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  2. Unified numbering system - Wikipedia

    en.wikipedia.org/wiki/Unified_numbering_system

    Many material or standard specifications include a number of different UNS numbers that may be used within that specification. For example: UNS S30400 (SAE 304, Cr/Ni 18/10, Euronorm 1.4301 stainless steel) could be used to make stainless steel bars or stainless steel plates for pressure vessels or pipes . Conversely, A312 pipes could be made ...

  3. Mill test report (metals industry) - Wikipedia

    en.wikipedia.org/wiki/Mill_test_report_(metals...

    A mill test report (MTR) and often also called a certified mill test report, certified material test report, mill test certificate (MTC), inspection certificate, certificate of test, or a host of other names, is a quality assurance document used in the metals industry that certifies a material's chemical and physical properties and states a product made of metal (steel, aluminum, brass or ...

  4. Steel grades - Wikipedia

    en.wikipedia.org/wiki/Steel_grades

    The number is in the following format: x.yyzz(zz) Where x is the material type (only 1 is specified so far), yy is the steel group number (specified in EN10027-2) and zz(zz) is a sequential number designated by the certifying body, the number in brackets being unused but reserved for later use. The steel groups are indicated below:

  5. Bill of materials - Wikipedia

    en.wikipedia.org/wiki/Bill_of_materials

    An example of a BOM for a mechanical assembly (in German) A bill of materials or product structure (sometimes bill of material, BOM or associated list) is a list of the raw materials, sub-assemblies, intermediate assemblies, sub-components, parts, and the quantities of each needed to manufacture an end product.

  6. Raw material - Wikipedia

    en.wikipedia.org/wiki/Raw_material

    A raw material, also known as a feedstock, unprocessed material, or primary commodity, is a basic material that is used to produce goods, finished goods, energy, or intermediate materials that are feedstock for future finished products. As feedstock, the term connotes these materials are bottleneck assets and are required to produce other products.

  7. Test method - Wikipedia

    en.wikipedia.org/wiki/Test_method

    As such, fully documenting experiments and measurements while providing needed documentation and descriptions of specifications, contracts, and test methods is vital. [ 6 ] [ 2 ] Using a standardized test method, perhaps published by a respected standards organization , is a good place to start.

  8. Specification (technical standard) - Wikipedia

    en.wikipedia.org/wiki/Specification_(technical...

    A specification often refers to a set of documented requirements to be satisfied by a material, design, product, or service. [1] A specification is often a type of technical standard. There are different types of technical or engineering specifications (specs), and the term is used differently in different technical contexts.

  9. Material requirements planning - Wikipedia

    en.wikipedia.org/wiki/Material_requirements_planning

    Material requirements planning (MRP) is a production planning, scheduling, and inventory control system used to manage manufacturing processes. Most MRP systems are software -based, but it is possible to conduct MRP by hand as well.