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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. Hollow structural section - Wikipedia

   en.wikipedia.org/wiki/Hollow_structural_section

   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. Circular HSS are sometimes mistakenly called steel pipe, although true steel pipe is actually dimensioned and classed differently from HSS. (HSS ...

4. Orrcon Steel - Wikipedia

   en.wikipedia.org/wiki/Orrcon_Steel

   Precision tube Square, rectangular, round and oval precision tube. Hot-rolled structural steel Universal beams, universal columns, parallel flange channels, angles and merchant bar (including flats, angles and rounds) as well as a broad range of plate from 3 mm up to 200 mm. Pipelines Line pipe procurement and logistics services.

5. Steel grades - Wikipedia

   en.wikipedia.org/wiki/Steel_grades

   In addition to the descriptive steel grade naming system indicated above, within EN 10027-2 is defined a system for creating unique steel grade numbers. While less descriptive and intuitive than the grand names they are easier to tabulate and use in data processing applications.

6. Tube (structure) - Wikipedia

   en.wikipedia.org/wiki/Tube_(structure)

   The towers had a core for services, seen in the center. The design was not tube-in-tube since the core had 47 columns spaced relatively evenly, rather than around the edge of the core. This is the simplest incarnation of the tube. It can appear in a variety of floor plan shapes, including square, rectangular, circular, and freeform.

7. Structural steel - Wikipedia

   en.wikipedia.org/wiki/Structural_steel

   Steel never turns into a liquid below this temperature. Pure Iron ('Steel' with 0% Carbon) starts to melt at 1,492 °C (2,718 °F), and is completely liquid upon reaching 1,539 °C (2,802 °F). Steel with 2.1% Carbon by weight begins melting at 1,130 °C (2,070 °F), and is completely molten upon reaching 1,315 °C (2,399 °F).