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2. 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.

3. Culvert - Wikipedia

   en.wikipedia.org/wiki/Culvert

   As the diameter of the reline pipe will be smaller than the host pipe, the cross-sectional flow area will be smaller. By selecting a reline pipe with a very smooth internal surface with an approximate Hazen-Williams Friction Factor C value of between 140–150, the decreased flow area can be offset, and hydraulic flow rates potentially ...

4. Cement-mortar lined ductile iron pipe - Wikipedia

   en.wikipedia.org/wiki/Cement-mortar_lined...

   Cement-mortar lined ductile iron pipe is a ductile iron pipe with cement lining on the inside surface, and is commonly used for water distribution. Cement-mortar lined ductile iron pipe is governed by standards set forth by DIPRA ( Ductile Iron Pipe Research Association ), and was first used in 1922 in Charleston, South Carolina .

5. Ductile iron pipe - Wikipedia

   en.wikipedia.org/wiki/Ductile_iron_pipe

   The energy consumed in manufacturing ductile iron pipe was 19.55 MJ per kg and volume of emissions released during manufacture was 1.430 kg CO 2 per kg, compared to 68.30 MJ per kg of energy and 4.860 kg CO 2 per kg emissions for PVC pipes, and 1.24 MJ per kg and 0.148 kg CO 2 per kg for concrete pipes of the same diameter. [32]

6. Pipe (fluid conveyance) - Wikipedia

   en.wikipedia.org/wiki/Pipe_(fluid_conveyance)

   ASTM A312 (Seamless and welded austenitic stainless steel pipe) ASTM C76 (Concrete Pipe) ASTM D3033/3034 (PVC Pipe) ASTM D2239 (Polyethylene Pipe) ISO 14692 (Petroleum and natural gas industries. Glass-reinforced plastics (GRP) piping. Qualification and manufacture) ASTM A36 (Carbon steel pipe for structural or low pressure use)

7. Trump reiterates opposition to Nippon Steel's takeover of U.S ...

   www.aol.com/news/trump-reiterates-opposition...

   (Reuters) -U.S. President-elect Donald Trump said on Monday a series of tax incentives and tariffs will revive storied American firm U.S. Steel, as he reiterated his opposition to Nippon Steel's ...

8. Prestressed concrete cylinder pipe - Wikipedia

   en.wikipedia.org/wiki/Prestressed_concrete...

   Prestressed concrete cylinder pipe (PCCP) is a common variety of large-diameter concrete pressure pipe used for transporting water and wastewater. PCCP is typical manufactured according to the American Water Works Association (AWWA) standard C304. [ 1 ]

9. Here Are Two Major Social Security Changes Retirees Need to ...

   www.aol.com/finance/two-major-social-security...

   Image source: Getty Images. 1. Monthly benefits will be higher in 2025. The most notable change to Social Security benefits in 2025 should be good news.