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2. Stainless steel - Wikipedia

   en.wikipedia.org/wiki/Stainless_steel

   Stainless steel, also known as inox, corrosion-resistant steel (CRES), and 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 ...

3. Black oxide - Wikipedia

   en.wikipedia.org/wiki/Black_oxide

   Black oxide or blackening is a conversion coating for ferrous materials, stainless steel, copper and copper based alloys, zinc, powdered metals, and silver solder. [1] It is used to add mild corrosion resistance, for appearance, and to minimize light reflection. [ 2 ]

4. Thermite - Wikipedia

   en.wikipedia.org/wiki/Thermite

   A thermite mixture using iron(III) oxide. Thermite (/ ˈ θ ɜːr m aɪ t /) [1] is a pyrotechnic composition of metal powder and metal oxide.When ignited by heat or chemical reaction, thermite undergoes an exothermic reduction-oxidation (redox) reaction.

5. SAE 310S stainless steel - Wikipedia

   en.wikipedia.org/wiki/SAE_310S_stainless_Steel

   The high chromium and nickel content give the steel excellent oxidation resistance as well as high strength at high temperature. [citation needed] This grade is also very ductile, and has good weldability enabling its widespread usage in many applications. 310/310S find wide application in all high-temperature environments where scaling and ...

6. Powder coating - Wikipedia

   en.wikipedia.org/wiki/Powder_coating

   [citation needed] Certain low grade powder coats can be removed with steel wool, though this might be a more labor-intensive process than desired. Powder coating can also be removed by a burning off process, in which parts are put into a large high-temperature oven with temperatures typically reaching an air temperature of 300–450 °C.

7. Chemical coloring of metals - Wikipedia

   en.wikipedia.org/wiki/Chemical_coloring_of_metals

   Various colors on stainless steel 18 Cr / 8 Ni 7.5 g of sodium dichromate , 1000 mL of sulfuric acid (1.24 g/cm 3 ), lead cathodes, object as an anode, 70-90 °C temp, 0,06 A/dm 2 , voltage 1.3 V – colors depend on the duration of the procedure (5-50 min.), brown, blue, reddish brown, yellow, green.