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  2. Oppo Neo 5 - Wikipedia

    en.wikipedia.org/wiki/Oppo_Neo_5

    The Oppo Neo 5 is the 3rd phone in the Oppo Neo Series. It is also known by the alias Oppo Neo 5 (4G) to distinguish it from other variants of the Neo 5 (Oppo Neo 5 (2015), Oppo Neo 5s). One of the selling points of the phone, as mentioned by the phones' official website, is a "Double-layer Metallic Structure" which Oppo claims gives the phone ...

  3. SAE steel grades - Wikipedia

    en.wikipedia.org/wiki/SAE_steel_grades

    The SAE steel grades system is a standard alloy numbering system (SAE J1086 – Numbering Metals and Alloys) for steel grades maintained by SAE International. In the 1930s and 1940s, the American Iron and Steel Institute (AISI) and SAE were both involved in efforts to standardize such a numbering system for steels. These efforts were similar ...

  4. Iron–nickel alloy - Wikipedia

    en.wikipedia.org/wiki/Iron–nickel_alloy

    A steel manufactured to have a very low thermal expansion: 36% Ni: Kamacite: A native metal found in meteoric iron: Fe [0.9] Ni [0.1] Maraging steel: A strong, malleable variant of steel: 15–25% Ni: Meteoric iron: A native combination of mostly kamacite and taenite, and minor amounts of tetrataenite, antitaenite, and awaruite: 5–30% Ni: Mu ...

  5. Austenitic stainless steel - Wikipedia

    en.wikipedia.org/wiki/Austenitic_stainless_steel

    18.5 NS: 9 NS: 1450 A very common austenitic stainless steel grade 1.4307 X2CrNi18-9 304L < 0.030 18.5 NS: 9 NS: 1450 Similar to the above but not susceptible to intergranular corrosion thanks to a lower C content. 1.4305 X8CrNiS18-9 e: 303 < 0.10 18 NS: 9 0.3 1420 Sulphur is added to improve machinability. 1.4541 X6CrNiTi18-10 321 < 0.08 18 NS ...

  6. Kanthal (alloy) - Wikipedia

    en.wikipedia.org/wiki/Kanthal_(alloy)

    Kanthal is the trademark for a family of iron-chromium-aluminium (FeCrAl) alloys used in a wide range of resistance and high-temperature applications. Kanthal FeCrAl alloys consist of mainly iron, chromium (20–30%) and aluminium (4–7.5 %). The first Kanthal FeCrAl alloy was developed by Hans von Kantzow in Hallstahammar, Sweden. The alloys ...

  7. Iron(III) oxide - Wikipedia

    en.wikipedia.org/wiki/Iron(III)_oxide

    Iron(III) oxide is a product of the oxidation of iron. It can be prepared in the laboratory by electrolyzing a solution of sodium bicarbonate, an inert electrolyte, with an iron anode: 4 Fe + 3 O 2 + 2 H 2 O → 4 FeO(OH) The resulting hydrated iron(III) oxide, written here as FeO(OH), dehydrates around 200 °C. [18] [19] 2 FeO(OH) → Fe 2 O 3 ...

  8. Allotropes of iron - Wikipedia

    en.wikipedia.org/wiki/Allotropes_of_iron

    Figure 1: The beta field and A 2 critical temperature on the iron-rich side of the iron-carbon phase diagram. [5] β-Fe and the A 2 critical temperature are important in induction heating of steel, such as for surface-hardening heat treatments. Steel is typically austenitized at 900–1000 °C before it is quenched and tempered.

  9. Austenite - Wikipedia

    en.wikipedia.org/wiki/Austenite

    Austenite, also known as gamma-phase iron (γ-Fe), is a metallic, non-magnetic allotrope of iron or a solid solution of iron with an alloying element. [1] In plain-carbon steel , austenite exists above the critical eutectoid temperature of 1000 K (727 °C); other alloys of steel have different eutectoid temperatures.