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2. Copper tubing - Wikipedia

   en.wikipedia.org/wiki/Copper_tubing

   While pipe sizes in Australia are inch-based, they are classified by outside rather than inside diameter (e.g., a nominal 3 ⁄ 4 inch copper pipe in Australia has measured diameters of 0.750 inches outside and 0.638 inches inside, whereas a nominal 3 ⁄ 4 inch copper pipe in the U.S. and Canada has measured diameters of 0.875 inch outside and ...

3. Pipelines in Canada - Wikipedia

   en.wikipedia.org/wiki/Pipelines_in_Canada

   The Canadian Energy Pipeline Association (CEPA), whose 2019 members included Alliance Pipeline (natural gas), ATCO Pipelines (natural gas), Enbridge, Inter Pipeline, Pembina Pipeline (oil and natural gas), Plains All American Pipeline known also as Plains Midstream Canada, TC Energy (oil and natural gas), TransGas's TransGas Pipelines, Trans Mountain pipeline, Trans Northern Pipelines, and ...

4. Tempering (metallurgy) - Wikipedia

   en.wikipedia.org/wiki/Tempering_(metallurgy)

   This produces steel that is much stronger than full-annealed steel, and much tougher than tempered quenched steel. However, added toughness is sometimes needed at a reduction in strength. Tempering provides a way to carefully decrease the hardness of the steel, thereby increasing the toughness to a more desirable point.

5. Propane, butane, and LPG container valve connections

   en.wikipedia.org/wiki/Propane,_butane,_and_LPG...

   The iOverlander [2] database maintained by travelers, My LPG [3] and the Facebook group "Cooking Gas Around the World [4]" provide more information about individual sources per country. Much general information about global LPG use and standardization is available from the World LPG Association [ 5 ] and the AEGPL [ 6 ]

6. List of Canadian natural gas companies - Wikipedia

   en.wikipedia.org/wiki/List_of_Canadian_natural...

   This is a list of Canadian natural gas companies: ATCO - based in Edmonton, Alberta [1] AltaGas - based in Calgary, Alberta; Anderson; Canadian Natural Resources - based in Calgary; Dejour Energy - based in British Columbia; Direct Energy - formerly based in Toronto and now based in Houston, Texas

7. Heat treating - Wikipedia

   en.wikipedia.org/wiki/Heat_treating

   However, quenching certain steel too fast can result in cracking, which is why high-tensile steels such as AISI 4140 should be quenched in oil, tool steels such as ISO 1.2767 or H13 hot work tool steel should be quenched in forced air, and low alloy or medium-tensile steels such as XK1320 or AISI 1040 should be quenched in brine.

8. Category:Natural gas companies of Canada - Wikipedia

   en.wikipedia.org/wiki/Category:Natural_gas...

   Defunct oil and gas companies of Canada (25 P) E. Enbridge (2 C, 18 P) F. Fortis Inc. (15 P, 1 F) H. Husky Energy (1 C, 2 P) I. Imperial Oil (13 P) T. TC Energy (2 C ...

9. Pipe (fluid conveyance) - Wikipedia

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

   In Canada, with respect to natural gas (NG) and propane (LP gas), black iron pipe (BIP) is commonly used to connect an appliance to the supply. It must however be marked (either painted yellow or yellow banding attached at certain intervals) and certain restrictions apply to which nominal pipe size (NPS) can be put through walls and buildings.