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  2. Steel grades - Wikipedia

    en.wikipedia.org/wiki/Steel_grades

    Download as PDF; Printable version; In other projects ... coupling needs to be painted color and then color codes Steel Grade ... according to EN 10027-2.Free ...

  3. List of RAL colours - Wikipedia

    en.wikipedia.org/wiki/List_of_RAL_colours

    Mandatory for all steel work in P&G / mandatory for taxis in Germany since 1971, although in limited states only in recent years. RAL 1016: Sulfur yellow: Standard European ambulance colour in accordance with CEN 1789. [2] RAL 1017: Saffron yellow: RAL 1018: Zinc yellow: RAL 1019: Grey beige: RAL 1020: Olive yellow: RAL 1021: Colza yellow

  4. Threaded rod - Wikipedia

    en.wikipedia.org/wiki/Threaded_rod

    Metric threaded rods are marked on the end with a color code to define the ISO strength class. The color codes are: [9] Unmarked — 4.6 class (tensile strength = 400 N/mm 2, yield strength 240 N/mm 2) Yellow — 8.8 class (800 N/mm 2, 640 N/mm 2) Green — A2 stainless steel (304) Red — A4 stainless steel (316) White — 10.9 class (1000 N ...

  5. Galvannealed - Wikipedia

    en.wikipedia.org/wiki/Galvannealed

    Galvannealed or galvanneal (galvannealed steel) is the result from the processes of galvanizing followed by annealing of sheet steel. Galvannealed steel is a matte uniform grey color, which can be easily painted. In comparison to galvanized steel the coating is harder, and more brittle.

  6. Pipe marking - Wikipedia

    en.wikipedia.org/wiki/Pipe_marking

    Background Color Text Color Carbon Dioxide: Gray: Black or White Helium: Brown: White Medical Air: Yellow: Black Oxygen: Green: White [e] Oxygen/Carbon Mixtures: Green: White Nitrogen: Black: White Nitrous Oxide: Blue: White Waste Anesthetic Gas Disposal: Purple: White Medical Surgical Vacuum: White: Black Non-Medical Air: Yellow/White Diagonal ...

  7. Spark testing - Wikipedia

    en.wikipedia.org/wiki/Spark_testing

    The sparks will be white in color. [1] [5] Medium-carbon steel This steel has more forking than mild steel and a wide variety of spark lengths, with more near the grinding wheel. [5] High-carbon steel High-carbon steel has a bushy spark pattern (much forking) that starts at the grinding wheel. The sparks are not as bright as the medium-carbon ...

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  9. PPGI - Wikipedia

    en.wikipedia.org/wiki/PPGI

    PPGI is pre-painted galvanised iron, also known as pre-coated steel, coil coated steel, color coated steel etc., typically with a hot dip zinc coated steel substrate.. The term is an extension of GI which is a traditional abbreviation for Galvanized Iron.