content, which forms a passive film that can protect the material ...

5. Riser clamp - Wikipedia

   en.wikipedia.org/wiki/Riser_clamp

   Riser clamp for a standpipe through-penetration firestop inside a fire hose cabinet under construction. A riser clamp is a type of hardware used by mechanical building trades for pipe support in vertical runs of piping (risers) at each floor level. The devices are placed around the pipe, and integral fasteners are then tightened to clamp them ...

6. Pipe support - Wikipedia

   en.wikipedia.org/wiki/Pipe_support

   It is rigid vertical type support provide from top only. It consists of clamp, eye nut, tie rod, beam attachment. Selection of rod hanger depends on pipe size, load, temperature, insulation, assembly length etc. As it comes with hinge and clamp, no substantial frictional force comes into play. 3) Rigid strut:

7. Ultra-high vacuum - Wikipedia

   en.wikipedia.org/wiki/Ultra-high_vacuum

   Some steels: due to oxidization of carbon steel, which greatly increases adsorption area, only stainless steel is used. Particularly, non-leaded and low-sulfur austenitic grades such as 304 and 316 are preferred. These steels include at least 18% chromium and 8% nickel.