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  2. Stainless steel - Wikipedia

    en.wikipedia.org/wiki/Stainless_steel

    Stainless steel can be rolled into sheets, plates, bars, wire, and tubing. These can be used in cookware , cutlery , surgical instruments , major appliances , vehicles, construction material in large buildings, industrial equipment (e.g., in paper mills , chemical plants , water treatment ), and storage tanks and tankers for chemicals and food ...

  3. Hardness comparison - Wikipedia

    en.wikipedia.org/wiki/Hardness_comparison

    321 81: 85-41: 300 76: 80-37: 287 References. Further reading. ISO 18265: "Metallic materials — Conversion of hardness values" (2013) ASTM E140-12B(2019)e1 ...

  4. Austenitic stainless steel - Wikipedia

    en.wikipedia.org/wiki/Austenitic_stainless_steel

    300 series stainless steels are the larger subgroup. The most common austenitic stainless steel and most common of all stainless steel is Type 304, also known as 18/8 or A2. Type 304 is extensively used in such items as cookware, cutlery, and kitchen equipment. Type 316, also known as A4, is the next most common austenitic stainless steel.

  5. 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.

  6. Steel grades - Wikipedia

    en.wikipedia.org/wiki/Steel_grades

    EN 10027-1 steel grade designation system. European standard steel grade names fall into two categories: [1] Steel specified by purpose of use and mechanical properties.

  7. Unified numbering system - Wikipedia

    en.wikipedia.org/wiki/Unified_numbering_system

    A UNS number only defines a specific chemical composition, it does not provided full material specification. Requirements such as material properties (yield strength, ultimate strength, hardness, etc.), heat treatment, form (rolled, cast, forged, flanges, tubes, bars, etc.), purpose (high temperature, boilers and pressure vessels, etc.) and testing methods are all specified in the material or ...