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  2. ASTM A500 - Wikipedia

    en.wikipedia.org/wiki/ASTM_A500

    ASTM A500 is a standard specification published by the ASTM for cold-formed welded and seamless carbon steel structural tubing in round, square, and rectangular shapes. It is commonly specified in the US for hollow structural sections, but the more stringent CSA G40.21 is preferred in Canada.

  3. Orbitron - Wikipedia

    en.wikipedia.org/wiki/Orbitron

    The frame was handmade of rectangular 2x4 inch steel tubing. The engine was a leftover from one of Roth's 1955 Chevrolets, having been removed to make way for a then-new Mark IV big-block given to him by General Motors. It was one of the very few completed cars Roth deemed to be a "mistake" because he felt the car did not show well because the ...

  4. Fluorescent-lamp formats - Wikipedia

    en.wikipedia.org/wiki/Fluorescent-lamp_formats

    Many more tube ratings exist, often country-specific. The Nominal Length may not exactly match any measured dimension of the tube. For some tube sizes, the nominal length (in feet) is the required spacing between centers of the lighting fixtures to create a continuous run, so the tubes are a little shorter than the nominal length.

  5. Hollow structural section - Wikipedia

    en.wikipedia.org/wiki/Hollow_structural_section

    HSS members can be circular, square, or rectangular sections, although other shapes such as elliptical are also available. HSS is only composed of structural steel per code. HSS is sometimes mistakenly referenced as hollow structural steel. Rectangular and square HSS are also commonly called tube steel or box section.

  6. Backbone chassis - Wikipedia

    en.wikipedia.org/wiki/Backbone_chassis

    Backbone tube chassis is a type of automobile construction chassis that is similar to the body-on-frame design. Instead of a two-dimensional ladder-type structure, it consists of a strong tubular backbone (usually rectangular in cross section) that connects the front and rear suspension attachment areas. A body is then placed on this structure.

  7. Section modulus - Wikipedia

    en.wikipedia.org/wiki/Section_modulus

    In solid mechanics and structural engineering, section modulus is a geometric property of a given cross-section used in the design of beams or flexural members.Other geometric properties used in design include: area for tension and shear, radius of gyration for compression, and second moment of area and polar second moment of area for stiffness.

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